The free-tier directory

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Compare free services, limits and conditions.

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Total services756

Only ongoing free allowances and recurring credits are counted here. View 3 time-limited / expiring offers separately.

Free allowance

One Free instance: 512 MB RAM, 0.1 vCPU, 2 GB SSD

Keep in mind

Koyeb announced in February 2026 that new users must subscribe to a paid plan; existing Starter organizations retain their free instance. Some documentation still lists Starter, so confirm signup eligibility. Card required ($29 temporary authorization); limited regions, idle sleep and no persistent volumes.

Free allowance

Always Free: up to two AMD E2.1.Micro VMs (1/8 OCPU, 1 GB RAM each); Arm Ampere A1: 1,500 OCPU-hours and 9,000 GB-hours/month (equivalent to 2 OCPUs and 12 GB RAM for Always Free tenancies); 200 GB shared boot/block volume storage.

Keep in mind

Compute must run in the home region; capacity may be unavailable and idle instances may be reclaimed. Payment card required for account verification. Boot volumes use the shared 200 GB allowance; paid account overages can incur charges. Verify tenancy-specific A1 limits.

Free allowance

30M queried vector dimensions/month; 5M stored vector dimensions; up to 100 indexes

Keep in mind

Free plan queries and storage are dimension-based, not a fixed request count; up to 1,536 dimensions/vector and 1,000 namespaces/index. Workers usage has separate limits.

Free allowance

100 GB data ingest/month; 1 full-platform user; unlimited basic users; 500 synthetic checks; at least 8 days default retention

Keep in mind

When the 100 GB monthly free ingest allowance is exceeded, ingest and platform access stop until upgrade or next month; retention varies by data type.

Free allowance

10 GB storage; 1,000 requests/day per organization; 0.25 vCPU (up to 3x burst); 1 query thread

Keep in mind

Shared infrastructure; CPU bursts beyond capacity return HTTP 429; Free queries have a 10-second execution limit; $25 LLM credits per billing cycle are separate.

Free allowance

1 GB average storage/month; 10 GB bandwidth, 10,000 simple and 2,000 advanced operations/month

Keep in mind

Free bucket stops serving requests when any quota is exhausted until its 30-day window resets; multipart uploads count as advanced operations.

Free allowance

One cluster/user; 100,000 objects, 1 GB RAM, 10 GB disk; 2,000 embedding requests/day and 1,000 Query Agent requests/month

Keep in mind

One collection and up to three tenants; limited AWS regions, no backups or HA, best-effort availability.

Free allowance

Up to 6,000 build minutes/month on a small Docker resource; up to 5 active users

Keep in mind

Build-minute consumption varies by resource class and credit rate; higher-resource jobs exhaust the free allowance sooner. Paid plans offer additional credits.

Free self-hosted software
Free allowance

Apache-2.0 open-source CI/CD for self-hosted pipelines; no software-enforced build-minute or pipeline-run quotas, with Docker, Podman, Kubernetes and other agent backends.

Keep in mind

Self-hosted only: provide and pay for your own servers/runners, storage and networking; capacity and costs depend on your infrastructure. No managed free runner allowance is included.

Free allowance

30,000 outbound webhook attempts/month; 5 queues; up to 5 attempts/job; 3-day job retention

Keep in mind

Each dispatched webhook POST, including retries and backpressure responses, counts as an attempt; backpressure waiting is free. Commercial-use terms need confirmation.

Free allowance

3 online endpoints; 1 GB transfer and 20,000 HTTP/S requests/month; 5,000 TCP/TLS connections/month

Keep in mind

HTTP/S interstitial; $5 one-time usage credit expires after one year; no usage beyond credit; custom domains require paid plan.

Free allowance

500 GB data loading/month; 10 GB-hours query compute/month; 25 GB storage; 30-day retention

Keep in mind

Intended for individuals and small projects; soft dataset, field and query-concurrency limits; commercial use unconfirmed.

Free allowance

10,000 events/month; 100,000 discarded requests/month; 5 events/second per destination; 3-day event retention

Keep in mind

One user; retries included. After 10,000 events, dashboard locks until next billing period or upgrade; excessive overages may stop processing.

Free allowance

Up to 6 users; unlimited user devices; 50 tagged resources; 1,000 ephemeral-resource minutes/month

Keep in mind

Personal plan is non-commercial only; business/custom-domain signup enters a business trial by default; additional tagged resources are paid.

Free allowance

10 GB storage and 10 Pulse compute CU-hours/month; up to 3 internal active users and 2 service accounts

Keep in mind

Free accounts are for internal business use only; embedding in third-party products/services is prohibited. Usage beyond included quotas requires a paid account; no SLA.

Free allowance

3 projects; 20 publishes/month; custom domains and managed HTTPS

Keep in mind

Early access. Static CLI uploads are limited to 50 MB and 5,000 files; server-rendered Next.js requires a paid plan. No hosted databases or long-lived backend servers.

Free allowance

10,000 workflow runs/month; up to 20 workflows; 2 environments (Dev + Prod); up to 3 team members

Keep in mind

Free includes all notification channels but activity-feed retention is 24 hours and throughput is limited to 60 events/second. Provider states no credit card is required; commercial-use terms were not explicitly confirmed.

Free allowance

10,000 inbound events/month; 3 sources; 9 shared destinations; 1 workspace member; 14-day event retention

Keep in mind

120 inbound events/minute per source; up to 20% monthly quota buffer without overage charges; ordered delivery, static outbound IP and DPA require paid plans. Commercial-use terms not explicitly confirmed.

Free allowance

30,000 application requests/month; 1 GB logging; 5-day retention; unlimited users, teams, applications and dashboards

Keep in mind

New Free accounts use the 30K request limit. Existing Free accounts keep 50K requests/month until October 31, 2026. Crossing the request or logging limit locks AppSignal UI/API access and disables notifications; there are no overage invoices.

Free allowance

20 million events/month; 100 million metrics data points/month; unlimited seats; unlimited querying

Keep in mind

SLOs and Service Map are not included on Free. Free support is limited to account support. Commercial-use terms need confirmation.

Free allowance

2 projects/workspace; unlimited flags; 3 environments; 3 seats; 75,000 evaluations/month; 50 AI messages/month

Keep in mind

Free plan is aimed at side projects and small teams; paid tiers add higher evaluation quotas and advanced controls.

Free allowance

100,000 requests/month; 1,000 API keys; unlimited APIs; 1 workspace member

Keep in mind

Official homepage and pricing page have conflicting request quotas; use conservative pricing-page limit and recheck before merging. Reselling or white-labeling requires separate agreement.

Free allowance

1,000,000 logs/crashes/events per month; 30-day retention; 1 app; 1 team member; email alerts; 3 AI RCA and 3 AI Session Summaries per month

Keep in mind

Free plan limits usage to 1 app and 1 team member; AI RCA and AI Session Summaries are limited to 3 each per month.

Free allowance

10 uptime monitors; 1,000 Browser check runs and 10,000 API check runs/month; 1 user; 7-day raw data retention

Keep in mind

Hobby is intended for personal projects and learning; 1 user and 7-day raw data retention; monitoring frequency and check runs are capped.

Free allowance

250 survey responses/month; 1 workspace; link and in-product surveys; full API access including MCP

Keep in mind

Cloud Hobby includes Formbricks branding; response cap is 250/month; self-hosted Community Edition is a separate option; explicit commercial-use terms not confirmed.

Free allowance

2 workload slots sharing 1 GB RAM, 1 vCore and 1 GB storage; 1 backup per workload with 7-day retention; no scheduled idle sleep or periodic renewal

Keep in mind

Beta hosting without uptime SLA; capacity and fair-use rules apply. Resources shared across workloads; independent backups recommended. Founder Free (5 slots, 2 GB RAM, 1.5 vCore, 2 GB storage) requires signup by 15 Oct 2026 17:00 CEST; not the standard plan. Commercial-use terms not independently confirmed.

Free allowance

10,000 monthly active users; 2 projects; passkeys, passwords/passwordless, social SSO, MFA, custom domain

Keep in mind

Hosted in AWS Frankfurt; webhooks, Admin API, custom SMTP and team invites require Pro; repeated overage prompts upgrade. Commercial-use terms for cloud Free not independently confirmed.

Free allowance

10,000 notifications/month; unlimited notification channels and team members; in-app feed, workflow branching, lists and broadcasts

Keep in mind

30-day premium-feature trial transitions to ongoing Free; SuprSend branding on in-app feed; multi-channel delivery counts each user/channel separately; email/SMS providers may charge separately; free over-limit sends may continue pending contact from SuprSend; explicit commercial-use terms not confirmed.

Free allowance

0.5 vCPU, 1 GB RAM and 5 GB persistent SSD shared by apps in a workspace; 200 GB traffic

Keep in mind

No guaranteed service level; one subscription covers every region, but phone/SMS verification is required once per account before dashboard/API access. Exceeding any free resource threshold makes the full workspace capacity billable, not just the excess; a payment method is required to deploy paid resources. Optional managed backups cost extra; commercial-use and idle-expiry terms should be confirmed.

Free allowance

20 GB delivery bandwidth/month; 3 GB DAM storage; 500 video units/month; 2 users; 500 purge requests/month

Keep in mind

Delivery stops at the monthly bandwidth cap; uploads stop at storage cap; no custom domain included; commercial-use terms and card requirement need confirmation.

Free allowance

25 credits per rolling 30 days shared across transformations, storage and bandwidth; 3 users

Keep in mind

1 credit equals 1,000 transformations OR 1 GB storage OR 1 GB delivery; combined usage counts toward 25-credit allowance. Exceeding limits may disable service after warnings.

Free allowance

Free AI chat on web and mobile; writing, web search, files and code capabilities with variable usage limits

Keep in mind

Message and model limits vary with demand and reset windows; Claude Code and higher limits require paid plan. Commercial-use permissions for Free need confirmation.

Free allowance

Free AI chat, web search and limited access to file uploads, image tools and data analysis

Keep in mind

Message and tool limits vary; higher usage and advanced capabilities require paid plans. Consumer Free is not an API credit tier.

Free allowance

Unlimited forms and submissions under fair-use guidelines; webhooks and file uploads up to 10 MB per file.

Keep in mind

Tally branding remains; custom domains, team collaboration and larger uploads require paid plans. Fair-use restrictions apply; commercial-use terms unconfirmed.

Free allowance

Free dynamic DNS subdomains under duckdns.org with IPv4/IPv6 updates using HTTPS.

Keep in mind

Hostname quota, payment-card requirements and commercial-use terms not confirmed; verify account limits before relying on the service.

Free allowance

5 GB Standard storage/month; 10,000 Class A (PUT/COPY/POST/LIST) and 100,000 Class B (GET/SELECT/other) requests/month; zero egress fees.

Keep in mind

Free storage covers Standard tier only. Usage beyond the allowance is billed; object notifications cost $0.01/1,000 events. Other storage tiers have separate retrieval fees or minimum retention periods.

Free allowance

Up to 2 public pages per organization; 100 subscribers, 25 components, 2 team members, 2 metrics; email/Slack/Teams notifications and rate-limited REST API

Keep in mind

Free plan is only for public status pages; private pages and custom domains require paid plans. Credit-card requirement and commercial-use terms not independently confirmed.

Free allowance

10,000 requests/month; 1 GB storage; 1 seat and 1 organization; 7-day data retention

Keep in mind

Free tier ingests up to 10 logs/minute; API access, alerts, and longer retention require paid plans. Homepage mentions a 7-day trial for premium features; card requirement and commercial-use rights for Hobby need confirmation.

Free allowance

5,000 error occurrences/month; 1,000 session replays/month; 30-day data retention; unlimited users and projects

Keep in mind

14-day Advanced trial is separate from the ongoing Free tier; 0 AI credits on Free; processing stops at the monthly limit by default.

Free allowance

5 projects; monthly limits: 200 Open Source tests, 100 Code tests, 300 IaC tests and 100 Container tests

Keep in mind

Designed for individual developers and small teams; private-repository scan quotas are enforced and recurring free-plan scans run weekly; commercial-use terms not explicitly confirmed.

Free allowance

1,000 monthly active users; 20 tenants; unlimited authorization queries; 3 environments; 25 roles

Keep in mind

Single deployment region; 14-day log retention; best-effort cloud uptime/support; enterprise compliance and SSO not included. Commercial-use terms not explicitly confirmed.

Free allowance

200,000 messages per day; 100 concurrent connections; standard support; hosted realtime pub/sub channels

Keep in mind

A published message and its deliveries to subscribed clients each count toward the daily quota. Sandbox is intended for prototypes and small production apps; no Sandbox SLA. Official signup credit-card requirement not confirmed.

Free allowance

10,000 notification sends/month; Journeys and broadcasts; SDKs, CLI and MCP server; Google and GitHub SSO

Keep in mind

Beyond the free monthly allowance, Business pricing is $0.005 per send; downstream email/SMS provider charges may apply. Credit-card requirement and explicit commercial-use terms for Developer not confirmed.

Free allowance

6,000 emails/month; 200 emails/day; up to 1,000 contacts; API, SMTP relay and event webhooks

Keep in mind

Free support is limited to the first month; daily cap applies and advanced features or removal of branding require a paid plan. Explicit commercial-use terms for Free are unconfirmed.

Free allowance

100,000 tool calls/month and 50,000 trigger events/month using your own OAuth app, API key or MCP; 3 team members; unlimited connected accounts; 1 million sandbox LLM tokens/month

Keep in mind

Composio-managed apps have smaller included allowances (20,000 tool calls and 10,000 trigger events/month); third-party provider and Instant Tool charges may apply separately; Hobby pauses at its usage cap. Commercial-use terms not independently confirmed.

Free allowance

5,000 billed visual-test snapshots/month (equivalent to up to 25,000 TurboSnaps); Chrome browser; unlimited projects, users and collaborators

Keep in mind

Visual review and testing pause at the monthly snapshot cap until reset or upgrade. Safari, Firefox and Edge testing require a paid plan; explicit commercial-use terms unconfirmed.

Free allowance

25 MB fully managed Memcached cache; 1 proxy server; 10 connections; basic analytics and 24/7 monitoring

Keep in mind

Developer tier is aimed at development; high availability, alerting and unlimited connections require paid plans. Free-signup card requirement and commercial production rights are unconfirmed; unauthorized resale is prohibited.

Free allowance

50 requests/day per public endpoint; 3 mock rules; 10 small CRUD objects; dynamic and conditional responses; ephemeral local tunnel

Keep in mind

Free endpoints are public, with no SLA. Unclaimed endpoints are automatically deleted (official pages differ between 7 and 30 days); claimed endpoints expire 90 days after creation. Do not send sensitive payloads.

Free allowance

One free Redis Cloud database per account; 30 MB memory; 30 concurrent connections; 5 GB monthly network bandwidth; up to 100 operations/second (1 KiB requests)

Keep in mind

Free Essentials is intended for learning and prototypes; shared deployment, best-effort SLA and community support. Network and throughput quotas apply; commercial production rights are not explicitly confirmed.

Free allowance

Free push notification delivery through Expo to FCM and APNs; 600 notifications/second per project; 100 notifications per API request

Keep in mind

Requires valid Expo push tokens and platform push credentials; no delivery SLA or guarantee of receipt on the device; Expo Go on Android requires a development build for remote push notifications. Commercial-use terms not independently confirmed.

Free allowance

2 users; 10 repositories; 2 container images; 1 domain; 1 cloud account; 10 AI AutoFixes/month; 250,000 protected requests/month

Keep in mind

Rescans every 3 days; premium PR security review, integrations, and extended coverage require paid tiers. Commercial-use terms not independently confirmed.

Free allowance

10,000 emails/month; mobile push and in-app messaging for up to 1,000 monthly active users; web push up to 10,000 subscribers per send.

Keep in mind

Free mobile MAU cap applies from October 2026; paid messaging and advanced features are separate.

Free allowance

100 screenshots/month (URL, HTML or Markdown to PNG/JPEG/WebP/PDF); 10 requests/minute, 1 render at a time

Keep in mind

Full-page captures have a lower maximum height and pixel density than paid plans. Failed renders and cache hits are not counted; paid overage is off by default.

Free allowance

Free Cloudflare-hosted, privacy-focused website analytics using a lightweight JavaScript beacon for page views and performance insights.

Keep in mind

Non-proxied sites have a 10-site limit; the Free plan has no configurable Web Analytics rules. Site owners remain responsible for applicable privacy and consent requirements.

Free allowance

No-cost standard Google Analytics 4 property for website and app event collection, reports, audiences, and explorations.

Keep in mind

Standard properties have configuration, reporting, and data-retention limits; sampling or thresholding may affect reports. Google Analytics 360 is a separate paid offering.

Free self-hosted software
Free allowance

Self-hosted Matomo web analytics software for visitor statistics, event tracking, and reporting; hosting is not included.

Keep in mind

You must provide server resources, database storage, updates, backups, and any required privacy controls. Some premium plugins and managed services cost extra.

Free allowance

Self-hosted Plausible Community Edition for lightweight website traffic and referral analytics; bring your own infrastructure.

Keep in mind

Community Edition differs from the paid hosted service; check supported features and license terms. You operate the database, backups, upgrades, and server.

Free self-hosted software
Free allowance

Self-hosted OpenPanel product and web analytics for tracking events, users, and usage trends on infrastructure you operate.

Keep in mind

No hosted ingestion, compute, or storage allowance is included. Database resources, retention, maintenance, and edition-specific features need review.

Free self-hosted software
Free allowance

Self-hosted GoatCounter website analytics for page views, referrals, and traffic insights without a managed subscription.

Keep in mind

You supply hosting and storage and maintain the deployment; public hosted plans and self-hosted software have different operating conditions.

Free self-hosted software
Free allowance

Self-hosted Uptime Kuma uptime monitoring and status pages for HTTP, TCP, ping, and other endpoint checks.

Keep in mind

Monitoring runs on your own server, which needs connectivity and maintenance. Alert delivery may require third-party channels, and uptime checks depend on the host being available.

Free self-hosted software
Free allowance

Self-hosted Beszel server monitoring dashboard with resource metrics collected by lightweight agents.

Keep in mind

Requires your own server and agents; provide network access, storage, updates, and backups. It is not a managed monitoring or alerting service.

Free self-hosted software
Free allowance

Self-hosted Glances system-monitoring software for CPU, memory, disks, network, and running processes.

Keep in mind

Install and run on your own machines; collection scope and remote access depend on your setup. Secure exposed endpoints and arrange any long-term storage yourself.

Free self-hosted software
Free allowance

Self-hosted Prometheus time-series metrics collection, scraping, querying, and alerting components.

Keep in mind

No managed ingestion or storage quota is supplied; retention and capacity depend on your hardware. You operate exporters, monitoring, backups, and alert delivery.

Free self-hosted software
Free allowance

Self-hosted Grafana OSS dashboards, visualizations, and alerting against supported data sources.

Keep in mind

Grafana OSS does not include Grafana Cloud usage quotas or hosted metric storage. Data sources, authentication, hosting, and any paid integrations are separate.

Free self-hosted software
Free allowance

Self-hosted Zabbix infrastructure monitoring with host agents, metrics, triggers, and alerting.

Keep in mind

Requires your own monitoring server, database, agents, maintenance, and storage. Paid vendor support is separate from the community software.

Free self-hosted software
Free allowance

Self-managed MinIO object-storage server software with an S3-compatible API; storage capacity comes from your own disks.

Keep in mind

No free vendor-hosted object storage is included. Confirm the current community distribution, licensing, maintenance status, and support before production use.

Free self-hosted software
Free allowance

Self-hosted Garage distributed, S3-compatible object storage for deployment across your own nodes.

Keep in mind

Free software is not free managed capacity; supply disks, network, backups, and operations. Check replication configuration, current project support, and license conditions.

Free self-hosted software
Free allowance

Self-hosted SeaweedFS distributed object/file storage with S3-compatible access and scalable volume servers.

Keep in mind

Supply hardware, disks, networking, backups, and operational support. Enterprise-only capabilities and managed infrastructure are not included in the community deployment.

Free self-hosted software
Free allowance

Self-hosted Immich photo and video library with mobile backup, timeline browsing, and media management.

Keep in mind

You provide compute and disk capacity; keep independent backups of originals and metadata. Check project maturity, updates, and optional paid support/licensing terms.

Free self-hosted software
Free allowance

Self-hosted PocketBase backend with an embedded database, authentication, file storage, and real-time subscriptions.

Keep in mind

Runs on your infrastructure rather than a hosted free quota. Plan for persistent disk, backups, security updates, and deployment/scale constraints.

Free self-hosted software
Free allowance

Self-managed SurrealDB database software supporting structured records, queries, and application data APIs.

Keep in mind

Free community deployment does not include hosted compute, storage, backups, or an SLA. Review edition features and licensing for your use case.

Free self-hosted software
Free allowance

Self-hosted NocoDB spreadsheet-style database interface and collaboration tools over supported data sources.

Keep in mind

Hosting, underlying database, storage, and operations are your responsibility. Check which collaboration and governance features require paid tiers.

Free self-hosted software
Free allowance

Self-hosted Directus data platform and API layer for SQL databases, content management, and admin interfaces.

Keep in mind

Your database and server costs are separate. Check Directus's current self-hosted licensing eligibility and enterprise feature restrictions before commercial deployment.

Free self-hosted software
Free allowance

Self-hosted ZITADEL identity platform supporting authentication, organizations, OAuth 2.0, and OpenID Connect.

Keep in mind

Requires deployment, database, backups, and operational management. Verify current community-versus-cloud feature and license conditions.

Free self-hosted software
Free allowance

Self-hosted Authelia authentication and authorization gateway for protecting applications with SSO and multi-factor authentication.

Keep in mind

Requires an identity backend, reverse-proxy integration, and ongoing security maintenance. Hosting and delivery of external MFA messages are separate.

Free self-hosted software
Free allowance

Self-hosted Meilisearch search engine for full-text indexing, filtering, and application search APIs.

Keep in mind

Index capacity, storage, and availability depend on your deployment. Hosted Meilisearch plans and enterprise features are separate.

Free self-hosted software
Free allowance

Self-hosted Typesense search engine offering text search, indexing, filters, and typo tolerance.

Keep in mind

You supply compute and persistent storage and handle cluster operations and backups. Typesense Cloud is a separate managed paid service.

Free self-hosted software
Free allowance

Self-hosted OpenSearch search and analytics engine, including indexing, querying, and dashboards.

Keep in mind

Cluster hardware, storage, security configuration, upgrades, and backups are your responsibility. Managed OpenSearch offerings incur separate costs.

Free self-hosted software
Free allowance

Self-hosted SearXNG metasearch engine that aggregates results from configured search engines.

Keep in mind

Results depend on external engines, which may rate-limit or block instances. Server operation, network access, and privacy controls are your responsibility.

Free self-hosted software
Free allowance

Self-hosted Unleash Open Source feature-flag management with gradual rollout and SDK integration.

Keep in mind

You run the flag server and data store. Check the open-source edition's feature limits; enterprise hosting, governance, and support may require payment.

Free allowance

OpenFeature provides free, vendor-neutral SDKs and an API specification for evaluating feature flags in applications.

Keep in mind

OpenFeature is a specification and SDK ecosystem, not a hosted flag-management service. You still need a provider and flag backend; their hosting and licensing may incur costs.

Free allowance

Free static site hosting from GitLab repositories; custom domains and TLS; GitLab.com Free includes 400 CI/CD compute minutes/month and 10 GiB project storage.

Keep in mind

Static sites only (no server-side PHP/ASP); GitLab CI/CD pipeline and runner required. Shared Free compute and storage quotas apply. Check project visibility and Pages access controls.

Free allowance

10,000 security requests/month after the 15-day trial; SDK-based protection for web and AI-agent requests

Keep in mind

The initial 15-day trial transitions to a capped ongoing Free plan. The current pricing page highlights paid Individual/Startup tiers; Free feature entitlements, card requirements and commercial-use rights are not separately specified. Do not assume paid-plan features or that usage above the cap is free.

Free allowance

Free web and mobile AI assistant with access to Mistral models, limited chat messages and web searches, limited coding sessions, basic image generation/editing, and 100+ connectors; usage allowances are not published as fixed numeric quotas.

Keep in mind

Free usage is rate-limited and subject to fair-use restrictions. Higher chat, search, image and coding limits require paid plans. Model training and commercial-use conditions should be reviewed before submitting sensitive or client data.

Free allowance

Free and open-source (MIT) command-line orchestrator for AI coding agents, repeatable workflows, and receipt-backed repository changes; unlimited local use for any number of projects.

Keep in mind

Runs locally in a terminal rather than as a hosted service: requires Node.js 20.10+, Git, and your own model provider or API key; no cloud dashboard, team plan, or hosted tier.

Free allowance

1 million Amazon SQS requests per month free across eligible AWS regions; recurring monthly allowance for all customers

Keep in mind

Requests above the free monthly quota incur charges; data transfer and AWS KMS encryption may cost extra. Unused requests do not roll over. AWS signup payment-method requirements vary by account type and location.

Free allowance

5 GB website storage, PHP 8.4, MySQL/MariaDB, free SSL, custom domains and free subdomains; no ads or card required.

Keep in mind

Website hosting only; not a general-purpose VPS. Sites must receive occasional visits to remain active. No bulk mail, file distribution, or hosting resale; resource limits and backup responsibility apply.

Free allowance

1 million Lambda Functions requests and 400,000 GB-seconds of on-demand compute per month across x86 and Arm, available on AWS Free and Paid plans.

Keep in mind

AWS Lambda Functions on-demand free allowance does not cover all Lambda modes or related AWS services. Usage above the monthly quotas and other AWS products can incur charges. Payment card requirement varies by AWS account enrollment.

Free allowance

1 DNS zone, 50 DNS records, 500,000 monthly DNS queries, 4 unicast DNS servers, 1 mail forward and 1 Dynamic DNS hostname.

Keep in mind

Only unicast nameservers are included. Anycast, DNSSEC, DNS failover and higher quotas are paid features. Commercial-use rights and card requirements for permanent Free DNS need confirmation.

Free allowance

Free authoritative DNS hosting with automatic DNSSEC and REST API; one dedyn.io hostname per account; bring-your-own domains subject to per-account quota; authenticated API limited to 2,000 requests/day.

Keep in mind

No domain registration or commercial SLA. Domain creation is quota-controlled, and DNS record writes have per-domain rate limits (300/day); paid third-party domain registration may be needed. Commercial-use terms not independently confirmed.

Free allowance

First 10 GB of B2 object storage always free; free egress up to 3x average monthly stored bytes; Class A, B and C API transactions free.

Keep in mind

Storage beyond 10 GB is billed at $6.95/TB/month; non-partner egress beyond 3x average storage is $0.01/GB. Class D events exceed free 2,500/day at $0.004 per 10,000. Set spending safeguards before adding payment details; explicit commercial use rights for the free allowance are not separately stated.

Free allowance

1 million executions and 400,000 GB-seconds of resource consumption per month per subscription on the Consumption plan.

Keep in mind

Free grant applies only to paid Consumption subscriptions. The required storage account, network usage, monitoring and other Azure resources can be billed separately. Over-quota use is billed; a payment card is normally required at Azure signup. Linux Consumption hosting retires September 2028.

Free allowance

Free web and mobile AI chat for writing, brainstorming, summaries and real-time web answers; Edge page insights. Personal-account sign-in adds chat history, image creation and longer conversations. Free usage is capacity-limited, with no fixed public message quota.

Keep in mind

Usage limits, features and regional availability vary; Microsoft 365 business Copilot, in-app Office integrations and paid subscriptions are separate. Consumer Free commercial-use rights are not independently confirmed.

Free allowance

Up to 5 users and 100 machines on the hosted Free plan; peer-to-peer encrypted connections, access controls, private DNS and network routes.

Keep in mind

Free Cloud is limited to 5 users and 100 machines; paid Team/Business and self-hosted commercial-license features are separate. Payment-card requirement and explicit commercial-use terms need confirmation.

Free allowance

Rate-limited free inference API; for openai/gpt-oss-120b: 30 requests/minute, 1,000 requests/day, 8,000 tokens/minute and 200,000 tokens/day; limits vary by model and organization.

Keep in mind

Free limits vary by model and organization; exceeding quota returns HTTP 429. Batch/Flex and higher rate limits require paid Developer tier. Check model-specific commercial-use terms.

Free allowance

5 GB transfer per rolling 24 hours; 25 environments; 50 share backends; 50 private access frontends; public HTTPS and private sharing.

Keep in mind

Exceeding daily transfer suspends shares until usage falls below the limit. Public shares have 2,000 requests/IP and 7,500 requests/share per 5 minutes; free no-card accounts show an anti-phishing interstitial. Production SLAs and custom limits require commercial arrangements.

Free allowance

Free authoritative DNS hosting with no published zone-count limit; A, AAAA, CAA, CNAME, MX, SRV, TXT, SSHFP and TLSA records, DNSSEC, Dynamic DNS and web redirects.

Keep in mind

DNS hosting only; domain registration and website hosting are separate. Provider offers the free DNS service without guarantees or SLA. PTR/reverse zones and a Let's Encrypt API are not currently offered.

Free allowance

Free private AI chat with six available models and a recurring daily usage allowance; provider does not publish a fixed message or token quota.

Keep in mind

Daily free usage cap varies by model and anonymous abuse controls; higher limits and advanced models require a subscription. Model-provider usage policies apply; commercial-use eligibility is not explicitly confirmed.

Free allowance

7,500 monthly active users; 100 concurrent server connections; 2 projects; unlimited flags, environments and seats; 30-day audit log.

Keep in mind

Free tier has soft MAU and connection limits; the provider warns rather than immediately disabling flag evaluations. Advanced features including segments, change approvals, and several roadmap items require paid tiers or are not yet available.

Free allowance

$5 in recurring Search API credits/month, equivalent to 1,000 web search requests at $5 per 1,000 requests; up to 50 requests/second.

Keep in mind

No standalone free plan. A payment card is required for identity verification (temporary $0/$1 authorization). Set prepaid balance to $0 and disable auto-reload / set usage limits to avoid charges. Unused free credits do not roll over. Attribution is required to receive free credits; storing API result data is prohibited without separate agreement. Commercial-use terms require review.

Free allowance

Up to 5 users, 50 Resources, 10 Remote Networks and 5 devices per user; secure remote access with split tunneling and conditional access.

Keep in mind

Starter has community support only and limited advanced access controls; premium identity, service accounts and device posture features require paid plans. Verify payment-card requirements during signup. The separate startup Enterprise promotion is time-limited and is not this free tier.

Free allowance

150 webhooks/month; 1 input; 2 destinations; 0 bidirectional tunnels; MCP access

Keep in mind

Each received webhook counts toward quota; forwarding to multiple destinations counts separately. Free buckets suspend on quota exhaustion. Free plan is positioned for individual developers and home automation; commercial-use permission not independently confirmed.

Free allowance

50 requests per rolling 24 hours; unlimited permanent endpoints for signed-in accounts; 7-day request retention; CLI, SDK, MCP and replay

Keep in mind

Guest endpoints expire after 12 hours and allow only 25 requests; sign in for permanent Free endpoints. Requests over quota return HTTP 429; commercial-use terms not independently confirmed.

Free allowance

1 GB storage; 200 GB bandwidth; free neocities.org subdomain with HTTPS

Keep in mind

Static HTML/CSS/JS only. Custom domains, multiple sites, WebDAV and hotlinking are Supporter features; prohibited SEO-spam/fraud and third-party site generation restrictions apply. Commercial business sites are allowed under the AUP.

Free allowance

1 active site; 3 MB per-project upload (0.5 MB PDFs); 3 uploads/day; 5,000 visits and 5 GB bandwidth/month

Keep in mind

Log in at least once every 3 months to keep the site online. Free sites display a Tiiny Host banner; custom domains, API, analytics and larger uploads require paid plans. Commercial-use terms on Free are not explicitly confirmed.

Free allowance

4 free hostnames, 4 own-domain hostnames, 4 subdomains, 4 custom DNS records and 4 web redirects; unlimited DNS queries; dynamic DNS updates

Keep in mind

Free account does not expire and requires no credit card. DNSSEC, HTTPS redirects, expanded hostnames/records and premium features require paid membership; own domains must be registered separately. Commercial-use permission for Free is not explicitly confirmed.

Free allowance

Free self-hosted Community Edition with core web analytics, custom events, funnels, performance monitoring and error tracking; no vendor-imposed hosted event quota; infrastructure is self-provided.

Keep in mind

Self-hosting requires Docker, Redis and ClickHouse; at least 2 GB RAM recommended. AGPL-3.0 license obligations apply, including network-use source sharing where required. Swetrix Cloud has no ongoing free plan (14-day card-required trial only).

Free allowance

1,000,000 requests/month; 20 GiB egress/month; 10 active CPU hours/month; 150 GiB-hours memory/month; 1 GiB KV storage; 5 custom domains; up to 10 active apps

Keep in mind

The full published Free allowance requires organization verification with a credit card; unverified organizations have restricted Free limits. Free apps pause when request/bandwidth/CPU/memory allowance is exceeded. This is new Deno Deploy, not discontinued Deploy Classic. Commercial eligibility of the Free plan needs provider confirmation.

Free self-hosted software
Free allowance

Free MIT-licensed self-hosted website analytics; no vendor-imposed limits on tracked sites, pageviews or events.

Keep in mind

Self-hosted only; requires Node.js and MongoDB. Hosting, storage, backups and maintenance may incur infrastructure costs. No managed free SaaS tier.

Free allowance

Free Apache-2.0-licensed self-hosted analytics; multiple websites per instance, no vendor-imposed pageview quota; built-in 6-month data retention.

Keep in mind

Self-hosted infrastructure and maintenance costs apply. Requires visitor opt-in; first-party cookies used. Original source is Apache-2.0, but the Offen icon/logo have CC-BY-NC-ND-4.0 restrictions; check branding rights for commercial deployments.

Free allowance

500 uploads/month; 1 GB managed storage; 1 GB delivery bandwidth; 1,000 transformations; 1 workflow; 1 team member; 20 MB maximum file size.

Keep in mind

Free plan has community support only. Upload count resets monthly; other allowance reset periods are not explicitly confirmed. Premium OCR, AI and enhancement add-ons are paid; overage fees may apply. Explicit commercial-use rights on the Free plan require confirmation.

Free allowance

25,000 spans/month; up to 10 team members; 60-day data retention; agent tracing, evaluation suites and playground.

Keep in mind

Cloud data region is US. Additional spans are not included on Free; Pro Cloud is paid. Commercial-use terms for hosted Free are not explicitly confirmed; Ollie coding harness trial is separate from the ongoing Opik Free Cloud allowance.

Free allowance

1 Python web app with 1 web worker, 512 MiB disk, 100 CPU-seconds/day for consoles, and 2 consoles; web app expires after 1 month unless renewed.

Keep in mind

Free web app uses a pythonanywhere.com subdomain; restricted outbound HTTP(S) allowlist; no SSH, scheduled tasks or MySQL for new accounts. Renew the web app monthly. No paid-tier features included.

Free allowance

1 GB disk, 5 GB monthly bandwidth, 1 hosted domain and 3 subdomains, PHP and 1 MySQL database (30 MB); ad-free hosting.

Keep in mind

One free account per user; outbound connections and hotlinking disabled; 15 MB file upload limit, 25,000 inodes, restricted file types. Free hosting renews annually on human login and may be disabled for inactivity; provider recommends paid hosting for business websites.

Free allowance

1,000 credits/month; up to 5 users; unlimited flows; cloud-hosted automation, agents, tables, MCP and API access

Keep in mind

AI model steps use additional credits (2/10/20 per model tier); free quota pauses runs until credits refresh. Official pricing page inconsistently states daily vs monthly reset; verify reset timing. Cloud Free is distinct from self-hosted Community Edition; commercial-use terms not explicitly confirmed.

Free allowance

Up to 1,000,000 monthly active users for AuthKit user management and authentication, including email/password, social sign-in, passkeys and MFA.

Keep in mind

A payment card is required before using a production environment; staging can be tested without a card. Enterprise SSO and Directory Sync cost from $125 per connection/month, custom domains $99/month, and each additional 1 million MAUs $2,500/month. Avoid paid features and overages.

Free allowance

Up to 5 free MySQL-compatible instances per organization; each includes 5 GiB row storage, 5 GiB columnar storage and 50 million Request Units per month.

Keep in mind

Free allowance applies separately to each of the first five eligible instances; at quota, new connections are blocked and existing sessions throttled until reset. Enabling paid overages or adding instances requires a credit card and spending limit. PostgreSQL-compatible public-preview quota is separate and not included. Commercial-use terms not independently confirmed.

Free allowance

25 HTTP/API uptime monitors with 5-minute checks; 7-day uptime history; email alerts and hosted status pages.

Keep in mind

Free tier uses uptimesignal.io subdomains; custom domains, 1-minute checks and longer history require Pro. Official product pages disagree about whether Free includes one or unlimited status pages and about extra alert channels; verify in account before relying on them. Commercial use explicitly permitted.

Free allowance

Free MIT-licensed local-first API client and CLI for HTTP/REST, GraphQL and gRPC; unlimited collection runs, 2 workspaces, 5 OpenAPI syncs/month; API testing, scripting and local Git-friendly collections.

Keep in mind

Desktop/CLI software, not a hosted API service; no cloud sync or provider-hosted usage allowance. Advanced in-app Git actions, private Git-provider integration, unlimited workspaces and premium support require paid plans. Follow MIT license notices; external API and CI infrastructure costs are separate.

Free allowance

3 simultaneous HTTPS/WebSocket tunnels per IP; random URLs or SSH-key-bound stable URLs without signup; tunnels close after 2 hours idle or 24 hours maximum.

Keep in mind

Free tunnels show a browser safety warning; 50 requests/second per tunnel (burst 400), 25 requests/second per visitor (burst 200). Stable URLs require an SSH key; chosen subdomain names and unlimited session duration require Pro. Hosted free-tier commercial-use permission not explicitly confirmed.

Free allowance

Up to 5 active users; 10 concurrent jobs; 2,000 Linux vCPU-minutes/month on Small hosted agents; 250,000 test executions/month; 50 GB artifact storage and 250 GB artifact downloads/month.

Keep in mind

Starts with a 30-day all-access trial; select the ongoing $0 Free plan afterward. Linux Small only on Free; 30-day build/artifact retention; self-hosted agents consume your own infrastructure. Commercial-use permission for Free not explicitly stated.

Free allowance

10 million Compute requests and 100 million Compute vCPU milliseconds per month, included at no charge in the recurring free tier.

Keep in mind

Usage beyond either free allowance is billed automatically at published usage-based rates; Fastly signup requires a credit card for verification. Other products, data transfer and optional features may incur charges. Legacy pre-2026-03-31 Compute development trials are separate; confirm production and commercial-use terms before deployment.

Free allowance

Free authoritative DNS for domains registered with other registrars; up to 150 DNS records per domain; Dynamic DNS, email forwarding and URL forwarding.

Keep in mind

Requires an existing third-party domain; domain registration is not included. Verify domain ownership and configure FreeDNS nameservers within 10 days. DNSSEC and premium SLA require PremiumDNS. Payment-card and commercial-use terms are not explicitly confirmed.

Free allowance

Free AI chat with limited messages, Max-model usage and image generations; 1 Project; signed-in Free chat history retained for 7 days. No fixed numeric message quota published.

Keep in mind

Proton account required for saved Free-plan chats; guest chat works without signup but has tighter limits. Free usage caps are not numerically published. Lumo Plus and Lumo for Business are paid; commercial use of Free is not explicitly confirmed. Automated or bulk account creation is prohibited.

Free allowance

1,000 API credits per month for Search, Extract, Crawl, Map and other supported API operations; credits reset on the first day of each month.

Keep in mind

Credits are shared across API operations and consumption varies by endpoint/depth. Free requests stop when credits are exhausted until the monthly reset; higher usage requires paid billing. Commercial-use rights for the free tier require confirmation.

Free self-hosted software
Free allowance

Free self-hosted open-source full-text, vector and hybrid search engine; no vendor-enforced query, document or seat quota for the open-source distribution.

Keep in mind

You provide and pay for compute, storage, backups, monitoring and operations. GPLv3-or-later obligations apply when redistributing covered software; managed cloud services and paid support are separate.

Free allowance

25,000 trace spans/month; 1 GB ingestion/month; 15-day retention; unlimited users and evaluations; Signal 10 issues/month.

Keep in mind

SaaS Free tier has span and ingestion quotas, short retention, one space and community support. Paid Pro starts at $50/month for higher limits; hosted Free commercial-use terms require confirmation.

Free allowance

10,000 webhook deliveries/month; 1 project, 2 endpoints; 3-day retention; up to 25 publishes/second.

Keep in mind

Deliveries are counted per destination; fan-out to multiple endpoints consumes multiple deliveries. Payload usage is metered in 64 KB units. Free quota is a hard cap (publishing rejected, not billed). Hosted only; no published uptime SLA; commercial-use terms unconfirmed.

Free allowance

Free static website hosting from public Codeberg repositories; user, organization and per-repository sites on codeberg.page; custom domains supported.

Keep in mind

Codeberg is intended for free/libre software and freely licensed content; proprietary/commercial site eligibility requires provider-policy review. Repository storage guidance is 750 MiB Git and 100 MiB total non-promoted content; larger usage may require an exception. Pages migrated to git-pages; legacy v2 is unavailable to new users. Static sites only; deployment uses repository webhooks or Forgejo Actions.

Free allowance

Unlimited static projects and publishes; free surge.sh subdomains, custom domains and managed SSL certificates; static CDN hosting.

Keep in mind

Static HTML/CSS/JavaScript only; no backend runtime. Custom redirects, CORS controls, password protection and user-supplied SSL certificates require paid Surge Professional. Traffic/abuse policies and commercial-use rights require confirmation; custom domain registration itself is not included.

Free allowance

10 feature flags; 2 environments; 2 products; 5 million config JSON downloads/month; 20 GB network traffic/month; unlimited seats, service connections, MAUs and local flag evaluations.

Keep in mind

Free plan caps flags, environments, products, targeting rules and monthly CDN downloads/traffic; higher limits and advanced governance require paid plans. ConfigCat counts config JSON downloads rather than individual flag evaluations; commercial-use eligibility is not explicitly confirmed.

Free allowance

2 million metered events/month; unlimited feature flag and config checks; 50,000 session replays/month; unlimited seats.

Keep in mind

Developer has 1-year analytics retention and 30-day session replay retention; advanced approvals and higher quotas require Pro. Above 2M events, metric-lift computations stop while gate/config targeting continues; upgrading requires a card. Hosted commercial-use terms not independently confirmed.

Free self-hosted software
Free allowance

Apache-2.0 open-source, self-hosted S3-compatible object storage; no vendor-enforced monthly storage or request quota (capacity depends on your own infrastructure).

Keep in mind

Not a free managed cloud storage tier: servers, disks, bandwidth, backups, TLS, operations and support cost extra. Use Linux for production, replace default credentials before network exposure, and verify S3 feature compatibility and Apache-2.0 obligations.

Free allowance

1 GB total storage; 500 files; 10 GB gateway bandwidth/month; 10,000 gateway requests/month; 1 gateway.

Keep in mind

Storage and file caps are total limits, while gateway bandwidth and requests reset monthly. Additional capacity, private files and advanced gateway features require paid plans. Free signup card requirement and hosted commercial-use terms are not independently confirmed.

Free allowance

Up to 5 hosted apps; 512 MB RAM shared across apps; 10 GB storage; 1 managed PostgreSQL, MariaDB or Redis database; free blitz.cloud subdomains with HTTPS.

Keep in mind

Apps sleep after 30 minutes idle and wake on browser visits; webhooks/scheduled tasks cannot reliably wake them. Free excludes custom domains, search indexing and app-file backups. Background workers stop after 2 days without account activity. Provider may end Free with 14 days notice during startup phase through 31 March 2027; explicit Free commercial-use permission is unconfirmed.

Free self-hosted software
Free allowance

Free Apache-2.0 self-hosted web and product analytics with pageviews, real-time dashboards, custom events and funnels; no vendor-hosted monthly quota.

Keep in mind

Self-hosted only: operator pays for servers, database, updates, security and maintenance. Managed Litlyx Cloud pricing and free trials are separate, not an ongoing hosted free tier; Apache-2.0 license terms apply.

Free allowance

First 1,000,000 billable operations per month per Google Cloud billing account; HTTP task queue API calls and push delivery attempts (32 KB operation units).

Keep in mind

Active Google Cloud billing account and valid payment method required; operations over 1 million/month cost $0.40 per million, 32 KB chunking and retries count, and HTTP target network/compute can incur separate charges.

Free allowance

500 queued or scheduled HTTP requests per month free forever; unlimited jobs; 1 developer; 30-day log retention.

Keep in mind

Requests beyond the free allowance are listed at $20 per 100,000; spending cap can limit charges. Card requirement for free signup and commercial production rights are not explicitly confirmed; Developer is positioned for development.

Free self-hosted software
Free allowance

Free MIT-licensed self-hosted distributed relational database built on SQLite, with HTTP/JSON API, Raft replication and high availability; no vendor-enforced database, query or monthly usage quota.

Keep in mind

Self-hosted software, not a managed free database: compute, disk, network, backups and operations are your responsibility. Multi-node high availability needs quorum; no hosted SLA. Preserve MIT copyright and license notices.

Free self-hosted software
Free allowance

Apache-2.0 open-source self-hosted IAM/SSO; no per-user or monthly-active-user software fee; OAuth 2.0, OIDC, SAML, CAS, LDAP and MFA supported.

Keep in mind

Self-hosted only: operate and secure your own servers, database, upgrades, backups and identity integrations; hosting, SMS/email and infrastructure may cost extra. Casdoor Cloud is paid after its time-limited trial/credit; do not confuse with the perpetual self-hosted edition.

Free allowance

Free Apache-2.0 single-node and cluster self-hosted metrics monitoring and time-series storage, with no vendor-enforced monthly ingestion, host, or seat quota.

Keep in mind

Self-hosting requires your own compute, disk, backups, security and operations. Enterprise-only features, managed VictoriaMetrics Cloud and support are paid; Cloud's 30-day trial is not a free plan.

Free allowance

Unlimited local mock API servers, routes and requests using the free desktop app, CLI or Docker image; OpenAPI import/export and CI integration.

Keep in mind

Local-first MIT-licensed edition; infrastructure for remote deployment is self-funded. Real-time team collaboration, centralized administration, managed deployments and browser workspace require paid Mockoon Pro; its 14-day trial is not the free edition.

Free self-hosted software
Free allowance

Free MIT-licensed Jenkins core; self-hosted CI/CD pipelines, jobs and agents without vendor-imposed monthly build limits; capacity depends on your infrastructure.

Keep in mind

Requires self-managed controller, build agents, Java, security updates and infrastructure costs. Third-party plugins may use different open-source licenses; no managed compute or SLA included.

Free self-hosted software
Free allowance

Apache-2.0 open-source frps/frpc reverse proxy for self-hosted TCP, UDP, HTTP and HTTPS tunnels; no vendor-imposed monthly tunnel, request or bandwidth quota.

Keep in mind

Requires your own publicly reachable server/VPS, connectivity and secure authentication; hosting, domain and bandwidth costs are not included. No managed free tunnel, hosted SLA or bundled infrastructure.

Free allowance

3,000 atoms per month across the API catalog; 5 requests/second; 1 API key; 1 team member; MCP access.

Keep in mind

Atoms are not equivalent to API calls; each endpoint may consume a different amount. Traffic stops at the included quota unless upgraded or topped up; upstream API licenses and commercial rights vary, and Free has no paid-plan SLA.

Free allowance

500 transactional emails per month (up to 100 emails/day); 100 API requests/day; 1 sending domain, 1 API token, 1 webhook and 1 template.

Keep in mind

A credit card and account approval are required to activate Free, although the plan is $0. Sending pauses at the quota until reset; 14-day Professional trial is separate and downgrades to Free. Hosted Free commercial-use conditions require confirmation.

Free allowance

Free IPv4/IPv6 dynamic DNS hostname or delegated own domain, with DNS record management and REST/DynDNS/SSH/TSIG update APIs; no numeric zone or query allowance published.

Keep in mind

No SLA or enterprise DDoS protection; unsuitable for critical services. Inactive accounts may be deleted, excessive API requests throttled, and the free service may change or end without guarantee. Commercial-use terms are not explicitly confirmed.

Free allowance

180,000 vCPU-seconds, 360,000 GiB-seconds and 2 million HTTP requests per Azure subscription per calendar month on the Consumption plan.

Keep in mind

Requires an Azure subscription and a supported payment method for standard signup; usage above monthly grants is billed. Idle replicas, networking, logs and other Azure services may incur charges. Set minimum replicas to zero to avoid idle compute charges; dedicated plans are separate.

Free allowance

100 notebooks per user and 50 sources per notebook; free source-grounded AI chat and notebook outputs with compute-based usage limits refreshing every five hours.

Keep in mind

Formerly NotebookLM. Generation quotas vary by task complexity, chat length, source count and feature; higher limits and some advanced tools require paid Google AI/Workspace plans. Regional availability, output watermarks and commercial-use terms should be checked.

Free allowance

250 successful searches per month across supported search APIs; maximum 50 successful searches per hour.

Keep in mind

Free tier is rate-limited; cached, errored and failed searches are not charged. Commercial use of the Free plan is not confirmed; SerpApi historically described a non-commercial Free plan, so verify current terms before production use. Higher quotas require paid plans.

Free allowance

25+ free models with chat and API access; 50 free-model requests/day and 20 requests/minute without purchased credits; up to 5 workspaces.

Keep in mind

Free model availability and provider routing may change; failed requests count toward daily cap. Buying at least $10 credits raises free-model allowance to 1,000 requests/day. Free endpoints may retain prompts; commercial rights and output licenses depend on each underlying model/provider; no SLA.

Free allowance

50,000 events/month; 2 users; 14-day data access; 3 scenarios, 3 simulations and 3 custom evals.

Keep in mind

Each LLM call, tool call, retrieval, evaluation or simulation step counts as an event. Developer has limited retention and evaluation quotas; paid Growth adds capacity. Commercial-use rights for hosted Developer require confirmation.

Free allowance

Apache-2.0 open-source outbound webhook and event-destination server, self-hosted with no vendor-enforced monthly event, delivery, tenant, or user quota; supports HTTP webhooks, queue/bus destinations, retries, fan-out and a customer portal.

Keep in mind

Self-hosted software, not Hookdeck's paid managed Outpost or the separate hosted Event Gateway Free plan. Requires your own compute, Redis, PostgreSQL, supported message queue, security, backups and operations; third-party destination services may charge. Apache-2.0 attribution applies; provider logos and trademarks are excluded.

Free allowance

10 active hosted links/sites on a free account; up to 25 MB per file or uploaded site ZIP; 2 API keys at 20 requests/minute; no visitor cap; hosted HTML and ZIP sites stay live until deleted.

Keep in mind

A free account is required for permanent links; anonymous uploads expire after 7 days. Static HTML/CSS/JS hosting only, no server-side runtime. Custom domains and password protection require Pro; default site URLs may request no search indexing. Free is marketed for personal files, so commercial-use rights require confirmation.

Free allowance

MIT-licensed self-hosted feature flag system with unlimited feature flags and no vendor-imposed seat, evaluation or monthly request limits; OpenFeature SDKs and stateless relay proxy.

Keep in mind

Self-host and maintain the relay proxy, configuration storage and any supporting infrastructure; hosting, monitoring and maintenance costs are not included. Dedicated enterprise support and security-response SLA are paid separately.

Free allowance

5 GB NVMe storage; unmetered bandwidth subject to fair use; PHP 8.3 and MySQL 8; free SSL for provider subdomains; custom domains and up to 10 MB file uploads.

Keep in mind

Free hosting is intended for personal sites and experiments. No uptime SLA; high resource use, bulk email, proxy services and download/file-sharing hosting are prohibited. Three free accounts maximum per person; users must maintain their own backups. Commercial-use eligibility is not explicit.

Free self-hosted software
Free allowance

BSD-3-Clause open-source in-memory key/value datastore for standalone or clustered self-hosting; no vendor-imposed instance, request, or storage quota.

Keep in mind

You must provision and secure your own servers, memory, storage, backups and operations; no hosted free instance or managed SLA is included.

Free self-hosted software
Free allowance

Free, open-source distributed object, block, and file storage on self-managed hardware; no vendor-imposed storage, request, or user quota.

Keep in mind

No managed storage capacity, hosting, or SLA is included. Supply and operate disks, servers, network, backups, monitoring and security; comply with LGPL 2.1/3.0 and bundled component licenses.

Free allowance

Free-forever Apache-2.0 self-hosted policy decision point with YAML authorization policies, decision APIs, audit logs and Git/disk/cloud/DB policy storage; no vendor-enforced monthly decision or user quota.

Keep in mind

Requires your own hosting, security updates and operations. Cerbos Hub PoC has separate hosted limits (100 monthly active principals); Hub collaboration, managed policy delivery, enterprise features and support are not included.

Free self-hosted software
Free allowance

Apache-2.0 open-source distributed tracing backend with collector, query API and UI; self-hosted deployments have no vendor-imposed monthly trace, user or instance quota.

Keep in mind

Provide and operate your own compute, storage backend, backups and security. Default all-in-one in-memory storage loses traces on restart and is for development; production needs durable storage and appropriate scaling. No hosted free tracing service or managed SLA is included.

Free self-hosted software
Free allowance

Free AGPL-3.0 self-hosted web and product analytics with pageviews, custom events, funnels and session replays; no vendor-imposed monthly event or pageview quota.

Keep in mind

Requires your own VPS (2 GB RAM or more recommended), domain with HTTPS, Docker, PostgreSQL and ClickHouse; hosting, backups and maintenance are not included. AGPL-3.0 obligations apply; optional anonymous instance telemetry can be disabled. Rybbit Cloud offers a 7-day trial, NOT an ongoing free cloud plan.

Free allowance

Self-hosted RabbitMQ message broker under MPL-2.0, with queues, streams, AMQP messaging and no vendor-imposed message, queue or connection quotas.

Keep in mind

You supply servers, storage, backups, monitoring and upgrades; capacity is infrastructure-dependent. Community security patches and support are limited to currently supported release series; extended lifecycle and 24/7 vendor support require commercial Tanzu RabbitMQ. Distinct from CloudAMQP's managed Little Lemur tier.

Free allowance

Free Linux container VPS with root access: 1 vCPU at 1 GHz, 1 GB RAM, 10 GB HDD, 1 IPv6 /128 and 1 TB traffic per month.

Keep in mind

IPv6-only (no included IPv4); connection throttled to 1 Mbit/s after 1 TB/month. One-month contract requires manual renewal; account verification and capacity/order availability apply. Paid IPv4, extras and licensed operating systems may cost money. Card and commercial-use terms not explicitly confirmed.

Free self-hosted software
Free allowance

Free Apache-2.0 CI/CD server and agents for self-hosted container-based pipelines; no vendor-imposed per-user, per-repository or build-minute quotas.

Keep in mind

Requires your own server, build agents, Docker-compatible execution infrastructure and Git forge integration; infrastructure, maintenance and any third-party services are not included.

Free self-hosted software
Free allowance

MIT-licensed self-hosted TCP tunnel client and server; no vendor-imposed tunnel count, bandwidth or session quotas on your own server.

Keep in mind

Requires your own publicly reachable server and infrastructure. TCP traffic is NOT encrypted by default (the optional shared secret authenticates only the handshake); use TLS or a VPN for sensitive traffic. No built-in HTTPS or HTTP hostname routing; public bore.pub relay is a separate best-effort service.

Free allowance

Free open-source Apache-2.0 Community Edition for self-hosted CI/CD; run jobs on own infrastructure and agents; no vendor-hosted build-minute allowance.

Keep in mind

Requires self-hosting and infrastructure/agent costs; Community Edition lacks paid Enterprise features. No vendor-managed hosting included.

Free allowance

$30/month recurring compute credit for CPU, memory and GPU workloads; up to 3 workspace seats, 100 containers, 10 concurrent GPUs, 5 scheduled crons and 1 TiB/month included network egress.

Keep in mind

Starter is $0/month plus metered usage: compute above $30/month and services outside the compute credit (including Shared Endpoints tokens) incur charges. Configure a workspace budget to control spending. Card requirement and unrestricted commercial use on Starter need confirmation.

Free allowance

Free public recursive DNS resolver with malware/phishing blocking, DNSSEC validation, DNS-over-HTTPS and DNS-over-TLS; no account or published monthly query quota for ordinary use.

Keep in mind

Recursive DNS only: does not host authoritative DNS zones or provide CDN. ISPs, service providers and other large organizations should contact Quad9 before sending large-scale DNS traffic; no business SLA or per-domain DNS management.

Free self-hosted software
Free allowance

MIT-licensed self-hosted multi-provider AI chat and agent interface, with Docker Compose deployment and no vendor-imposed seat, message, or monthly usage quota for the self-hosted software.

Keep in mind

Operator supplies server/container resources and model access; paid model API usage, third-party services and hosting may incur costs. LibreChat does not bundle free model API credits; self-hosted setup requires MongoDB and other services.

Free self-hosted software
Free allowance

Apache-2.0 open-source search engine; no vendor-imposed search, indexing, or storage quotas for self-hosted software.

Keep in mind

Operator supplies and pays for servers, object storage, backups and operations; officially supported on Linux; Quickwit targets log/observability search, not managed hosted search.

Free self-hosted software
Free allowance

Apache-2.0 open-source LLM inference and serving engine; unlimited self-hosted inference subject to own hardware capacity; no vendor-hosted free compute included.

Keep in mind

Requires own compute (typically supported GPU or CPU build), storage and model weights. Infrastructure and model downloads may cost money; each model has separate license and commercial-use restrictions; no free hosted API credits.

Free allowance

MIT-licensed self-hosted webhook relay for development and testing; no software subscription or vendor-imposed usage quota; optional public hosted development channels.

Keep in mind

Development/testing only: not designed for production; channels are unauthenticated and anyone with the URL can inspect webhook payloads. Self-hosting and optional Redis/infrastructure incur costs; messages are forwarded to connected clients, not durably queued.

Free self-hosted software
Free allowance

Free forever self-hosted PaaS with unlimited app, database and service deployments, connected servers and team members; all software features included.

Keep in mind

Requires your own server/VPS and payment for infrastructure, storage, network and third-party services. Managed Coolify Cloud is paid; Apache-2.0 license applies to self-hosted software.

Free allowance

Up to 3 static-site-only apps at $0/month; 1 GiB outbound transfer per app/month, automatic HTTPS, custom domains and CDN.

Keep in mind

Static components only; additional static-only apps cost $3/month and outbound transfer above 1 GiB/app costs $0.02/GiB. A payment method is required to create resources (cards and alternatives accepted); credit-card necessity and commercial-use permission not explicitly confirmed.

Free allowance

Apache-2.0 open-source feature-flag evaluation engine with local/remote flag sources, targeting rules, real-time updates and progressive rollouts; no vendor-imposed flag or evaluation quota when self-hosted.

Keep in mind

Self-hosted software only; provide your own compute, configuration and flag source. No built-in UI, management console or persistence layer. Operational infrastructure costs are separate.

Free self-hosted software
Free allowance

Free Apache-2.0 open-source encrypted backup software; unlimited locally managed snapshots and backup policies; optional self-hosted server mode with web UI and API.

Keep in mind

Self-managed backups require local, network, or cloud storage at your own cost; cloud provider transfer/storage fees apply. Shared repositories use a single password and have no per-user repository ACL.

Free self-hosted software
Free allowance

Free MPL-2.0 open-source secrets and encryption management; self-hosted secret engines, identity-based policies, audit devices and HTTP API; no software license quotas.

Keep in mind

Requires self-managed infrastructure, secure TLS, unsealing, key recovery, access policies and backups; hosting/operations cost extra. MPL-2.0 source distribution obligations apply to modified covered files.

Free allowance

Free AGPL-3.0 self-hosted business intelligence with unlimited users, questions and dashboards, a visual query builder and SQL editor, and connections to 20+ data sources.

Keep in mind

You provide and maintain the server, metadata database, backups and data-source connections. AGPL-3.0 obligations apply to modified/distributed versions and network use; advanced SSO, row/column security and white-label embedding are paid. Metabase Cloud is not a free ongoing plan.

Free allowance

Free Apache-2.0 open-source observability/APM platform with distributed tracing, metrics, logs, service maps, alerting, backend and web UI; no vendor software quotas for self-hosting.

Keep in mind

Self-managed Java OAP server, agents, UI and persistent storage (such as BanyanDB) require infrastructure and maintenance. Quickstart/default storage is not a production deployment; production needs appropriate storage, security and clustering. No managed cloud allowance is included.

Free allowance

Free Apache-2.0 open-source time-series SQL database with high-throughput ingestion, Parquet support and a built-in web console; no vendor-imposed software quotas or license fee.

Keep in mind

You supply compute, storage, backups and operational security. High availability/replication, role-based access control, TLS, audit logs and automated tiering are Enterprise features; the Enterprise trial is not an ongoing free tier.

Free self-hosted software
Free allowance

Free MIT-licensed local/self-hosted SMTP capture and email-testing server with a web inbox, message search, REST API, HTML/link checks and Docker or single-binary deployment; no vendor software quota.

Keep in mind

For development and staging email testing, not a managed email delivery provider. Default automatic pruning retains the latest 500 messages; protect the SMTP and web UI with authentication/network controls, especially when using optional relay/forwarding. You operate any hosting infrastructure.

Free allowance

Free Apache-2.0-licensed self-hosted data exploration and visualization platform with SQL Lab, charts, dashboards, database connectors and role-based access; no vendor software usage quota.

Keep in mind

You operate and pay for compute, metadata database, cache and any connected data services. Official Docker Compose quickstart is not production-ready; production requires hardened configuration, backups and an appropriate deployment (for example Kubernetes). Database drivers may require separate installation.

Free self-hosted software
Free allowance

Free Apache-2.0-licensed Kubernetes-native CI/CD framework with reusable Tasks, Pipelines, PipelineRuns and container-based execution; no vendor software usage quota.

Keep in mind

Requires your own Kubernetes cluster, compute, container registry, storage and maintenance. Tekton is a framework rather than a turnkey hosted CI service; configure RBAC, secrets, task provenance and triggers separately. Infrastructure and external services may incur costs.

Free self-hosted software
Free allowance

Free Apache-2.0-licensed open-source CI/CD automation engine for local or self-hosted container-based build, test and delivery pipelines, with multi-language SDKs, caching and tracing; no vendor software usage quota.

Keep in mind

Runs on your own Linux container runtime and compute; you pay for infrastructure and external services. Dagger Cloud remote engines, distributed caching, access control and hosted observability are separately billed; this entry covers only the open-source engine.

Free self-hosted software
Free allowance

BSD-3-Clause open-source self-hosted Tailscale-compatible coordination server for a single tailnet; no vendor-imposed device, user or traffic quota for the software.

Keep in mind

Runs on your own server; designed for self-hosters and small organisations, not an enterprise-scale Tailscale SaaS replacement. Requires compatible Tailscale clients and self-managed HTTPS, upgrades and optional relay infrastructure; hardware and network costs apply.

Free self-hosted software
Free allowance

Apache-2.0 open-source self-managed zero-trust overlay network with controllers, edge routers, identity-based policies, tunnelers and SDKs; no vendor-imposed seat or traffic quota for the OSS software.

Keep in mind

Operators must host and maintain controllers, routers, PKI, identities and network connectivity; infrastructure and operations cost extra. NetFoundry hosted, managed and commercially licensed management/support products are separate paid offerings.

Free allowance

Free Apache-2.0 self-hosted DNS proxy with DNS-over-HTTPS/TLS upstreams, configurable blocklists, per-client rules, caching and Prometheus metrics; no vendor software query quota.

Keep in mind

Requires self-managed server, upstream DNS resolvers and network access; upstream provider limits and infrastructure costs may apply. Primarily a forwarding proxy, not a managed authoritative DNS service; configuration is YAML-based.

Free allowance

Free GPL-3.0 self-hosted authoritative and recursive DNS server with web console, DNS-over-HTTPS/TLS/QUIC and blocklists; no vendor-imposed query or zone quota for the software.

Keep in mind

Self-hosting, DNS/network bandwidth, domain registration and operations are not included. Secure the admin console and public resolver against abuse; GPL-3.0 distribution obligations apply when redistributing modified software. Not a managed free DNS hosting plan.

Free self-hosted software
Free allowance

Free Apache-2.0 Kubernetes-native serverless framework for HTTP and event-triggered functions, autoscaling and custom runtimes; no vendor-imposed execution or function-count quota for the self-hosted software.

Keep in mind

Requires an existing self-managed Kubernetes cluster and ongoing compute, networking, storage and operations costs. This is software for running your own functions, not a hosted FaaS free allowance; external services and infrastructure may charge separately.

Free allowance

Free MIT-licensed self-hosted Docker AI workspace with document chat/RAG, configurable LLM providers, agents and developer API; no vendor-imposed chat or document quota for the core software.

Keep in mind

Runs on your own compute and storage. Local model hardware, paid cloud LLM APIs, vector databases and managed AnythingLLM Cloud plans are separate costs. Secure internet-facing instances, review third-party model licenses and disable optional telemetry if desired.

Free allowance

Free Apache-2.0 Kubernetes serverless serving layer for request-driven containers, automatic scale-to-zero, traffic splitting and revision management; no vendor-imposed application or request quota for the open-source software.

Keep in mind

Requires a self-managed Kubernetes cluster, compatible networking/ingress and compute capacity; infrastructure, storage, logging and operations can cost money. This is not a hosted cloud free tier. Knative Eventing and Functions are separate components with their own setup.

Free self-hosted software
Free allowance

Apache-2.0 open-source Vespa search and vector retrieval software for self-managed deployments, with no vendor-enforced query, index-size, or seat quota.

Keep in mind

You provide compute, persistent storage, operations, backups and security; local Docker setup requires at least 4 GB RAM. Internal protocols are not authenticated by default: isolate hosts and configure access controls/TLS. Vespa Cloud is a separate managed service.

Free self-hosted software
Free allowance

MPL-2.0 open-source lightweight search backend with full-text term indexing, autocomplete, and typo correction; self-hosted software has no vendor-enforced query, document, or seat quota.

Keep in mind

Sonic stores a term index and returns object identifiers, not full source documents; your application must retain source records separately. Operate and back up its RocksDB store yourself; no built-in clustering or automatic failover. Hosting costs are separate.

Free self-hosted software
Free allowance

Apache-2.0 open-source Flagr service for feature flags, A/B experiments, dynamic configuration, and API-based variant evaluation; no vendor-imposed seat or evaluation quota when self-hosted.

Keep in mind

You operate and pay for compute, database, backups, security, and availability. SQLite is suitable for a local demo; production deployments should configure a persistent MySQL/PostgreSQL database and TLS. Hosted demo is not a production service.

Free allowance

Apache-2.0 open-source event-driven serverless platform for running functions and triggers on self-managed Docker or Kubernetes infrastructure; no vendor-imposed function invocation or seat quota.

Keep in mind

You operate and pay for compute, containers, orchestration, persistent services, logs, security and backups. OpenWhisk deployment requires platform configuration; any third-party cloud infrastructure and connected services are billed separately.

Free self-hosted software
Free allowance

MIT-licensed, Docker-powered self-hosted PaaS for Git-push application deployments and lifecycle management on your own Linux server; no vendor-imposed application, deployment or seat quota in the core software.

Keep in mind

Not free managed hosting: supply and pay for Linux server, Docker, persistent volumes, networking, TLS, backups and operations. Core deployment is managed with CLI/SSH; plugins, hosting and connected services may have separate requirements or costs.

Free self-hosted software
Free allowance

Apache-2.0 open-source fine-grained authorization server supporting relationship-based and attribute-based access control via HTTP/gRPC APIs; no vendor-imposed authorization-check or seat quota for self-hosted software.

Keep in mind

Provide and secure your own compute, persistent database, backups, TLS, monitoring and availability. In-memory storage is for development; use PostgreSQL or MySQL for production. Managed authorization offerings and infrastructure cost extra.

Free allowance

Apache-2.0 open-source POSIX-compatible distributed file system backed by your own object storage and metadata engine; no vendor-enforced monthly storage, file or request quota in the community software.

Keep in mind

JuiceFS is not free managed storage: you pay for underlying S3-compatible object storage, metadata database (such as Redis or MySQL), compute, network, backups and operations. Commercial/enterprise edition is separate; anonymous usage telemetry is enabled by default and can be disabled.

Free self-hosted software
Free allowance

Apache-2.0 open-source self-hosted status page with configurable HTTP, TCP, ICMP and DNS health checks, conditions and alerting; no vendor-enforced endpoint or check quota for self-managed software.

Keep in mind

Self-hosted edition requires your own server, configuration, persistent storage, alert integrations, TLS and backups. Third-party alert channels may charge; Gatus.io managed status pages are a separate hosted product. No managed uptime SLA is included.

Free self-hosted software
Free allowance

Apache-2.0 open-source Kubernetes inference platform for predictive and generative AI models, with standardized inference APIs and optional Knative scale-to-zero; no vendor-imposed model-serving request or seat quota in the self-hosted software.

Keep in mind

You supply and pay for Kubernetes nodes, GPUs/CPUs, storage, network, observability, backups and model downloads; model weights have separate licenses. Knative-based serverless mode requires additional cluster components. No managed inference compute is included.

Free self-hosted software
Free allowance

Apache-2.0 open-source self-hosted feature flag management and A/B experimentation with unlimited team members, environments and evaluations; no vendor software seat or evaluation quota.

Keep in mind

You operate and pay for MySQL, Redis, compute, storage, TLS, backups and any Kubernetes/cloud integrations. Docker Compose Lite is for smaller deployments; production requires proper security and operational setup. No managed hosting included.

Free allowance

MIT-licensed Go library for Redis-backed distributed background tasks, worker concurrency, retries, delayed/periodic scheduling and priority queues; no vendor-imposed task, worker or monthly execution quota for self-managed use.

Keep in mind

Requires your own Go application workers and Redis-compatible broker, plus compute, monitoring, backups and operations. At-least-once task execution requires idempotent handlers; not a hosted queue or free Redis instance. Asynq API is pre-1.0 and Redis Cluster compatibility requires review.

Free allowance

MIT-licensed self-hosted Rust webhook delivery server with message signing, retries, endpoint management and delivery handling; no vendor-enforced monthly webhook or endpoint quota for the open-source server.

Keep in mind

Requires self-operated PostgreSQL, server/worker compute, network, backups and optional Redis; Docker Compose is a development-friendly deployment, not managed hosting. Open-source server differs from hosted Svix in some features and optimizations; hosted Svix Free is a separate catalog entry.

Free allowance

Hobby plan is advertised as free forever with static-site deployment, 150 GB bandwidth, 1 GB volume/package storage, 1 million requests and 1,000 build minutes per month; custom domains and managed HTTPS/SSL supported.

Keep in mind

Shared Hobby limits also cover app compute (6 active CPU hours), memory and other resources; usage above allowances may incur listed charges or require upgrade. Card requirement and commercial-use eligibility for the Hobby plan are not independently confirmed; verify before production use.

Free allowance

Apache-2.0 self-hosted SQL database compatible with MySQL clients, supporting Git-style branching, commits, diffs and merges of versioned tables; no vendor-enforced database size, query or seat quotas in the open-source server.

Keep in mind

Requires your own CPU, RAM, disk, backups and database operations. DoltHub sharing, Hosted Dolt and managed support are separate offerings; Git-style version control changes performance and storage considerations versus conventional MySQL.

Free allowance

MIT-licensed Node.js PostgreSQL-backed background job queue with task scheduling, retries, concurrency and PostgreSQL transaction integration; no vendor-enforced job, worker or monthly execution quotas when self-managed.

Keep in mind

Requires your own Node.js worker processes and PostgreSQL database; database, CPU, storage, backups and monitoring are not included. Tasks run at least once, so handlers should be idempotent; Graphile Worker is not a managed queue or free PostgreSQL service.

Free allowance

MIT-licensed self-hosted Community Edition API development platform for HTTP, REST, GraphQL and WebSocket testing, API collections and collaboration; no vendor subscription, request or seat quota for the community software.

Keep in mind

Self-hosting requires your own application server, database, authentication setup, backups, TLS and ongoing security maintenance. Enterprise-only features (such as advanced SSO and audit logging) and hosted Cloud plans are separate; commercial use permitted under MIT license.

Free self-hosted software
Free allowance

Apache-2.0 open-source continuous delivery server and build agents; self-hosted pipelines without a software license fee.

Keep in mind

You operate and secure the GoCD server and agents; compute, storage, plugins and supporting infrastructure are not included.

Free self-hosted software
Free allowance

Apache-2.0 open-source DNS server with configurable plugins for forwarding, caching, zone serving and Kubernetes service discovery; no software usage quota.

Keep in mind

Self-hosting requires DNS configuration, port 53 access and ongoing security/availability management; infrastructure, upstream DNS and cloud costs are not included.

Free self-hosted software
Free allowance

Apache-2.0 open-source container-based CI/CD automation with declarative pipelines, resources, jobs and workers; no license-based job quota.

Keep in mind

Requires self-managed web and worker nodes plus PostgreSQL; container runtime, infrastructure, maintenance and secrets security are your responsibility.

Free allowance

Free-for-life HTTP(S), TCP, UDP and TLS tunnels; unlimited data transfer with a 60-minute timeout per tunnel and random subdomains.

Keep in mind

Free tunnel URLs change when restarted or after the 60-minute timeout; persistent tunnels, custom domains/subdomains and priority support require paid Pro. Provider does not clearly state commercial-use eligibility for hosted Free.

Free allowance

Forever-free SSH-based HTTPS tunnels without signup or client download; short-lived free subdomains with rate-limited transfer.

Keep in mind

Free domain names rotate and throughput is speed-limited; persistent named domains and faster transfers require paid plans. Provider does not clearly specify commercial-use eligibility for free hosted tunnels.

Free self-hosted software
Free allowance

Apache-2.0 open-source event-driven serverless function framework; run functions with HTTP and data-stream triggers on self-managed Docker or Kubernetes, including CPU/GPU workloads.

Keep in mind

Requires a self-managed Docker host or Kubernetes cluster, image builds and registry, secure network configuration and operations; compute/GPU/storage and infrastructure are not included. Commercial managed Nuclio services are separate.

Free self-hosted software
Free allowance

Free Apache-2.0 GitOps continuous delivery for Kubernetes, with declarative application synchronization, drift detection, rollback and multi-cluster deployment.

Keep in mind

Requires a self-managed Kubernetes cluster, Git repository access, secured credentials and ongoing operational maintenance; cluster and infrastructure costs are not included. Managed commercial distributions are separate.

Free allowance

Free Apache-2.0 desktop AI assistant for Windows, macOS and Linux; run supported open-weight language models locally and offline, or connect optional external model providers. No Jan software seat or message quota.

Keep in mind

Local inference requires sufficient CPU/GPU, RAM and disk space; downloaded model weights have separate licenses and commercial-use conditions. Optional hosted model APIs can charge fees. Attribution requested where appropriate.

Free self-hosted software
Free allowance

Free MIT-licensed micro-PaaS for git-push deployment of multiple apps to your own Linux/Unix server, with Procfile workers, virtual hosts and optional HTTPS; no Piku software usage or seat limits.

Keep in mind

You provide and secure your own server, SSH access, Python, nginx and uWSGI; compute, bandwidth, storage, DNS and TLS operations are not included. Best suited to small self-managed deployments.

Free self-hosted software
Free allowance

Free Apache-2.0 full-text search engine you can self-host, with schema-less indexing, REST APIs, bulk ingestion, a built-in UI and disk-backed indexes; no software query or index quota.

Keep in mind

Self-hosted compute, disk, backup, access control and maintenance are your responsibility. The project documents no built-in high availability; Elasticsearch API compatibility is partial and not a drop-in Kibana replacement.

Free allowance

Free MIT-licensed durable workflow orchestration server for self-managed deployments; run application workflows, activities, task queues and retries without Temporal software usage fees or managed-cloud quotas.

Keep in mind

Requires operating and securing the Temporal cluster, workers and persistence database (for example PostgreSQL or MySQL); high availability, backups, monitoring and infrastructure incur costs. Temporal Cloud is a separate paid service.

Free allowance

Free MIT-licensed local AI chat desktop application and developer bindings; download supported models, chat privately offline and use LocalDocs or a local API server without GPT4All software message or token fees.

Keep in mind

Model weights have separate license and commercial-use terms; large downloads, RAM/CPU/GPU and disk space are required. Optional integrations and cloud services may have separate costs; local app is not a managed hosted API.

Free allowance

MIT-licensed Git-based feature flags, A/B experiments and remote configuration; unlimited definitions evaluated locally by SDKs using self-hosted static JSON datafiles.

Keep in mind

Requires your own Git repository, CI build and hosting/CDN for generated datafiles; no managed dashboard or hosted allowance. Infrastructure and delivery costs are separate; retain MIT license notices.

Free allowance

10,000 notification messages/month, 500 guide active users/month and 500 AI agent credits/month; unlimited workflows, broadcasts, delivery channels and team members.

Keep in mind

A message counts per recipient and channel; sending through email/SMS/push providers can incur their own charges. Developer tier is for evaluation or small-scale deployments; Knock does not hard-cap overages and may request billing setup if usage exceeds the free allowance.

Free self-hosted software
Free allowance

Apache-2.0 self-hosted OpenID Connect identity and OAuth 2.0 provider with pluggable LDAP, SAML, GitHub and other upstream identity connectors; no software usage or seat fee.

Keep in mind

Dex federates to upstream identity providers rather than replacing user directories; configure TLS, secure token signing keys, storage and identity connectors yourself. Upstream identity services and hosting may charge separately.

Free allowance

Apache-2.0 privacy-focused web analytics for multiple websites and users, with pageviews, sessions, referrers and device metrics; self-hosted without software usage fees or monthly tracking quota.

Keep in mind

Runs on your own server with Django and a database; configure HTTPS, backups, updates and privacy compliance yourself. JavaScript tracking is optional with a pixel fallback; no managed cloud hosting or support is included.

Free allowance

Apache-2.0 open-source ML/GenAI experiment tracking, model registry, evaluation and tracing; no software license, seat or experiment quota when self-hosted.

Keep in mind

Operate and secure your own tracking server, database and artifact storage; cloud infrastructure and third-party model/API calls are not included. This is not a managed hosting allowance.

Free self-hosted software
Free allowance

GPLv3+ open-source real-time host and container monitoring Agent, free on unlimited self-hosted nodes; local dashboard available under NCUL1.

Keep in mind

Run your own monitoring infrastructure. Netdata Cloud Community is a separate personal/non-commercial plan capped at 5 active connected nodes; Cloud Business and enterprise features are not included.

Free allowance

Apache-2.0 framework for packaging and serving AI/ML model inference APIs, batch jobs and multi-model pipelines; no software license fee or per-model quota when self-hosted.

Keep in mind

Supply and pay for your own CPU/GPU, network and model storage; model weights may have separate licenses. BentoCloud managed compute is not included; anonymous framework usage telemetry can be disabled.

Free allowance

Apache-2.0 open-source telemetry pipeline to receive, process and export traces, metrics and logs without per-host or telemetry volume license charges.

Keep in mind

Collector is a pipeline, not a hosted storage/search dashboard; provide your own telemetry backend, compute and network. Individual collector components have differing stability levels.

Free allowance

Up to 25 users, unlimited bases/tables, 10,000 total rows, 2 GB file storage, 3,000 API calls/month and one month of snapshots.

Keep in mind

Limits are shared per team; paid Plus/Enterprise needed for higher row/storage/API allowances and advanced features. Separate self-hosted server plans have different user limits.

Free allowance

Free open-source community observability platform for logs, traces, metrics, dashboards and application performance monitoring on self-managed infrastructure.

Keep in mind

Operate your own Docker/Kubernetes deployment and ClickHouse storage; advanced enterprise features and support are separate. SigNoz Cloud offers a 30-day trial, not an ongoing free cloud plan.

Free self-hosted software
Free allowance

AGPLv3+ open-source file sync, sharing, WebDAV and collaboration server with no software license fee or fixed per-user storage allowance when self-hosted.

Keep in mind

Provide and secure your own disk, server, database, backups and TLS; storage is limited by your infrastructure. Some apps, enterprise support and hosted plans cost extra; AGPL obligations apply.

Free allowance

Free hosted public documentation for one individual editor, GitHub/GitLab sync, interactive API documentation, previews and unlimited public page views.

Keep in mind

Custom domains, additional collaborators, AI Assistant and analytics require paid plans; the 14-day trial shown for Essential/Ultimate is separate from Free.

Free allowance

Free individual API client and core development tools, collections/environments, API specs and mock servers, native Git, manual Flows and collection runner.

Keep in mind

Designed for individuals; paid Solo/Team plans add automation, collaboration and expanded API monitoring. AI credits, mock-server usage and cloud queries have separate plan limits.

Free allowance

Free hosted documentation site with 5 editor seats, Git sync, a custom domain, web editor, search, MCP server and API playground.

Keep in mind

Pro AI Assistant/Agent, automations, preview deployments and advanced security are paid; 14-day Pro trial credits are not part of the ongoing Starter allowance.

Free self-hosted software
Free allowance

Free MIT-licensed self-managed Git service with unlimited users and repositories; includes Git hosting, pull requests, issues, package registry and Gitea Actions CI/CD with self-hosted runners.

Keep in mind

No vendor-hosted CI minutes or compute are included; you operate and secure the server, storage and Actions runners. Enterprise support, SAML SSO and advanced features are paid. This is not the separate Gitea Cloud free trial.

Free allowance

Free GPL-2.0 licensed authoritative DNS server with DNSSEC, zone management, API automation and zone-file or database backends; no vendor-imposed software query or zone quota.

Keep in mind

Self-hosted authoritative DNS requires your own public servers, DNS delegation, networking, updates and monitoring; infrastructure and optional vendor support are not included. PowerDNS Recursor and dnsdist are separate products.

Free self-hosted software
Free allowance

Free GPL-3.0-or-later self-hosted Git forge with integrated Forgejo Actions CI/CD workflows, repositories, pull requests and issues; no vendor-imposed software build-minute quota.

Keep in mind

You must provide, configure and secure your own Forgejo instance and Actions runners; runner compute, storage and network costs are not included. Forgejo Actions is not guaranteed compatible with GitHub Actions and GPL obligations apply when redistributing modified binaries.

Free self-hosted software
Free allowance

Free Apache-2.0 self-hosted reverse-proxy client/server for NAT traversal and TCP service exposure; no software-enforced tunnel or traffic quota.

Keep in mind

Requires your own publicly reachable server and client configuration with shared authentication tokens; bandwidth, server hosting, IP address, security hardening and operations are not included. Not a free hosted tunnel service.

Free self-hosted software
Free allowance

Free BSD-3-Clause self-hosted PaaS for deploying applications from source or container images with add-ons, scaling and deployment management; no software-imposed app quota.

Keep in mind

Requires your own Kubernetes infrastructure, networking, storage and operational maintenance; managed-cloud resources and third-party add-ons may cost money. License notices and third-party dependency terms apply.

Free self-hosted software
Free allowance

Free MIT-licensed self-hosted document-grounded AI agents and assistants, knowledge ingestion, cited answers, workflows and local-model support; no software license or seat fee for self-hosting.

Keep in mind

Bring your own compute, storage, embeddings and language models. Paid cloud/managed/enterprise offerings and third-party model API usage are separate; review model and connector licenses and secure deployments.

Free self-hosted software
Free allowance

Free MIT-licensed LocalTunnel client and server for exposing local HTTP services through a public URL; self-hosted deployment has no software-imposed session or traffic quota.

Keep in mind

Self-hosted server requires your own public host, wildcard DNS, reverse proxy and TLS setup; hosting and bandwidth are not free. The public localtunnel.me relay is best-effort with ephemeral URLs and no guaranteed uptime or fixed subdomain.

Free self-hosted software
Free allowance

Free GPL-3.0 self-hosted Kubernetes PaaS with app deployments, CI/CD pipelines, staging environments, GitOps review apps and add-on integration; no software-imposed application quota.

Keep in mind

Requires a Kubernetes cluster and your own compute, storage, networking and maintenance. GPL-3.0 obligations apply when redistributing modified software; external add-ons and cloud infrastructure can incur charges.

Free self-hosted software
Free allowance

Free Apache-2.0 open-source vector database for embeddings and similarity search, available as an embedded local store or self-hosted client/server; no vendor-imposed software vector or query quota.

Keep in mind

Self-hosted Chroma is distinct from metered Chroma Cloud with introductory $5 credits. You provide storage, backups, access controls, hosting and any external embedding-model/API costs; production scaling and security are your responsibility.

Free self-hosted software
Free allowance

Free Apache-2.0 open-source vector database for semantic, hybrid and full-text search, with standalone Docker and distributed Kubernetes deployment; no vendor-imposed software vector or query quota.

Keep in mind

Self-hosted edition only; compute, RAM, storage, networking, backups and operations are your responsibility. Zilliz managed cloud is a separate paid/limited service; infrastructure and optional model/embedding API usage may cost money.

Free allowance

Free-forever self-hosted Foundation feature flag platform with feature toggles, targeting, SDKs and integrations; official pricing states no limits on seats, MAU, projects or service connections.

Keep in mind

Open-core product: some enterprise capabilities, advanced RBAC, support and licensed features require a paid key; the core code is MIT licensed but not all repository features are unrestricted. Requires your own infrastructure, database, upgrades and security operations.

Free allowance

Free GPL-2.0-or-later self-hosted web analytics server for unlimited websites, pageviews, events, e-commerce tracking and reporting; no vendor-imposed software analytics quota.

Keep in mind

You must host and maintain the PHP application and database, secure admin access, configure privacy/consent and cookie retention as applicable, and comply with GPL obligations for redistribution. Infrastructure and maintenance costs are not included.

Free self-hosted software
Free allowance

Free Apache-2.0 open-source full-text, vector and geospatial search server with HTTP APIs, indexing, facets, replication and distributed SolrCloud; no vendor-imposed software index or query quota.

Keep in mind

Self-hosting requires JVM resources, storage, network security, patching, backups and operational expertise; optional cloud infrastructure, managed services and third-party integrations cost extra.

Free allowance

Free Apache-2.0 self-hosted distributed publish-subscribe messaging and streaming platform with durable topics, subscriptions, queue semantics, multi-tenancy and geo-replication; no vendor-imposed software message quota.

Keep in mind

Requires self-managed brokers, persistent storage/BookKeeper, metadata services, network security, monitoring and operational expertise. Cloud infrastructure, managed Pulsar and optional connectors can incur charges.

Free allowance

Free Apache-2.0 self-hosted NATS messaging server with JetStream durable streams, queue consumers, replay, key-value and object storage; no vendor-imposed software message or stream quota.

Keep in mind

You must operate your own NATS server/cluster and configure JetStream persistence, storage limits, authentication, replication and backups. Infrastructure, bandwidth and managed NATS/Synadia offerings are separate and may cost money.

Free allowance

Free Apache-2.0 self-hosted distributed event streaming platform with durable topics, consumer groups, Kafka Connect and Streams; no vendor-imposed software message or topic quota.

Keep in mind

Requires your own Kafka brokers/KRaft controllers, compute, disks, networking, monitoring, security, upgrades and backups. Managed Kafka, cloud infrastructure and third-party connectors may have separate charges.

Free allowance

Apache-2.0 OpenAPI/Swagger interactive API documentation renderer; self-host the static UI assets or embed its npm modules with no software license or usage quota.

Keep in mind

Requires an OpenAPI specification and your own hosting; CORS and authentication configuration may be necessary. SwaggerHub hosted collaboration products are separate paid offerings.

Free allowance

Apache-2.0 open-source real-time pub/sub messaging server for WebSocket, SSE, HTTP streaming and gRPC clients; self-host without a software message quota.

Keep in mind

This is real-time event delivery, not a managed webhook SaaS; requires your own servers and optional Redis/PostgreSQL/NATS brokers. Secure production authentication and TLS; infrastructure costs apply.

Free allowance

Apache-2.0 open-source identity server: self-host login, registration, recovery, verification, MFA and identity APIs without a per-user software license fee.

Keep in mind

Requires your own infrastructure, database, UI and email/SMS services; Ory Enterprise License is separate for enterprise features, guaranteed security patches, support and SLAs. Not the hosted Ory Network plan.

Free self-hosted software
Free allowance

Apache-2.0 open-source OpenTelemetry collector for metrics, logs, traces and profiles; self-host collectors without a software usage quota.

Keep in mind

Alloy is a telemetry collector, not a durable storage, query or dashboard backend; storage, processing, managed Grafana Cloud and infrastructure can cost extra.

Free allowance

Free ongoing hosted public documentation builds and versioned sites for eligible open-source software projects, supported by ads.

Keep in mind

Community hosting is for free/open-source projects using public repositories and public docs; commercial/non-free projects and private docs require Read the Docs Business (paid after trial).

Free self-hosted software
Free allowance

Apache-2.0 open-source distributed object/blob storage service with an HTTP object-storage API; no software storage or request quota when self-hosted.

Keep in mind

Requires your own storage nodes, networking, capacity planning, operations and often an authentication service; disk, bandwidth and infrastructure are not free. Not a hosted storage allowance.

Free self-hosted software
Free allowance

MIT-licensed OpenAPI/Swagger API reference documentation renderer; self-host or embed the open-source Redoc UI with no software usage quota.

Keep in mind

This is the free open-source renderer, not Redocly's paid hosted API documentation platform; requires an OpenAPI specification and your own hosting/integration.

Free self-hosted software
Free allowance

Apache-2.0 open-source model serving and inference APIs on Ray; run locally, on-premises or on your own Kubernetes/compute infrastructure with no software request quota.

Keep in mind

Requires your own CPU/GPU capacity and Ray deployment; large models, accelerators, storage and external APIs cost extra. Ray Serve is not a fully managed free inference service.

Free allowance

Apache-2.0 community-maintained Kubernetes-native AI/ML platform distribution; self-host training, notebooks and ML pipeline components without a software subscription.

Keep in mind

Requires a Kubernetes cluster and substantial infrastructure and operational resources; managed vendor distributions and enterprise support may cost extra. Some experimental subprojects are not production-ready.

Free allowance

Free authoritative forward and reverse DNS hosting with IPv4/IPv6 support, dynamic DNS updates, secondary/slave zones, and A, AAAA, CNAME, MX, TXT, CAA, SRV and other record types.

Keep in mind

Bring your own registered domain; reverse DNS delegation depends on the IP allocation holder. The provider labels this an open beta and does not publish a guaranteed DNS query quota or commercial SLA; account/card and commercial-use terms require confirmation.

Free self-hosted software
Free allowance

Apache-2.0 Kubernetes event-driven autoscaler for containers and jobs; scales workloads from zero replicas based on queue lengths, events, and external metrics, without a software-side request or replica quota.

Keep in mind

Requires an existing Kubernetes cluster, compatible metrics/event sources and operating capacity; worker nodes, cloud event services and monitoring can incur charges. KEDA is an autoscaling component, not a hosted function runtime.

Free self-hosted software
Free allowance

Apache-2.0 open-source Kubernetes Function-as-a-Service platform for synchronous and asynchronous functions, OCI image builds and event-driven scale-to-zero, with no software subscription or invocation quota.

Keep in mind

Requires self-managed Kubernetes and supporting build, event and runtime components (including dependencies such as Dapr); compute, networking, registries and third-party event sources may cost extra. CNCF Sandbox project; no managed free cloud hosting is included.

Free self-hosted software
Free allowance

Free Apache-2.0 open-source core for self-hosting application, Docker Compose and database deployments on your own servers, without a per-app or per-deployment software subscription.

Keep in mind

Provide and pay for VPS/bare-metal resources, storage, backups, domains and networking. Managed Dokploy Cloud is paid after a trial; enterprise features under proprietary/ use a separate paid source-available license. Only the open-source core is covered.

Free allowance

Free AGPL-3.0 self-hosted secure networking and reverse-proxy platform with WireGuard-based tunnels, sites, resources and users, using the Community Edition without a software subscription.

Keep in mind

Requires your own server, DNS, TLS, networking and ongoing maintenance. Community Edition is AGPL-3.0 (comply with source-sharing obligations); SSO, advanced RBAC, audit logs, high availability and other enterprise controls are paid. The free Enterprise personal-use license has separate revenue and eligibility limits and is NOT this plan.

Free allowance

MIT-licensed open-source encrypted peer-to-peer overlay network using certificate-based identity, built-in firewall rules and self-managed lighthouse discovery; no vendor-imposed node or traffic quota in the software.

Keep in mind

You must provision and maintain lighthouse/peer nodes, certificates, networking, routing and any relay infrastructure. Cloud servers, egress, mobile platform dependencies and operations can cost extra; no hosted free VPN service or managed SLA is included.

Free allowance

Apache-2.0 open-source terminal AI pair-programming tool with repository mapping, Git integration and code editing; run with your own Ollama/local models without an Aider software subscription or vendor-imposed message quota.

Keep in mind

No free hosted model credits are bundled. Local models require suitable RAM/GPU and may produce lower-quality edits; paid LLM APIs, compute and third-party services cost extra. Review each model's separate commercial license and security before granting file/command access.

Free allowance

Apache-2.0 open-source AI coding agent for IDE, CLI and SDK, with code editing, terminal tools and support for locally hosted models; no subscription or software usage quota for the open-source agent.

Keep in mind

Requires a compatible model: hosted LLM APIs, optional Cline credits, local inference hardware and external tools may cost extra. Agent access to repositories and terminal commands requires careful approvals and sandboxing; enterprise/team services are separate paid products.

Free self-hosted software
Free allowance

Apache-2.0 open-source GitOps continuous delivery controllers and CLI for Kubernetes; reconcile Git/OCI/Helm sources, deploy Kustomize and Helm resources, and automate image updates without a vendor-imposed software usage quota.

Keep in mind

Requires a user-managed Kubernetes cluster, registry/source repositories, and operations; cluster compute, storage, network, registry, and external integrations may cost money. Flux v1 is end-of-life; this listing covers actively maintained Flux v2 only.

Free allowance

MIT-licensed fully static full-text search indexer and browser-side search UI for built HTML websites; no vendor-imposed query, site, or document quota and no hosted search server required.

Keep in mind

You must run indexing during your site build and host the generated static search bundle yourself. Hosting/CDN bandwidth and CI build resources may cost money; large indexes increase build and client download costs. This is software, not a managed hosted search plan.

Free allowance

Apache-2.0 open-source @orama/orama search library for browser, Node.js, and edge runtimes, with full-text, vector and hybrid search, filtering, and facets; no vendor-imposed query or document quota for the self-managed library.

Keep in mind

This is an embedded library, not the managed Orama Cloud plan. You manage indexes, persistence, deployment and compute; optional embeddings, AI models, hosting, or commercial cloud features may incur separate costs. See repository LICENSE.md for Apache-2.0 terms.

Free allowance

MIT-licensed self-hosted HTTP webhook receiver that maps configurable JSON/YAML hook rules to local commands or scripts; no vendor-imposed webhook, endpoint, or event quota.

Keep in mind

Executes server-side commands: secure every exposed hook with signatures, trigger rules, least-privilege accounts and HTTPS/reverse proxy before production use. Requires your own host and operations; compute, bandwidth, TLS infrastructure and integrations may cost extra. No hosted delivery/retry service is included.

Free allowance

Apache-2.0 open-source Kubernetes progressive delivery operator supporting automated canary, A/B, and blue/green rollouts with metrics-based promotion and rollback; no vendor-imposed software deployment quota.

Keep in mind

Requires a Kubernetes cluster, compatible ingress controller/service mesh or Gateway API, monitoring metrics, and deployment operations. Cluster, load balancer, observability and network resources may cost extra; this is not a managed hosted CD plan.

Free allowance

Apache-2.0 open-source embedded vector and multimodal database for Python, JavaScript and Rust; local/self-managed storage, vector/full-text search and metadata filtering with no vendor-imposed software query or document quota.

Keep in mind

This is the self-managed open-source library, not managed LanceDB Cloud. You provide storage, indexing, compute, backups and operations; cloud object storage, embeddings and AI services may cost money. Observe Apache-2.0 notices.

Free allowance

Apache-2.0 open-source multi-type data annotation for text, images, audio, video and time series; run community edition on your own infrastructure without a vendor-imposed labeling task quota.

Keep in mind

Self-hosting, annotation storage and machine-learning backends are your responsibility and may incur costs. Enterprise collaboration, advanced review, governance and managed cloud features are separate paid offerings; this listing is community software only.

Free allowance

Apache-2.0 open-source Python workflow orchestration with self-hosted Prefect server/UI, scheduled deployments, retries, caching and event-driven flows; no vendor-imposed local server run quota.

Keep in mind

Self-host the API/server, workers, database and task infrastructure; hosting, compute, storage and third-party integrations can cost money. Prefect Cloud managed plans and enterprise features are separate; this is not a free managed cloud allowance.

Free allowance

Apache-2.0 open-source ML/AI pipeline framework and self-managed metadata/orchestration stack for reproducible training, tracking and deployments; no vendor-imposed local pipeline-run quota.

Keep in mind

The open-source framework and local/self-hosted deployment are distinct from paid ZenML Pro/Cloud offerings. You manage pipeline orchestrators, artifact stores, compute, metadata storage and integrations; external cloud/AI costs apply.

Free allowance

Apache-2.0 open-source workflow scheduling and monitoring platform with Python DAGs, task dependencies, scheduler, UI, executors and extensible provider integrations; no vendor-imposed self-hosted DAG-run quota.

Keep in mind

You operate the Airflow scheduler, API/UI, metadata database, workers and authentication; infrastructure, storage, observability and external integrations can cost money. Managed Airflow hosting such as MWAA/Composer is not included.

Free allowance

Apache-2.0 open-source data orchestration with Python-defined assets/jobs, schedules, sensors, run monitoring and local Dagster UI; self-managed execution has no vendor-imposed software run quota.

Keep in mind

Run and maintain the Dagster webserver/daemon, code locations, storage and execution infrastructure yourself; compute, database, logging and external services may cost money. Dagster+ managed Cloud features and support are separate paid products.

Free self-hosted software
Free allowance

Free self-hosted privacy-first analytics server for web, mobile and desktop apps; no vendor-imposed event quota in the self-hosted edition.

Keep in mind

Requires Docker Compose, your own compute, storage and maintenance. Server code is AGPL-3.0: network-service modifications trigger source-sharing obligations. Aptabase Cloud pricing and limits are separate.

Free allowance

Free Apache-2.0 Java feature-flag framework with toggle evaluation, audit and pluggable stores; no vendor-imposed flags, users or environment quotas.

Keep in mind

Self-managed Java library and optional console, not a hosted SaaS. Application hosting, storage, monitoring and rollout safety remain your responsibility.

Free allowance

Free Framer-hosted website on a Framer subdomain with 1 GB bandwidth; up to 10 CMS collections, 1,000 pages and 5 MB file uploads.

Keep in mind

Official FAQ positions Free for non-commercial use; custom domains require a paid plan. Initial 500 AI credits are one-time trial credits, not a recurring allowance. Hosting is subject to free-plan limits.

Free self-hosted software
Free allowance

Free Apache-2.0 self-hosted OAuth 2.0 / OpenID Connect server core for issuing tokens, client management, consent and login integration; no hosted-user quota.

Keep in mind

Requires a separate login/consent application, database and your own infrastructure. Ory recommends an enterprise agreement for business-critical deployments needing guaranteed CVE fixes, SLAs and advanced features; managed Ory Network is separate.

Free allowance

Unlimited local use of the BSD-2-Clause encrypted, deduplicating backup CLI; backup repositories can be stored on local disks or supported remote storage backends.

Keep in mind

Restic is backup software, not a hosted storage quota. You supply storage, compute and any cloud-provider fees; configure retention, credentials and restores yourself.

Free self-hosted software
Free allowance

Free AGPL-3.0 self-hosted log aggregation and query engine, with label-based indexing, compression and single-node or distributed deployment; no vendor-hosted ingestion allowance.

Keep in mind

Provide and pay for compute, storage, networking and operations; log collection and visualization commonly require Grafana Alloy and Grafana. AGPL-3.0 network-use/source-sharing obligations apply to modified deployments.

Free allowance

Free Apache-2.0 Java feature-toggle framework with runtime flag evaluation and user-specific activation strategies; no vendor-imposed flag or seat quotas.

Keep in mind

Library for Java applications, not a managed feature-flag cloud service. Host and operate your own application and state storage; feature management and rollout integration are your responsibility.

Free allowance

BSD-3-Clause open-source validating, recursive and caching DNS resolver; self-host on supported systems without a software subscription or per-query license quota.

Keep in mind

Not an authoritative managed DNS hosting plan. You provide and secure the server, networking, updates and DNSSEC trust anchors; bandwidth and hosting may cost money. Paid support is optional.

Free self-hosted software
Free allowance

Unlimited local software use for syncing, copying, mounting and encrypting files across supported storage backends; no hosted storage included

Keep in mind

MIT-licensed software only; remote storage quotas, API calls, bandwidth, hosting and provider charges are separate.

Free self-hosted software
Free allowance

Unlimited self-managed deduplicated, compressed and encrypted backup archives; no hosted storage quota included

Keep in mind

BSD 3-Clause licensed backup software; requires your own backup storage and infrastructure; remote hosting or transfer may cost extra.

Free allowance

Unlimited self-hosted OAuth2/OIDC authentication proxy instances and applications; no hosted identity-provider quota included

Keep in mind

MIT-licensed software; requires compatible OAuth2/OIDC provider, correct proxy/cookie configuration and self-managed infrastructure; identity-provider charges may apply.

Free allowance

Unlimited self-hosted static sites and HTTPS-capable file serving with the open-source Caddy web server; no hosted bandwidth or storage included

Keep in mind

Apache-2.0 licensed software; requires your own server, domain/DNS, storage and networking; automatic public HTTPS certificates depend on CA eligibility and network reachability.

Free allowance

Apache-2.0 serverless platform with OpenWhisk functions, integrated storage, databases and scheduling; unlimited software usage on self-managed Linux or Kubernetes infrastructure.

Keep in mind

Apache Incubator project; production deployment requires a suitably provisioned Kubernetes cluster and the bundled services need their own storage and operations; hosting costs are not included.

Free allowance

BSD-licensed open-source authoritative DNS server for hosting your own primary or secondary DNS zones; no software subscription or per-query license fee.

Keep in mind

Authoritative-only: no recursive caching resolver. DNS infrastructure, public IP addresses, bandwidth, monitoring and maintenance are self-funded; optional SLA support costs extra.

Free self-hosted software
Free allowance

Apache-2.0 document database with HTTP/JSON API, replication and offline synchronization; free self-managed software with no license-based record quota.

Keep in mind

Database replication and storage use your own servers, disk and bandwidth; hosted CouchDB services are billed separately.

Free allowance

MIT-licensed in-process analytical SQL database with local CSV, JSON and Parquet querying; all open-source engine features available without a subscription or query quota.

Keep in mind

Embedded analytics engine, not a managed multi-user database service; users provide their own compute, storage and any external object-storage credentials.

Free self-hosted software
Free allowance

Apache-2.0 open-source retrieval-augmented generation and document-ingestion engine with self-hosted Docker deployment; no software subscription or per-document vendor quota.

Keep in mind

Recommended starting resources are 4 CPU cores, 16 GB RAM and 50 GB disk; Elasticsearch/Infinity and database dependencies require maintenance. LLM/embedding API and infrastructure costs are separate.

Free allowance

Free Apache-2.0 desktop SQL client with database navigator, SQL/data editors, ER diagrams and data transfer for supported relational databases; no seat or time limit.

Keep in mind

Community has fewer NoSQL, cloud, enterprise-auth and scheduler features than paid PRO. Database hosting, drivers requiring separate licenses, and external AI APIs are not included.

Free allowance

Free browser-integrated AI assistant for chat, summaries, writing and translation with rate-limited default and selectable models; no account required.

Keep in mind

Requires Brave browser; provider does not publish a fixed numerical free request allowance and models/rate limits can change. Premium subscription is separate; commercial-use terms require checking.

Free self-hosted software
Free allowance

AGPL-3.0-only open-source distributed tracing backend with OpenTelemetry ingestion and TraceQL queries; self-managed deployments have no vendor-imposed trace-count license quota.

Keep in mind

You supply object storage, compute, networking and Grafana visualization; hosted Grafana Cloud plans are separate. AGPL-3.0 obligations apply; check Apache-2.0 exceptions in LICENSING.md.

Free self-hosted software
Free allowance

Apache-2.0 Kubernetes developer platform with self-service application deployment, CI/CD, GitOps, developer portal and observability; no software subscription fee.

Keep in mind

Requires Kubernetes and operational resources for control, data, CI and observability planes; external cloud services and compute are not included.

Free self-hosted software
Free allowance

Free MIT-licensed real-time web access-log analytics with terminal dashboard and HTML, JSON or CSV reports; self-hosted without a vendor request quota.

Keep in mind

Requires access to web-server logs and your own machine/storage; no hosted analytics service or traffic retention is included. Visitor counts depend on log format and available data.

Free self-hosted software
Free allowance

AGPL-3.0 self-hosted AI second brain for searching personal documents, chatting with local or external LLMs, and creating custom agents; no software-license query or agent-count quota.

Keep in mind

Self-hosting requires your own compute, storage and optional model/API credentials; paid model APIs and hosted Khoj plans are separate. AGPL-3.0 network-use and source-sharing obligations apply.

Free self-hosted software
Free allowance

Free Apache-2.0 open-source VPN Server, Client and Bridge for commercial or personal use; supports SSL-VPN, OpenVPN, L2TP/IPsec and site-to-site VPN without software license fees.

Keep in mind

Requires your own server, public network access, secure configuration and patching. Bandwidth, VPS and any external services are not included; no managed VPN service or SLA is provided.

Free allowance

MIT-licensed open-source CLI runs compatible GitHub Actions workflows locally in Docker, with no hosted CI minutes or software subscription quota.

Keep in mind

Runs on your own computer or CI infrastructure and requires Docker images, disk space and compute. Not every GitHub-hosted runner feature or service is emulated; no free cloud runners are included.

Free self-hosted software
Free allowance

Free self-managed encrypted VPN tunnels using open-source WireGuard kernel and userspace implementations; no software subscription, seat or tunnel license quota.

Keep in mind

Not a hosted VPN or automatic device-management service. Requires your own endpoints, key rotation, networking and infrastructure; Linux kernel components use GPLv2 while other platform components have different open-source licenses.

Free self-hosted software
Free allowance

Apache-2.0 application delivery platform for Kubernetes with deployment workflows, multi-cluster orchestration and progressive delivery; no software usage quota.

Keep in mind

Requires your own Kubernetes cluster, networking and deployment infrastructure; this is a platform controller, not a free managed hosting account.

Free allowance

Apache-2.0 distributed wide-column database with replication, CQL and multi-node scaling; unrestricted open-source software use on self-managed servers.

Keep in mind

Clusters require ongoing capacity planning, backups and operations; CPU, storage and network costs are not included and managed Cassandra offerings have separate pricing.

Free allowance

Free MIT-licensed HTTP(S) inspection and debugging proxy with terminal UI, mitmweb and mitmdump scripting; no license fee or request quota.

Keep in mind

Run locally or on your own infrastructure. HTTPS interception may require a trusted test CA and explicit authorization; hosted proxy infrastructure and external services are not included.

Free self-hosted software
Free allowance

Free MPL-2.0 authoritative and recursive DNS server software with DNSSEC, DNS-over-TLS/HTTPS and no vendor-imposed query or zone quota.

Keep in mind

Requires self-managed server, network and security updates; hosting and bandwidth are not free. Commercial BIND -S edition and paid support are separate.

Free self-hosted software
Free allowance

Free GPL-3.0 network-wide DNS server for ad/tracker blocking with configurable filtering and no vendor-imposed DNS query quota.

Keep in mind

Self-hosted AdGuard Home is distinct from hosted AdGuard DNS; requires own server, network configuration and maintained blocklists. GPL-3.0 obligations apply on redistribution.

Free allowance

Free Apache-2.0 Kubernetes-native DAG/steps workflow engine with container tasks, workflow templates and cron scheduling; no software license fee or task quota.

Keep in mind

Requires your own Kubernetes cluster and operational maintenance; compute, container registry, object storage and networking can incur charges. Not a free hosted workflow service.

Free allowance

Unlimited local full-text indexing and querying with the MIT-licensed Rust search engine library; supports BM25, phrase and faceted search without a hosted subscription.

Keep in mind

Tantivy is a Rust library rather than a managed or distributed search server; applications must provide their own API, index storage and hosting. Distributed search is outside its scope.

Free self-hosted software
Free allowance

Free GPL-3.0-or-later authoritative DNS server with DNSSEC signing, zone transfers, dynamic updates and response-rate limiting; no vendor-imposed zone or query quota.

Keep in mind

Authoritative DNS only, not a recursive resolver; self-hosted servers, bandwidth and DNS operations cost extra. GPL redistribution obligations apply.

Free allowance

Unlimited self-managed text, numeric, geo and vector indexing/querying with the Apache-2.0 Go search library; no vendor-hosted usage quota.

Keep in mind

Embedded Go library, not a turnkey hosted search service; storage, compute, API and index lifecycle are the operator's responsibility. Some optional vector features depend on build configuration.

Free self-hosted software
Free allowance

MIT-licensed OpenHands core AI coding agent, CLI, SDK and agent-server for local/self-managed use, without a software-license task quota.

Keep in mind

LLM provider usage and local compute can cost money. OpenHands Cloud/Enterprise and the enterprise/ directory use separate commercial or time-limited licenses; this listing covers only the MIT core.

Free self-hosted software
Free allowance

Unlimited self-managed Kubernetes progressive deployments with blue-green and canary rollout strategies; no software subscription or per-rollout quota.

Keep in mind

Requires an existing Kubernetes cluster, compatible ingress or service-mesh integrations for advanced traffic shaping, and operator-managed infrastructure; cluster and metrics-provider costs are not included. Apache-2.0 core.

Free self-hosted software
Free allowance

Unlimited self-hosted CI/CD pipelines and runs using the Apache-2.0 Agola server and executors; no software license fee or hosted compute included.

Keep in mind

Operator must provision compute, storage and runners; project activity is relatively infrequent (last official repository update in 2025), so evaluate maintenance and security before production.

Free allowance

Unlimited self-hosted REST notification requests and configurable destinations via MIT-licensed Apprise API; no software fee or vendor-side request allowance.

Keep in mind

Requires your own server and downstream notification providers, which may charge separately. Authentication is disabled by default; enable it and TLS before exposing the API publicly.

Free allowance

Self-hosted MIT-licensed workflow orchestration engine for durable background tasks, scheduled jobs, retries and event-driven workflows; no software subscription or published per-run quota for the self-hosted deployment.

Keep in mind

Requires operating Hatchet server, PostgreSQL, workers and infrastructure. Hatchet Cloud pricing and payment-card requirements are separate; this entry does not include managed cloud runs.

Free allowance

Free LGPL-3.0 Java background job scheduler with persistent enqueueing, delayed and recurring jobs, automatic retries and a basic dashboard; provider indicates about 100 recurring jobs as a practical OSS limit.

Keep in mind

Requires a Java application and supported SQL/NoSQL storage. The ~100 recurring-job figure is a practical performance guideline, not a hosted allowance. Priority queues, batches and advanced workflow features require JobRunr Pro.

Free allowance

Free BSD-3-Clause Python distributed task queue for asynchronous and scheduled jobs, workers, retries and task routing; no vendor-imposed task quota when self-managed.

Keep in mind

Requires Python worker processes plus a message broker such as RabbitMQ or Redis; infrastructure, broker hosting and monitoring are not included. Native Microsoft Windows support is not maintained.

Free allowance

Free Apache-2.0 Elixir background job processor with reliable persisted jobs, scheduled/cron jobs and community support; no software subscription for the open-source edition.

Keep in mind

Requires an Elixir application and a supported database. Oban Pro features including durable workflows, global/rate limiting and queue partitioning are paid; infrastructure is not included.

Free allowance

Free MIT-licensed self-hosted Ruby feature flags with local persistent adapters, actor/group/percentage rollouts and optional basic flipper-ui administration; no cloud subscription or vendor request quota.

Keep in mind

Designed for Ruby/Rails applications; requires your own application and datastore. Advanced hosted collaboration, audit history, permissions and polished Flipper Pro UI are not part of Cloudless.

Free allowance

Self-hosted BSD-2-Clause open-source HTTP server for static HTML, CSS, images and files, with virtual hosts, caching and reverse proxy; no vendor-imposed site, traffic or request quota in the OSS software.

Keep in mind

You provide and pay for hosting, storage, bandwidth, DNS, TLS configuration and maintenance. F5 NGINX Plus and enterprise support are separate paid offerings; the free software is not a hosted plan.

Free allowance

Apache-2.0-licensed self-hosted HTTP server with DocumentRoot-based static website and file hosting, virtual hosts and extensible modules; no vendor software quota on websites or requests.

Keep in mind

Infrastructure, domains, bandwidth, TLS configuration and operations are your responsibility; Apache HTTP Server does not include free hosted compute or managed support.

Free allowance

Revised-BSD-licensed lightweight self-hosted HTTP server for static files and websites, with virtual hosts, TLS and optional FastCGI/CGI; no vendor software quota on traffic or websites.

Keep in mind

Requires your own server, network, certificates and maintenance. No managed hosting, free bandwidth or guaranteed uptime is included; advanced dynamic applications require separate components.

Free allowance

Free AGPL-3.0 Debian-based self-hosting distribution with web administration, multi-domain hosting, user management, backups and a catalog of 500+ deployable apps; no YunoHost software subscription or app-count quota.

Keep in mind

You supply the machine/VPS, storage, network and domain; no managed cloud hosting or SLA. Individual packaged apps have their own licenses and may impose separate commercial restrictions; AGPL source-sharing obligations apply when relevant.

Free allowance

Community-operated ongoing free Johnny shared web hosting with 1,000 MB storage, up to 5 domains and published daily 200 GB memory / 10k CPU resource allowances; bandwidth is fair-use unmetered.

Keep in mind

Free Johnny registrations open only in limited capacity/time windows and may be unavailable when full; not guaranteed immediately. Heavy resource use can be suspended. Business hosting is restricted to micro-businesses under the provider's March 2026 terms; larger businesses must upgrade. Tommy requires a donation and is not this free tier.

Free allowance

Apache-2.0-licensed container-native Functions-as-a-Service platform that runs on your own Docker/Podman infrastructure; supports functions in multiple languages, local deployment and an embedded single-server database and queue, without vendor function-invocation quotas.

Keep in mind

Self-hosted software only: requires your own Docker/Podman host, container registry for nonlocal deployments, storage, security updates and operations. No free managed cloud execution, infrastructure or support is included.

Free allowance

MPL-2.0 open-source peer-to-peer file synchronization across your own computers; continuous encrypted transfers and local file storage, with no vendor-imposed per-device or transfer quota in the software.

Keep in mind

This is synchronization software, not free hosted object storage or backup. You provide devices, disks, network connectivity and maintenance; synchronization propagates deletions unless file versioning or separate backups are configured. MPL-2.0 source obligations apply to modifications and redistribution.

Free allowance

GPLv2 open-source IKEv2/IPsec VPN software for self-managed gateways and clients; no per-user, tunnel or bandwidth quota imposed by the free software.

Keep in mind

Requires your own gateway/server, public connectivity, certificates or authentication, networking and security operations. ISP/cloud bandwidth and infrastructure may cost money. Optional commercial licensing and paid support are separate; GPLv2 conditions apply to redistribution.

Free allowance

MIT-licensed local model runner and API for downloading and running supported LLMs and embedding models on your own computer or server, with no vendor-imposed local inference request quota.

Keep in mind

Local inference requires your own CPU/GPU, memory, storage and electricity. Individual model weights have their own licenses and commercial-use terms; hosted Ollama cloud models and third-party APIs may have separate limits and charges. MIT license covers the runner, not every model.

Free allowance

Apache-2.0 open-source log, metric and trace collector/processor with configurable input, filter and output plugins, self-hosted without a software-imposed event or host quota.

Keep in mind

Fluent Bit is a telemetry pipeline component, not a free hosted monitoring dashboard or long-term log store. You provide runtime resources and downstream storage/analytics; external log destinations may charge for ingestion and retention.

Free allowance

Apache-2.0 open-source distributed real-time analytical database with SQL queries and batch/stream ingestion, deployable on your own infrastructure without a vendor-imposed storage or query quota in the software.

Keep in mind

Self-hosted cluster compute, storage, networking, operations and streaming sources are not included. Managed Apache Pinot services are separate paid products; running a production cluster can require significant resources.

Free allowance

MIT-licensed local CLI and CI tool to scan Git repositories, commits, files and history for accidentally exposed secrets, with no vendor-imposed repository or scan quota in the open-source tool.

Keep in mind

Detection can produce false positives and miss secrets; configure rules and review findings. Local scanning requires your own compute/CI infrastructure; hosted enterprise monitoring, if used, is separate. Found credentials must be revoked or rotated, not merely removed from Git.

Free allowance

BSD-3-Clause open-source command-line HTTP client for sending API requests, testing endpoints, working with JSON, sessions, authentication and downloads on your own machine, with no vendor-imposed request quota in the CLI.

Keep in mind

This is a local command-line client, not a hosted API testing service. Your network, target API and infrastructure may have independent rate limits or costs. HTTPie desktop, web and cloud collaboration products have separate terms.

Free allowance

MIT-licensed local developer tool/version manager, environment-variable manager and task runner for reproducible development environments, with no vendor-imposed project, command or tool-install quota in the open-source CLI.

Keep in mind

Installed runtimes and plugins are separate software with their own licenses. Download bandwidth, registries, remote services and CI runners may cost money. mise does not include a hosted build environment.

Free allowance

Apache-2.0 Kubernetes-native integration operator; run Camel DSL integrations and event-driven workloads on self-managed Kubernetes without a vendor software usage quota.

Keep in mind

Requires a Kubernetes cluster and container build/deployment infrastructure; hosting, networking, observability and third-party integration costs are separate. This is self-managed serverless integration, not a free managed cloud function allowance.

Free self-hosted software
Free allowance

Apache-2.0 open-source Spin Operator and Kubernetes WebAssembly runtime; deploy self-managed Spin applications without a vendor-hosted request or execution quota.

Keep in mind

Requires a compatible Kubernetes cluster, Spin runtime components and infrastructure capacity; compute, networking and storage are not included. This is not a managed free cloud tier.

Free allowance

Apache-2.0 open-source policy engine for API authorization, infrastructure and Kubernetes admission decisions; self-managed CLI, REST API and SDK use without vendor decision quotas.

Keep in mind

Policy authoring, testing, enforcement integration and hosting are operator responsibilities; OPA makes policy decisions but the calling service must enforce them. Managed policy platforms are separate.

Free allowance

Apache-2.0 open-source runtime threat detection for Linux, containers and Kubernetes using configurable rules; no vendor software event quota for self-managed deployments.

Keep in mind

Requires host or cluster privileges and compatible kernel event collection; rule tuning, alert delivery, retention, SIEM integrations and infrastructure are operator-managed. Managed security services may charge separately.

Free allowance

Free self-managed endpoint security, log analysis, threat detection and SIEM/XDR stack with Wazuh agent, server, indexer and dashboard; no hosted vendor event quota.

Keep in mind

Self-hosted infrastructure, storage, updates and security operations are required. Components have GPLv2/Apache-2.0 licensing obligations; the separately managed Wazuh Cloud offering is a trial or paid service.

Free allowance

Apache-2.0 open-source scanner for vulnerabilities, misconfigurations, secrets and software bills of materials across container images, code repositories, filesystems and Kubernetes, with no software-imposed scan quota.

Keep in mind

Requires your own compute, network access and vulnerability database updates; scanning results depend on available advisory data and require human triage. Hosted security services and optional integrations may be separately priced.

Free allowance

Apache-2.0 open-source distributed approximate nearest-neighbor vector search with automatic indexing, replication and backup; no vendor-imposed index, query or vector quota for self-hosting.

Keep in mind

Kubernetes and AVX2-capable CPUs are required for the documented NGT agent. Infrastructure, object storage and operations are not free; Vald focuses on dense-vector similarity rather than keyword search.

Free allowance

GPLv2-or-v3 self-hosted DNS caching/forwarding, DHCP/DHCPv6 and router advertisement for small networks; no vendor-side DNS query or device allowance.

Keep in mind

Runs on your own network/server; DNS forwarding depends on upstream resolvers and their policies. DNSSEC and network configuration require operator maintenance. GPL distribution obligations apply; hosting and networking costs are separate.

Free allowance

GPLv2 self-hosted DNS-aware traffic load balancing, backend health checks, abuse/DoS filtering and Prometheus/HTTP metrics; no vendor-side DNS request quota.

Keep in mind

dnsdist is a DNS proxy/load balancer, not a hosted authoritative DNS service or standalone resolver; requires configured upstream DNS backends, infrastructure and secure operations. GPL obligations apply; commercial support is separate.

Free allowance

Free ongoing self-hosted WireGuard mesh networking with control plane, peer connectivity, policies and routing; no Community Edition license fee or time limit.

Keep in mind

Requires self-managed management/signal/relay servers and identity/network configuration. Server components use AGPLv3 and clients BSD-3-Clause; active-active HA, SCIM, peer approval and some enterprise logging require a paid commercial license. Distinct from NetBird Cloud Free.

Free allowance

Free-forever self-hosted Countly Lite product analytics for tracking your own web, mobile and desktop apps; 20+ community plugins and no vendor-hosted event quota.

Keep in mind

Countly Lite uses modified AGPLv3 terms. Internal use within commercial organizations and analytics for your own paid apps are permitted, but providing Countly as a service or dashboard for customers requires an Enterprise license. Self-hosting and data operations are your responsibility.

Free allowance

10,000 notification workflow runs/month, up to 20 workflows, 2 environments (development and production), 3 team members, and email/in-app/SMS/chat/push channels; no card required.

Keep in mind

Activity feed retained 24 hours and Novu branding applies. Pro/Team unlock higher volume and retention; downstream SMS, email or push providers may charge separately. Commercial-use contract terms should be confirmed; the self-hosted Enterprise offering is distinct.

Free self-hosted software
Free allowance

Open-source Buildbot master, workers and web UI for self-hosted continuous integration, build and test automation; no vendor-imposed software execution or build-minute quota.

Keep in mind

Run and secure your own Buildbot controller, workers, build storage and integrations; compute, storage and networking may cost money. Buildbot is GPL-2.0 licensed, so distribution must comply with the license.

Free self-hosted software
Free allowance

Free Apache-2.0 self-hosted multi-cloud continuous delivery pipelines, deployment strategies, application management and rollback tooling; no vendor-imposed software deployment quota.

Keep in mind

Requires substantial operator-managed infrastructure and integrations with cloud/Kubernetes providers. Cloud compute, storage, network and optional external services may incur charges; retain Apache-2.0 notices.

Free self-hosted software
Free allowance

Free and open-source self-managed CI and project-gating service with Ansible jobs, cross-project dependency testing and continuous delivery orchestration; no vendor-imposed build-minute quota.

Keep in mind

Operators must provide Zuul services, executors, nodepool or other workers, persistent storage and security maintenance. Build resources and external cloud providers may incur charges; follow upstream license obligations.

Free allowance

Free-forever self-hosted Docker-based app deployment platform with HTTPS and one-click app deployment; no vendor-imposed app or deployment quota in the free self-hosted software.

Keep in mind

Requires your own server, Docker/Swarm, domain and infrastructure; these costs are not included. The CapRover license appendix requires modifications of free features to remain free/open-source and restricts redistribution of paid versions; paid hosted features are separate.

Free allowance

Free AGPL-3.0 community desktop AI assistant supporting multiple model providers and local models; no vendor-imposed limit on locally running the community software.

Keep in mind

Cloud model API subscriptions, tokens and local compute may cost extra. Commercial use is allowed under AGPL-3.0 obligations; a separate commercial license is offered for exemption from AGPL terms.

Free allowance

MIT-licensed self-hosted automation agents for scheduled jobs, event monitoring and conditional actions; no vendor-imposed number-of-agents or run quota in the open-source software.

Keep in mind

Self-hosting and operational maintenance are required; external APIs, proxies and infrastructure may have separate charges and limits. Huginn is event/agent automation, not a managed queue service.

Free self-hosted software
Free allowance

Free self-hosted browser interface for local and OpenAI-compatible AI models; no vendor-imposed usage quota when running the software with required branding intact.

Keep in mind

Current Open WebUI License (v0.6.6+) is source-available, not OSI-approved: keep Open WebUI branding intact unless the documented <=50-user exception or explicit permission/license applies. Hosting, model inference and third-party API costs are separate.

Free allowance

Free self-hosted FeatureHub Open Source edition with unlimited users, flags, applications, environments and feature requests according to the project's official repository.

Keep in mind

Current LICENSE.txt includes Commons Clause on top of Apache-2.0: selling/hosting the software itself as a paid service is restricted; ordinary internal commercial use differs from resale. SaaS is paid after its 30-day trial. Self-hosted infrastructure is not free.

Free allowance

GPLv3 open-source HTTP/3 web server with static file hosting, PHP support and caching; no software license-based traffic or site quota.

Keep in mind

Requires your own server, storage and bandwidth. GPLv3 obligations apply on redistribution; embedding in a proprietary product may require a separate OEM license.

Free allowance

MPL-2.0 open-source infrastructure-as-code CLI with declarative plans, resource graph and providers; no software subscription or execution quota.

Keep in mind

Infrastructure provisioned through providers is billed separately; remote state, cloud runners and commercial support may carry charges. MPL file-level obligations apply when distributing modifications.

Free self-hosted software
Free allowance

Open-source relational SQL database with ACID transactions, indexes, JSON and replication; PostgreSQL License imposes no software seat, row or query allowance.

Keep in mind

Self-managed compute, storage, backups, high availability and support are not included; third-party managed PostgreSQL offerings charge separately.

Free self-hosted software
Free allowance

Free self-managed Nginx/LuaJIT-based web platform supporting static files, reverse proxying and programmable HTTP handlers; no software subscription or request cap.

Keep in mind

Own hosting and operational costs apply. Bundled modules carry their respective BSD-style or other licenses; managed OpenResty commercial services are separate.

Free self-hosted software
Free allowance

Free self-managed infrastructure and service monitoring with health checks, distributed monitoring, alerting and REST API; no software host-based fee.

Keep in mind

Compute, storage and notification channels are your responsibility; Icinga 2 v2.16+ uses GPLv3+ and commercial support is separate.

Free allowance

Free open-source file sync, versioning, sharing and team collaboration server with no Community Edition software subscription fee.

Keep in mind

Self-hosting requires your own storage, database, backups and bandwidth. Server core uses AGPLv3; advanced search, compliance and enterprise functions require Professional Edition.

Free allowance

MIT-licensed visual AI agent and LLM workflow builder with local Python/Docker deployment, API and MCP server capabilities; no Langflow software usage cap.

Keep in mind

Own compute, database and hosting required; third-party model/API calls and vector databases may charge separately. Secure deployments require authentication and patching.

Free allowance

Free hosted ZeroTier Central Personal plan: up to 10 devices, 1 network, 1 network administrator; CLI, web UI and webhooks; community support.

Keep in mind

Personal, non-commercial use only; paid Essential plan required for commercial licensing, additional networks/devices and advanced API. Pricing effective August 4, 2026; older docs may show outdated 25-device limits.

Free allowance

Free-forever Cloudflare Zero Trust / Access and Gateway for teams up to 50 users; includes private-app access and secure web gateway with up to 24-hour standard log retention.

Keep in mind

Cloudflare requires payment details during Zero Trust onboarding even for Free, with no charge for the free subscription. No paid-plan SLA; 24-hour log retention, community support and product-specific quotas. Separate from Cloudflare DNS, Workers and Pages.

Free allowance

1 free personal DNS zone with up to 100,000 DNS queries/month, 5 email forwarders, Dynamic DNS and DNS-01 ACME/LEGO support.

Keep in mind

Strictly for personal, academic, non-commercial use; no SLA, community support only; failover, backup MX, additional nameservers and business use require paid credits. Provider requires email verification; card requirement not explicitly stated.

Free allowance

1 free Dynamic DNS hostname on a No-IP-owned domain, 1 update client and a choice of 30 No-IP domains; no credit card required.

Keep in mind

Must reconfirm hostname every 30 days or it may expire/be deleted; no included SSL certificate, custom-domain DNS or paid Public Tunnels. Free tier is marketed for home users; commercial-use eligibility requires provider confirmation.

Free allowance

Free static and dynamic DNS hosting, subdomains on shared public domains or own domains; Starter tier allows up to 5 subdomains with one-hour TTL.

Keep in mind

Free Starter has captchas and lacks wildcard DNS, stealth flags and premium propagation. Paid plans offer 50+ subdomains and 60-second TTL. Payment-card and commercial-use terms are not clearly stated on official free-plan pages.

Free allowance

Self-hosted Kubernetes event-driven automation framework; 20+ event sources (webhook, S3, Kafka, cron, cloud messaging) and 10+ trigger types; no software usage quota.

Keep in mind

Apache-2.0 licensed software; requires your own Kubernetes cluster, EventBus and operating resources. Hosting, networking, storage and connected cloud messaging services may charge separately; distinct from Argo Workflows/CD/Rollouts.

Free allowance

Open-source CloudEvents-compatible event routing, Broker, Trigger and event sources for Kubernetes; no vendor-imposed software event quota.

Keep in mind

Apache-2.0; requires a Kubernetes cluster and suitable broker/channel implementations. Compute, storage, network, cloud event sources and operations cost extra; distinct from Knative Serving.

Free self-hosted software
Free allowance

Apache-2.0 CNCF WebAssembly application and function runtime; run WASI components locally or via Kubernetes operator; no software usage quota.

Keep in mind

Requires own compute/cluster and optional NATS, OCI registry and ingress infrastructure. Host resources and external services may incur charges; separate from any managed cloud provider tier.

Free allowance

Free self-hosted webhook gateway Community mode: 1 organization, 2 projects and 1 user; inbound/outbound webhook routing and delivery retries.

Keep in mind

Elastic License 2.0 source-available, NOT OSI open source; prohibits offering Convoy as a competing hosted/managed service and bypassing license gates. Premium features need paid license; Postgres/Redis/hosting cost extra.

Free allowance

1 hosted Free vector search cluster per organization; 5 GB storage, 2.5 million vCUs/month and up to 5 collections.

Keep in mind

Free cluster is distinct from temporary $100/30-day Serverless/Dedicated trial; intended for evaluation and small projects, with limited features and no production SLA. Commercial production suitability should be confirmed with provider.

Free self-hosted software
Free allowance

Apache-2.0 open-source self-hosted OCI image and artifact registry with no software subscription or fixed vendor storage quota; capacity depends on self-managed infrastructure.

Keep in mind

Self-hosting, storage, backups, TLS, network and operations are user-funded; no free managed hosting is included. Follow Apache-2.0 notices and security maintenance.

Free allowance

Apache-2.0 open-source self-hosted container and OCI artifact registry with no software subscription or fixed vendor storage quota; includes image scanning, access controls and replication.

Keep in mind

Requires self-managed Docker/Kubernetes infrastructure, disk, bandwidth, TLS, database, backups and upgrades; infrastructure costs apply. Use stable releases rather than the development branch.

Free allowance

Free AGPLv3 Community Edition for self-hosted SFTP, HTTP/S, FTP/S and WebDAV file transfer with local, S3-compatible, GCS and Azure storage backends; no vendor-hosted quota.

Keep in mind

AGPLv3 copyleft obligations apply, including relevant source-disclosure duties for modified network-accessible deployments. Enterprise-only features/support and all hosting/storage/bandwidth are excluded.

Free allowance

MIT-licensed self-hosted job queue with no paid tier or per-job quota; supports retries, delayed/priority jobs, cron scheduling, SQLite or PostgreSQL persistence and multi-language clients.

Keep in mind

The queue server requires Bun; run it on your own infrastructure and pay any VPS/database costs. No managed hosting or SLA is included.

Free allowance

MPL-2.0 open-source job queue running with PostgreSQL or SQLite; no hosted usage quota; includes transactional enqueueing, retries, scheduled/periodic jobs and multiple queues.

Keep in mind

Self-managed database and worker compute are required; hosting costs are not included. MPL-2.0 obligations apply when distributing modified source files; managed support is separate.

Free allowance

Open-source Apache-2.0 Kubernetes-native GitOps promotion controller; self-hosted stages, warehouses and promotion workflows without vendor-imposed software usage quotas.

Keep in mind

Requires your own Kubernetes cluster and deployment infrastructure; cluster, image registry and CI provider charges are separate. Akuity's managed enterprise offering is distinct from the free self-hosted project.

Free self-hosted software
Free allowance

BSD-3-Clause open-source continuous delivery platform; self-hosted build/test/deploy pipelines with Docker, Kubernetes or Nomad executors and no vendor-set build-minute quota.

Keep in mind

Requires self-managed API, UI, log store, database, executors and SCM OAuth configuration; infrastructure and third-party integration costs are separate. Hosted free runner credits are not included.

Free allowance

Apache-2.0 self-hosted Kubernetes CI/CD system with presubmit/postsubmit jobs, GitHub ChatOps, policy enforcement and merge automation; no vendor-imposed job-minute allowance.

Keep in mind

Requires operating Kubernetes, build workers and artifact storage. Cloud compute, GitHub integration and storage costs are not included; configure bot permissions and webhook security carefully.

Free allowance

MIT-licensed self-hosted AI chat interface for OpenAI-compatible, local and cloud model endpoints; Docker/Node deployment with no NextChat software subscription or vendor-set chat quota.

Keep in mind

Self-hosted software is free, not the separately marketed hosted NextChat service. Cloud LLM API tokens, model inference, server/hosting and optional external services may cost money; secure access codes and API keys.

Free allowance

MIT-licensed multi-model AI chat workspace with personas, parallel Beam conversations and Docker/on-prem deployment; no vendor-imposed self-hosted software usage quota.

Keep in mind

Requires your own server or compatible deployment platform and API keys for paid LLM providers; model usage and infrastructure are not included. Hosted big-AGI subscriptions are separate; preserve MIT license notices.

Free allowance

Apache-2.0 open-source self-managed identity-aware reverse proxy for application access policies and OIDC identity-provider integration; no software subscription or per-user vendor quota for Core.

Keep in mind

Operate TLS, DNS, IdP, certificates and deployment infrastructure yourself. Pomerium Zero managed control plane and Pomerium Enterprise governance features are separate offerings with their own terms and fees.

Free allowance

Apache-2.0 open-source Zanzibar-inspired fine-grained authorization database with self-managed API and relationship permissions; no per-check vendor quota in self-hosted software.

Keep in mind

Requires operating your own SpiceDB instance, datastore and authentication/authorization integration; infrastructure, backups, monitoring and optional AuthZed managed services are separate costs.

Free allowance

MIT-licensed self-hosted real-time container log viewer for Docker, Docker Swarm, Kubernetes and Podman; free forever with no vendor-imposed log-viewing quota or account requirement.

Keep in mind

Live log viewer, not a long-term log archive. Requires your own container host; Docker socket access is privileged and must be secured. Hosting and storage costs are separate.

Free allowance

Apache-2.0 open-source single-node and cluster log database with LogsQL search, binary/Docker releases and no vendor-set ingestion or retention quota in Community binaries.

Keep in mind

Self-hosted storage, compute, backups and access protection are your responsibility. VictoriaMetrics Enterprise binaries, enterprise support and additional enterprise features require a separate paid license.

Free allowance

MIT-licensed open-source HyperDX observability platform with logs, traces, metrics, errors and session replay; self-host on ClickHouse infrastructure without a HyperDX software subscription or vendor-set event quota.

Keep in mind

Self-hosting requires ClickHouse and other deployment components; server, storage and telemetry processing costs are not included. Managed HyperDX/ClickStack cloud plans and their free limits are separate. Review anonymized usage-data setting.

Free allowance

Apache-2.0 licensed open-source feature management service; self-host feature toggles, progressive rollouts, targeting and A/B experiments using Docker Compose with no vendor-set software subscription or usage quota.

Keep in mind

Self-hosting requires your own compute, database and operations; change the documented default admin password before exposure. Hosting costs and any managed service are separate. Project's latest code push was June 2026.

Free allowance

2,500 event logs/month and 3 seats on a free-forever hosted event analytics plan; no credit card required.

Keep in mind

Monthly event quota applies; higher event volumes and additional seats require paid plans. Explicit hosted Free commercial-use rights and over-quota behavior are not independently confirmed.

Free allowance

Free forever hosted feature flags: up to 5 seats, 1 project, 2 environments, unlimited feature flags and 1 million SDK requests/month; targeting, segments and progressive rollouts; no credit card.

Keep in mind

7-day audit trail and community support. New accounts start with a 14-day Business trial, then automatically move to the ongoing Free plan without deleting flags. The 1M SDK request allowance is described as fair use; explicit commercial-use terms are not independently confirmed.

Free allowance

20,000 analytics events/month with unlimited apps, EU or US data residency, live dashboard, session timeline, CSV export and SDKs; no credit card required.

Keep in mind

Each track call counts as an event; no overage fees. Analytics ingestion pauses once the 20,000-event monthly quota is exceeded and resumes next month. Cloud Free differs from catalogued self-hosted Aptabase; explicit commercial-use terms are not independently confirmed.

Free allowance

Free MIT-licensed open-source static-site deployment tool built on Kamal and nginx with Git-based content updates; no software-hosting quotas when self-hosted.

Keep in mind

Requires your own server, Docker, Git repository and networking; hosting, domain and bandwidth may cost money. Skiff is a deployment stack, not a free hosted static-site service.

Free self-hosted software
Free allowance

Free MIT-licensed open-source Docker web application deployment tool for self-managed servers; no software deployment-minute, application or server-count quota.

Keep in mind

Not a free hosted PaaS: requires your own Docker-capable servers, SSH access, registry and infrastructure, which may cost money. App/runtime and third-party services are billed separately.

Free allowance

Free MIT/Apache-2.0 open-source single-node time-series database software with no license fees, usage fees, or telemetry requirement; self-hosted storage and compute are user-provided.

Keep in mind

Core queries approximately 72 hours of data by default due to Parquet query-file limits; high availability, multi-node and enterprise features require paid products. Own server, storage and object-storage costs apply; not a free managed cloud tier.

Free allowance

Free Apache-2.0 open-source framework for self-hosted LLM and multimodal inference serving; no software license fees or hosted API request quota.

Keep in mind

Requires your own GPU/CPU servers and model weights; compute, electricity, cloud GPU and storage may cost money. Model-specific licenses and commercial rights are separate from SGLang's Apache-2.0 code license.

Free allowance

Free Apache-2.0 open-source HTTP API mocking and stubbing server, available as standalone Java JAR, Docker container or library; no software request or project quotas.

Keep in mind

Self-hosted software only: server compute, storage and networking may cost money. WireMock Cloud hosted mocking and enterprise features are separate offerings; no hosted cloud allowance is included.

Free allowance

GPL-2.0-or-later open-source decentralized and standalone search server; self-hosted crawling, indexing and querying with no vendor-imposed document or query quota.

Keep in mind

Run and maintain your own Java 17+ server or Docker container, persistent index and storage; compute/bandwidth are not free. Secure the default admin credentials before exposing a node; GPL obligations apply when redistributing.

Free allowance

Apache-licensed open-source full-text enterprise search server with crawling, search UI and admin console; no vendor-imposed query, user or indexed-document quota when self-hosted.

Keep in mind

Requires a compatible OpenSearch backend and Java/Docker infrastructure; hosting, storage, indexing and operations cost extra. Community edition has no guaranteed support; paid commercial support is optional.

Free allowance

Apache-2.0 licensed Java full-text and vector search library with unlimited self-managed indexing and queries; no hosted usage, document or query quota.

Keep in mind

Lucene Core is an embeddable Java library, not a hosted search service or ready-to-run search server; applications provide APIs, infrastructure, indexing and operational support.

Free allowance

MIT-licensed open-source TCP/UDP tunnel over HTTP with SSH encryption, reverse port forwarding and SOCKS5 support; no vendor-imposed tunnel, user or traffic quota when self-hosted.

Keep in mind

Requires your own reachable server, bandwidth and networking; VPS and egress may cost money. Configure authentication, server fingerprint validation and access controls before exposing services. Free software is not a free hosted relay.

Free allowance

MIT-licensed open-source GO Simple Tunnel proxy and tunneling software supporting TCP/UDP port forwarding, reverse tunnels, multi-hop forwarding, SOCKS and HTTP proxies; no vendor-imposed connection or bandwidth quota when self-hosted.

Keep in mind

You supply and pay for servers, networking and bandwidth. Configure authentication, TLS, firewall rules and access controls; do not expose an unrestricted public proxy. No managed free relay is included.

Free self-hosted software
Free allowance

GPL-licensed open-source caching, DNSSEC-validating recursive DNS resolver with modular policy and DNS privacy support; no vendor-imposed DNS-query, zone, or client quota when self-hosted.

Keep in mind

Requires your own server, network bandwidth, security updates and correct resolver access controls. Avoid exposing an unrestricted public recursive resolver. GPL redistribution obligations apply; managed DNS hosting is not included.

Free allowance

MIT-licensed open-source SSH tunneling server for HTTP(S), WebSockets and TCP forwarding with public/private aliases and SNI routing; no vendor-imposed tunnel or traffic quota when self-hosted.

Keep in mind

Self-hosting requires a reachable server, DNS, SSH keys and optionally TLS certificates; compute, domains and bandwidth are not free. The separately offered managed tuns.sh service has its own terms and is not included.

Free allowance

Free EUPL-licensed self-hosted DNS sinkhole for network-wide ad and tracker blocking, local DNS caching and optional DHCP; no vendor-imposed DNS-query or client quota.

Keep in mind

Requires your own Linux/Docker host and DNS configuration, upkeep and blocklist management. Avoid exposing an open public resolver; DNS filtering can break legitimate sites. EUPL license conditions apply; hosting and bandwidth are not included.

Free allowance

BSD 3-Clause licensed authoritative DNS name server with DNSSEC and dynamic DNS updates; free to download and self-host with no software licensing fee or vendor-imposed zone/query allowance.

Keep in mind

Authoritative DNS software, not free managed DNS hosting or a general recursive resolver. Requires servers, redundant nameservers, public connectivity, maintenance and DNSSEC key management; infrastructure costs are separate.

Free allowance

Free AGPLv3-licensed self-hosted edition for low-traffic session replay, developer tools, product analytics and co-browsing; recordings and storage run on your own infrastructure, without a hosted free-usage credit.

Keep in mind

Requires your own infrastructure (official starting guide suggests at least 2 vCPUs, 8 GB RAM and 50 GB disk), privacy consent and sensitive-data masking. AGPL source-sharing obligations may apply; paid Dedicated and Enterprise capabilities are separate.

Free allowance

Apache-2.0 open-source CLI for building, publishing, testing and deploying container applications to Kubernetes with Git, Buildah and Helm; self-managed use without a werf license fee.

Keep in mind

Requires your own CI runner, container registry and Kubernetes cluster; compute, registry storage, bandwidth and other infrastructure are not included. This is not a free hosted CI service.

Free allowance

Apache-2.0 open-source self-hosted AI agent and workflow builder with integrations, run logs and knowledge resources; run the software on your own infrastructure without a Sim Cloud subscription.

Keep in mind

Self-hosted production Docker Compose stack requires substantial RAM (project setup guidance notes 12 GB or more) and local secrets. Model API, hosting, storage and third-party integrations may incur fees; Sim Cloud is separate.

Free self-hosted software
Free allowance

Apache-2.0 open-source Kubernetes-native CI/CD with Tekton pipelines and pull-request preview environments; self-managed software without a Jenkins X license fee.

Keep in mind

Requires Kubernetes, Git hosting, container registry and compatible pipeline infrastructure; cloud resources and associated usage can cost money. Distinct from Jenkins OSS and Tekton itself.

Free self-hosted software
Free allowance

Apache-2.0 open-source self-hosted Kubernetes dashboard and CI/CD platform supporting Helm and GitOps-based deployments; no license fee for the open-source code.

Keep in mind

Needs a Kubernetes cluster and Helm; compute, storage, monitoring and optional integrations may incur costs. Devtron SaaS and commercial offerings are separate.

Free allowance

Apache-2.0 open-source platform to build and deploy AI agents, workflows, plugins and knowledge bases on your own infrastructure using Docker Compose; no Coze Studio software license fee.

Keep in mind

Self-hosting requires at least 2 CPU cores, 4 GB RAM and Docker Compose. LLM API usage, hosting, databases and integrations can incur charges; Coze's managed platform is separate.

Free self-hosted software
Free allowance

BSD-2-Clause self-hosted OpenID Connect and OAuth 2.0 identity provider with passkey-only sign-in; no vendor-imposed user or login quota.

Keep in mind

Passkeys are required (no password fallback); deploy and secure your own server, HTTPS, backups and identity configuration. Hosting costs are not included.

Free self-hosted software
Free allowance

AGPLv3+ open-source client/server file and image backups with incremental backups and a web admin UI; no vendor-imposed device or storage quota.

Keep in mind

Your server, disks and network capacity determine practical limits; configure backup retention and restore testing. AGPLv3+ obligations apply to modified network-served software.

Free allowance

Apache-2.0 self-hosted private X.509 and SSH certificate authority with ACME issuance and automated renewal; no vendor-imposed certificate quota.

Keep in mind

Free open-source CA lacks several commercial Smallstep features, including turnkey multi-CA, high-availability and enterprise support; manage private keys and infrastructure yourself.

Free allowance

Apache-2.0 self-hosted file sync, sharing and collaboration platform with filesystem-backed storage; no vendor-imposed storage quota in the open-source server.

Keep in mind

Storage capacity depends on your own disks and infrastructure; deploy and maintain the server and OIDC identity integration. Enterprise support and hosted infrastructure are separate.

Free allowance

MIT-licensed open-source encrypted incremental and compressed backups to S3, SFTP, WebDAV and cloud storage providers; no software backup-volume quota.

Keep in mind

Backup destination storage, bandwidth and cloud API charges are separate; optional proprietary Duplicati features and paid services are not included. Test restore procedures.

Free allowance

Free SambaCloud API access without a linked payment method: production models have 20 requests/minute, 20 requests/day and 200,000 tokens/day per model.

Keep in mind

Free limits are small and model-specific; requests beyond the quota are rate-limited. Linking a payment method switches to Developer tier. Preview models are evaluation-only; commercial-use terms require provider confirmation.

Free allowance

Apache-2.0 self-hosted model-serving software for language, speech and multimodal models; no software-enforced monthly request quota; OpenAI-compatible API, CLI and web UI.

Keep in mind

Self-hosting requires your own CPU/GPU, RAM, storage and operations; some model weights, runtimes or integrations have separate licenses and costs. Enterprise features and support are separate.

Free allowance

MIT-licensed local LLM inference engine and OpenAI-compatible llama-server with no software-enforced request quota; runs on your own CPU/GPU hardware.

Keep in mind

Bring your own hardware, storage and energy; model weights have separate licensing and usage restrictions. Commercial rights for the MIT software do not imply commercial rights for every model.

Free allowance

Free MIT-licensed self-hosted model inference engine with OpenAI-compatible API and no software-enforced request or token quota; supports CPU-only or GPU hardware.

Keep in mind

You supply and pay for hardware, compute, electricity, storage and model weights. Individual model licenses and optional external services may restrict commercial use or add charges; the MIT core license is separate.

Free allowance

Apache-2.0 self-hosted feature flag API and admin dashboard with targeting rules, percentage rollouts, SSE updates, audit logs and OpenFeature integration; no vendor-imposed request or seat quota for the self-hosted core.

Keep in mind

Requires your own Docker or Kubernetes hosting, PostgreSQL, storage, operations and security maintenance. Open-core product; optional proprietary features and managed infrastructure are not included.

Free allowance

Apache-2.0 open-source personal cloud dashboard and Docker application manager for running self-hosted apps on Linux hardware; no software-imposed monthly app deployment quota.

Keep in mind

CasaOS is a self-managed software platform, not a free cloud server. You supply and maintain Linux hardware, Docker, disks, networking and electricity; individual apps may have their own licensing and costs.

Free allowance

Free zlib-licensed self-hosted container management interface for Docker, Swarm, Podman and Kubernetes, including basic container deployment and management; no vendor software subscription for Community Edition.

Keep in mind

Portainer explicitly positions Community Edition for homelabs, personal projects and non-production environments, with no support, SLA or guaranteed security fixes. Business-critical production should use Business Edition. You supply and pay for infrastructure.

Free allowance

Free hosted Starter Site on a webflow.io subdomain: 2 static pages, 1 GB bandwidth and up to 50 form submissions; limited CMS features.

Keep in mind

Custom domains, additional pages, advanced features and ecommerce checkout require a paid Site plan; Webflow branding and Starter limits apply. Commercial-use terms for free Starter require provider confirmation.

Free allowance

Ongoing hosted website on a free wixsite.com subdomain, with 500 MB storage and 500 MB bandwidth; free Wix website builder included.

Keep in mind

Custom domains, removing Wix ads, payment acceptance and higher storage/bandwidth require a premium plan. Free-site commercial-use terms and any payment-card requirements should be checked with Wix.

Free allowance

Free AGPL-3.0 OpenObserve open-source edition for self-hosted logs, metrics, traces, dashboards, alerts and OpenTelemetry ingestion; no vendor-hosted monthly ingestion allowance or software seat quota.

Keep in mind

Bring your own compute, storage and object storage; infrastructure costs and AGPL-3.0 network-source obligations apply. SSO, enterprise RBAC, audit trails and some security features require the paid Enterprise edition. This is NOT the discontinued OpenObserve Cloud free tier.

Free allowance

Free self-hosted Coroot Community Edition for application/infrastructure observability with metrics, logs, traces, service maps and eBPF monitoring; no Community software license fee.

Keep in mind

Requires self-managed Linux/Kubernetes/Docker infrastructure and storage; kernel/eBPF compatibility matters. Enterprise features, support and AI root-cause analysis require separate paid plans; Apache-2.0 license obligations apply.

Free allowance

MIT-licensed Node.js job queue on PostgreSQL with no software-enforced job, worker, or queue quotas; supports scheduling, retries, dead-letter queues and transactional jobs.

Keep in mind

Requires your own PostgreSQL 13+ database and Node.js 22.12+ or Bun; database, compute, storage, backups and operations are not included. Jobs are delivered at least once; handlers must be idempotent.

Free allowance

Apache-2.0 open-source CLI for reproducible local development environments; no per-user or project limits in the open-source tool.

Keep in mind

Requires Nix and locally provisioned compute/storage; third-party packages and any separately purchased Jetify cloud services have their own terms.

Free allowance

MIT-licensed cross-platform Git hooks manager; free local binary with parallel command execution and no software-enforced repository or hook limits.

Keep in mind

Requires Git and local/CI execution resources; configured hooks and third-party tools may incur their own costs. No managed hosting is included.

Free allowance

MIT/Apache-2.0 licensed formatter and linter for JavaScript, TypeScript, JSX, JSON, CSS and GraphQL; free local CLI and CI usage without a hosted request quota.

Keep in mind

Runs on your own development machine or CI runner; hosted CI resources are not included. Language support and rule coverage vary by release.

Free allowance

2 GB storage shared across apps; unlimited uploads/downloads; 7-day audit logs

Keep in mind

Free 2 GB storage is shared across all apps; 7-day audit logs; private files and region choice require paid plans. Official pricing does not explicitly confirm card requirement or commercial-use terms, so both remain check.

Free allowance

One free-forever single-node YugabyteDB Aeon Sandbox cluster per account, up to 2 vCPU, 4 GB RAM and 10 GB storage depending on provider; no credit card required.

Keep in mind

Development and tutorials only, not production or performance testing; up to 15 connections, no backups, no scaling or VPC networking. Inactive clusters may be paused after 10 days and deleted after 15 days; commercial production suitability requires provider confirmation.

Free allowance

100,000 vCPU-seconds, 200,000 GB-seconds of memory, and 100,000 incoming HTTP requests per month, shared across Code Engine usage

Keep in mind

Monthly free allocations renew; applications, functions, jobs and builds share compute quotas; pay-as-you-go overages are charged and an IBM Cloud billing card is required.

Free allowance

GPL-2.0-or-later open-source C++ full-text indexing and search library with language bindings, ranked retrieval, boolean and phrase queries; no vendor subscription, request quota, or hosted search allowance.

Keep in mind

An embedded/local library, NOT a managed search cloud service; you supply indexing/storage/compute. GPL-2.0-or-later obligations may affect redistributed linked applications; check license compatibility before commercial distribution.

Free allowance

MIT-licensed open-source Python DNS infrastructure-as-code tool for managing DNS records across multiple provider integrations; no software license fee, account cap or managed usage quota.

Keep in mind

Runs locally or in your own CI, not as a hosted DNS service. DNS providers, domains, API calls and CI infrastructure can incur separate charges; install and configure the relevant provider plugins.

Free allowance

GPL-2.0 open-source recursive DNS resolver with caching, DNSSEC validation and Lua scripting; free to deploy and run on your own infrastructure without vendor query quotas.

Keep in mind

Not an authoritative DNS hosting plan or provider-managed free DNS service; requires your own server, public-network/security configuration and operational resources. Commercial support and PowerDNS enterprise add-ons cost extra.

Free allowance

MIT-licensed free cross-platform DNS-as-code CLI for managing DNS records through provider APIs, with preview/push commands and support for multiple DNS providers; no software seat or zone quotas.

Keep in mind

Local CLI is not a free DNS hosting provider; DNS registrar/hosting/API charges, provider limits, domain registrations and automation infrastructure remain your responsibility. Protect provider API credentials.

Free allowance

2 concurrent HTTP/HTTPS tunnels with TLS and random subdomains on the ongoing $0 Starter plan; no credit card required.

Keep in mind

Free tunnels have session time limits and an interstitial warning page; TCP/UDP, custom domains and 24/7 availability require Pro. Intended for testing and light commercial use, not guaranteed production uptime.

Free allowance

1 free tunnel with 1 GB of monthly bandwidth; the free plan does not include TCP port allocations.

Keep in mind

Monthly 1 GB limit and one tunnel; reserved subdomains, port allocations, firewall features and higher bandwidth require a paid plan. Credit-card and commercial-use conditions for free accounts are not clearly specified.

Free allowance

Free Community license for a self-hosted AI code-completion and assistant server, with Apache-2.0 core software, IDE extensions and support for locally run coding LLMs.

Keep in mind

Community features and seats differ from paid Team/Enterprise; repository ee/ code has a separate commercial license. You provide CPU/GPU, storage and model inference; model licenses and paid remote APIs are separate.

Free allowance

MIT-licensed open-source webhook testing and routing toolkit with CLI, editor integrations, replay, event inspection and a documented self-hosted Docker deployment; no software license fee.

Keep in mind

Self-hosted operation requires your own server, public URL, database/Redis and maintenance. Do not assume the hosted unhook.sh service or team cloud features have unlimited free usage; verify cloud limits separately.

Free allowance

MIT-licensed self-hosted stateless webhook tester with real-time request inspection; no vendor request quota or paid software license; Docker deployment supported.

Keep in mind

You supply hosting, public endpoint, networking and TLS; Wirehook is stateless and does not retain incoming webhook payloads, so it is not a durable event queue or managed relay.

Free allowance

30,000 captured sessions per month, up to 10 users, with 12 months of session replay and analytics retention on the permanent FullstoryFree plan.

Keep in mind

Core session replay, basic analytics and debugging are included; advanced dashboards and StoryAI require paid plans. Follow privacy and consent requirements for session recordings.

Free allowance

50 hosted build minutes per month shared across a Bitbucket Cloud Free workspace of up to 5 users; 1 GB Git LFS storage.

Keep in mind

Build minutes are pooled across repositories; additional build capacity and Standard/Premium plans cost extra. Card requirements for the free workspace are not explicitly confirmed.

Free allowance

Up to 100,000 Remote Config fetch requests per day per project at no cost, effective September 1, 2026; A/B Testing, Rollouts and Personalization included.

Keep in mind

Above the daily free allowance on pay-as-you-go plans, per-request charges apply; quotas and limits still apply. This is a distinct Firebase Remote Config product, not Firebase Hosting or Realtime Database.

Free allowance

500 macOS M2 build minutes refreshed monthly for an individual account; one concurrent build and 30-day build history/artifact retention.

Keep in mind

Free minutes are for personal accounts, not team accounts. Usage beyond the allowance may incur standard rates; confirm billing controls and commercial eligibility before relying on it for production.

Free allowance

20 mobile app builds per month, one concurrent build, maximum 30 minutes per build; also 1,000 CodePush updates and 5 store publishes per month.

Keep in mind

Starter is always free but has strict build concurrency, duration and distribution quotas; corporate hosting and advanced controls require a tailored paid plan. Card and commercial terms need confirmation.

Free allowance

Free AGPL-3.0 Community Edition password and secret manager for teams, self-hosted with credential sharing and browser clients; no software subscription fee.

Keep in mind

Requires your own PHP/database server, TLS, email setup, backups and security updates. Cloud-hosted Passbolt is a separate paid service with only a short trial; paid enterprise capabilities are excluded. AGPL-3.0 source and trademark conditions apply.

Free allowance

Apache-2.0 open-source self-hosted web file manager with multi-source browsing, user permissions, file sharing, preview, WebDAV and API; no hosted storage quota or subscription for the software.

Keep in mind

Bring your own filesystem, TLS, identity configuration and backup; the v2 line is described as beta by maintainers, so evaluate release stability and security before internet exposure. Distinct maintained fork of archived original File Browser.

Free allowance

Sandbox free plan: 2 application services, 2 jobs and 1 database, with up to $20/month of Northflank Cloud resources; always-on services without sleeping.

Keep in mind

For testing and hobby projects, not production workloads. Beyond sandbox resources, usage is billed; BYOC provider costs are separate. Official pricing currently says no card needed but an older billing help page says a payment method is required for all plans, so card requirement needs confirmation.

Free allowance

Free-for-life personal website hosting: 1 GB shared SSD space, 256 MB RAM, quarter CPU core, and 3 days of backups on an alwaysdata.net address.

Keep in mind

Free plan is non-commercial and websites are restricted to the alwaysdata.net address; cannot run independent services. Disk quota is shared by website files, mail and databases. Paid Plus is separate; card requirement not confirmed.

Free allowance

AGPL-3.0 open-source self-hosted web application firewall and reverse proxy with ModSecurity OWASP CRS, HTTPS automation and Docker/Kubernetes integrations; no vendor software usage quota.

Keep in mind

Bring your own server, networking and storage; secure WAF configuration, rule tuning, updates and operations remain your responsibility. Professional support and managed infrastructure are separate; AGPL-3.0 obligations apply.

Free allowance

Free GPL-3.0 Debian-based NAS software with SMB/CIFS, SFTP, rsync and plugin-based storage administration; usable with your own disks without vendor storage quotas.

Keep in mind

Requires dedicated self-managed Debian host and physical/virtual disks; project expects exclusive control of OS configuration and cannot run in a container. Storage, backup hardware, electricity and maintenance are not included.

Free allowance

Apache-2.0 MongoDB-compatible document database proxy backed by PostgreSQL with DocumentDB extension; no software license fee or per-database quota when self-hosted.

Keep in mind

Requires independently hosted PostgreSQL and DocumentDB extension; MongoDB compatibility is incomplete and infrastructure, storage, backups and operations cost extra. Evaluation Docker image is not production-persistent.

Free allowance

MIT-licensed LiteLLM SDK and self-hosted gateway outside enterprise/; OpenAI-compatible routing to multiple LLM providers without LiteLLM software usage fees.

Keep in mind

enterprise/ code and paid enterprise features require a separate license; upstream LLM API tokens and self-hosted infrastructure are not free.

Free allowance

AGPL-3.0 open-source self-hosted APM for OpenTelemetry traces, metrics and logs; no hosted service allowance or software usage quota.

Keep in mind

Bring your own servers and storage; AGPL-3.0 network-service source-sharing obligations apply to modified deployments; vendor-hosted and enterprise features are separate.

Free allowance

Apache-2.0 time-series database for IoT ingestion, storage and queries; self-hosted standalone or clustered deployment without software license fees or a vendor usage quota.

Keep in mind

Requires own compute, disk, memory and backups; Java 17+ and host file-descriptor limits apply; no managed database capacity is included.

Free allowance

Apache-2.0 agentless self-hosted monitoring and alerting for infrastructure, services, metrics and logs; no software license fee or hosted quota.

Keep in mind

Requires own compute and storage for metrics/logs and any notification delivery costs; change the documented default admin password before exposing the service; managed hosting is not included.

Free allowance

Apache-2.0 Python framework for building RAG, agent and search pipelines; unlimited local framework use without a hosted service quota.

Keep in mind

Models, inference APIs, vector stores and hosting are not included and may incur charges; commercial deepset products are separate.

Free allowance

AGPL-3.0 self-hosted Go hub for Server-Sent Events and real-time HTTP API updates; no vendor software fee or hosted message quota.

Keep in mind

Operate your own server, TLS and storage; AGPL-3.0 network-copyleft obligations apply. Managed Mercure.rocks hosting is a separate paid service.

Free allowance

Apache-2.0 JavaScript fuzzy-search library for browser or Node.js; free local indexing and matching with no vendor request cap.

Keep in mind

Client-side/in-process library, not a hosted search API or server. Supply your own dataset and application compute; performance depends on index size.

Free allowance

AGPL-3.0 self-hosted NAT reverse tunneling for TCP, UDP and WebSocket transports; no vendor software license fee or hosted traffic quota.

Keep in mind

Needs a publicly reachable relay/server and networking setup; bandwidth, compute and TLS/security operations are your responsibility. AGPL obligations apply.

Free allowance

Apache-2.0 open-source vector database with vector similarity, hybrid search, payload filtering and a self-managed Docker deployment; no vendor-imposed software vector or query quota.

Keep in mind

Self-hosted Qdrant only, distinct from Qdrant Cloud. You provide compute, persistent storage, security, backups and operations; embedding/model APIs and infrastructure may cost money.

Free allowance

Free PostgreSQL-licensed extension for exact and approximate vector similarity search inside PostgreSQL 13+; supports HNSW and IVFFlat indexes, multiple vector types and distance metrics without a vendor-imposed software quota.

Keep in mind

Requires a PostgreSQL installation with extension support; some managed Postgres providers may not enable it or may charge for database compute and storage. Embedding generation and operations are separate.

Free allowance

Self-hosted Weaviate core vector database supports vector and keyword/hybrid search, metadata filtering and collections without a vendor-imposed core software query quota; BSD-3-Clause code is free to run.

Keep in mind

The repository has mixed licensing: code outside the wl directory is BSD-3-Clause; separately licensed enterprise features need a valid license key. Self-hosting, storage, backups, security and model APIs are not included; managed Weaviate Cloud is a separate plan.

Free allowance

Self-hostable community platform for AI workflows, agents, RAG pipelines and LLM applications using Docker Compose; no vendor-imposed community software workflow quota.

Keep in mind

Modified Apache-2.0 Dify Open Source License: multi-tenant workspace hosting requires commercial authorization, and frontend logos/copyright must remain intact. Minimum documented setup 2 CPU cores and 4 GiB RAM; infrastructure, external models and APIs cost extra. Distinct from Dify Cloud.

Free allowance

Hosted $0 Free plan includes 1 public status page, 100 subscribers, unlimited manual monitors and basic incident management; no credit card required to sign up.

Keep in mind

Active monitors are billed at $1/month each; SMS, calls, telemetry ingestion and advanced features may incur separate charges. No uptime SLA on Free. Distinct from free self-hosted Community Edition.

Free allowance

Per Forge app per month: 200,000 GB-seconds of Functions duration, 0.1 GB Key-Value reads and 0.1 GB writes, 1 GB log writes, 100,000 SQL compute requests and 730 GB-hours SQL data storage.

Keep in mind

Consumption above free allowances is billed monthly; LLM and container compute have zero free allowance. Atlassian's pricing FAQ asks for billing details, while Developer Space billing docs allow continued within-free usage without a payment method; confirm account requirements. Applies to Forge apps, not standalone serverless hosting.

Free allowance

Free $0/month managed infrastructure Starter for a self-hosted Better Auth application: 1 dashboard seat, 10,000 audit logs/month with 1-day retention and 1,000 security detections/month.

Keep in mind

This is optional managed infrastructure, not free hosting for your application or database. Starter is intended for evaluation and side projects; production-oriented features and longer retention require Pro. Card and commercial-use terms are not explicit.

Free allowance

Free privacy-first website analytics for 1 domain, 10,000 pageviews/month and 30-day retention; public dashboards, data export and MCP access included.

Keep in mind

Free plan is positioned for personal projects, portfolios and hobby sites; custom events, API access and extended retention require paid plans. Credit-card and commercial-use terms were not explicitly confirmed.

Free allowance

One Free Render Key Value (Redis-compatible) instance per workspace, in-memory data store with no monthly software subscription charge.

Keep in mind

Free instance has no disk persistence: all data is lost on restarts, upgrades and some maintenance. Not recommended for production; free instance may restart without notice. Card and commercial terms not independently confirmed.

Free allowance

Free-forever Developer plan for personal use: 25 feature flags, 50,000 SDK evaluations/month, up to 3 team members, Next.js/React SDKs and basic targeting; no card required.

Keep in mind

Developer plan is explicitly for personal use; Startup/Business plans unlock higher quotas and production-oriented environments. Exceeding free limits triggers a 7-day grace period before degradation.

Free allowance

30,000 image transformations/month; 20 GB bandwidth and 10 GB media storage; WebP/AVIF and URL-based transforms

Keep in mind

Hobby is positioned for side projects; advanced video/audio/document features, signed URLs and smart cropping require paid plans. Overage may be billed unless hard caps are configured; commercial-use terms unconfirmed.

Free allowance

1 static site, 10 GB bandwidth and 100 build minutes; custom domain, automatic HTTPS, private Git repositories and deployment webhooks

Keep in mind

Free Hobby builds use a queue rather than immediate scheduling; hosting and build quotas are limited. Provider states no trial period and no credit card, but commercial-use terms and overage behavior require confirmation.

Free allowance

500 assets, 1 GB storage, 10,000 API requests/day, 2 applications; shared content-addressed media library

Keep in mind

Free plan is positioned for side projects/experimentation; AI processing and larger limits require Pro. Media library is hosted by Stow; commercial-use terms are not explicit.

Free allowance

2 spreadsheet APIs and 500 API requests/month; CORS origin restrictions, IP allowlist and response caching

Keep in mind

Google Sheets permissions and limits apply separately. Requests above the free quota return HTTP 429; IP rate limit is 30 requests per 10 seconds. Commercial-use terms are not explicitly confirmed.

Free allowance

Unlimited DNS zones, records and queries with DNSSEC, IPv4/IPv6, REST API, dynamic DNS, primary/secondary zones and TSIG transfers

Keep in mind

Authoritative DNS hosting only; domain registration and any website infrastructure are separate. Provider offers email support without a paid SLA; commercial and small-business use is supported.

Free allowance

Connect 2 S3-compatible storage providers; 3 galleries and 3 file requests; unlimited shares and encrypted provider credentials

Keep in mind

Nubbo manages third-party storage and does NOT include storage capacity or bandwidth; your S3 provider may charge separately. Public API and advanced features are planned for paid plans; card and commercial terms unconfirmed.

Free allowance

Apache-2.0 open-source desktop/CLI/API agent with local execution, MCP extensions, skills and configurable LLM providers

Keep in mind

Agent software is free; paid LLM APIs/subscriptions and local hardware are not included. Choose an available local model for no provider usage charges; review model licenses separately.

Free allowance

1 Microsoft-hosted parallel CI/CD job with up to 1,800 minutes/month for private projects; 1 self-hosted parallel job with unlimited minutes

Keep in mind

The free parallel-job grant requires Azure DevOps organization billing linked to a valid Azure subscription; hosted jobs have a 60-minute run limit. New public projects are retired, and additional capacity is paid. Azure subscription/payment-method requirements vary.

Free allowance

14,000,000 scheduled invocations/month free across eligible AWS regions, supporting cron, rate-based and one-time schedules

Keep in mind

AWS account and billing setup required; invocations above free allowance cost $1 per million. Downstream target services, data transfer and related AWS resources may incur separate charges; GovCloud excluded.

Free allowance

200 email API requests/month; 2 templates, 1 user seat, 500 contacts and 7-day email history

Keep in mind

Free tier is positioned for testing and small projects; requests over monthly limit are dropped. No attachments or custom domain whitelist on Free; commercial-use terms require confirmation.

Free allowance

1 hosted form and 50 submissions/month with email notifications, spam filtering and form API

Keep in mind

Submissions above the free limit are held but inaccessible until upgrade; paid plans provide more forms, quota and integrations. Free plan is for small projects or businesses; payment method not explicitly confirmed.

Free allowance

Up to 5 serverless WebAssembly Spin apps, 100,000 requests/month, 1 GB key-value storage, 1 GB SQLite storage and 5 GB bandwidth

Keep in mind

Requires WebAssembly/Spin deployment; Starter is an ongoing open-beta free tier with no SLA. Paid Growth raises limits; custom domains may require paid tier and card/commercial terms are not explicitly confirmed.

Free allowance

Free GPL-3.0 self-hosted workflow scheduler/orchestrator with YAML DAGs, cron scheduling, retries, run history and a built-in web UI; Community server needs no license key or per-run subscription.

Keep in mind

Operate your own server, workers, storage and networking; hosting and external APIs cost extra. Paid self-host licensing adds SSO, RBAC and audit features. GPL-3.0 obligations and separate commercial embedding terms may apply.

Free allowance

MIT-licensed self-hosted distributed job scheduler and runner with web UI, multi-server scheduling, cron-style repeating/on-demand jobs, logs and REST API; no software license fee or vendor job quota.

Keep in mind

Requires your own Node.js hosts, storage and operations; infrastructure costs are not included. Maintainers now focus new features on successor xyOps; Cronicle receives primarily maintenance and security fixes.

Free allowance

MIT-licensed self-hosted webhook and HTTP request inspection server, with unique test URLs and realtime request viewing; no vendor-imposed request quota for the open-source edition.

Keep in mind

Run your own Docker/PHP hosting, storage, TLS and networking; infrastructure costs are separate. Open-source edition does not include cloud/Pro-only Custom Actions and other paid features; configure access controls and retention before exposing captured payloads.

Free allowance

MIT-licensed self-hosted HTTP webhook server that triggers local shell scripts/processes, supports signed requests, TLS and Docker or Go deployment; no vendor-imposed event or endpoint quota.

Keep in mind

Runs local commands in response to HTTP requests: enforce request signatures, network restrictions and least privilege. Requires your own server, TLS, monitoring and operational security; compute and networking costs are separate. Not a hosted managed webhook delivery tier.

Free allowance

Apache-2.0 open-source backend/serverless framework with APIs, functions, resource declarations, local development and deployment providers for AWS, Azure, GCP or user-managed infrastructure; no vendor license or per-function fee for the framework.

Keep in mind

Nitric is developer software, not a free hosted compute allowance. Deployed functions, databases, buckets, networks and cloud provider resources incur their own costs; a cloud account may require billing details. Plugin/provider compatibility and runtime quotas depend on the selected infrastructure.

Free allowance

MIT-licensed open-source code-server runs a browser-accessible VS Code environment on your own Linux machine or server, with no software license fee or published usage quota for the self-hosted edition.

Keep in mind

You supply and pay for compute, storage, networking, HTTPS and maintenance; code-server recommends at least 1 GB RAM and 2 vCPUs. This is not a free managed cloud workspace; secure remote access before exposing it publicly.

Free allowance

Apache-2.0 open-source S3-compatible Node.js server for local/on-premises object storage and development/testing; no license fee or vendor-enforced object quota for self-hosted use.

Keep in mind

This is software, not a free hosted S3 bucket. You provide disks, compute, backups and security; external cloud storage backends can incur charges. The upstream README documents example default access keys that must be replaced for real deployments.

Free allowance

Free MPL-2.0 client-only desktop/CLI tool to create devcontainer-based development environments on local Docker or user-selected remote infrastructure; no DevPod software subscription or usage quota for the open-source client.

Keep in mind

DevPod is not a free cloud hosting provider: cloud VMs, Kubernetes clusters, remote hosts and container resources may incur third-party charges. MPL-2.0 file-level copyleft conditions apply to modified source files; local Docker must be provided separately.

Free allowance

Official free Cells Home edition for self-hosted file sharing with filesystem/S3-compatible storage, document previews, sharing, WebDAV, REST API and desktop/mobile sync; no published expiration for the Home edition.

Keep in mind

Free Home tier is marketed for home use and evaluation; suitability for production business use should be confirmed. Paid Connect/Enterprise add SSO, LDAP, compliance and support. Hosting, storage and backups are user-funded; AGPLv3 source-sharing obligations may apply.

Free allowance

50,000 analytics events per month free for accounts created on or after July 1, 2026; older free accounts retain 100,000 events/month.

Keep in mind

Usage above the allowance can stop ingestion; TelemetryDeck describes automatic subscription upgrades after repeated overages, so check billing controls and current dashboard terms. Paid features and higher event volumes cost extra.

Free allowance

MIT-licensed JavaScript full-text search library for browser and Node.js; local in-memory indexing, fuzzy and prefix search, with no vendor usage quota.

Keep in mind

Local/embedded library, not a hosted search service. Index data must fit available application memory; CPU, storage, hosting and maintenance are your responsibility.

Free allowance

Free-forever managed hosting for 1 website with 1,000 MB NVMe storage, SSL, a free subdomain, one MySQL database, one email account and FTP access.

Keep in mind

Shared hosting subject to provider terms and resource limits; provider may suspend accounts that do not respond to notifications for an extended period. Domain registration is separate; commercial-use eligibility is not explicitly confirmed.

Free allowance

MIT-licensed self-hosted feature-flag management with targeting, environments, organizations, audit logs and Docker Compose deployment; no software usage quota stated.

Keep in mind

Self-hosted open-source edition; server, database, security, backups and operations are not provided free. Hosted Togglely service has separate terms and is not included.

Free allowance

Apache-2.0 open-source continuous CPU and memory profiling with self-hosted Parca server, web UI and eBPF agent; no vendor-enforced profiling quota for the self-managed edition.

Keep in mind

Requires your own compute, storage, network security, Kubernetes or Linux host setup, and operations. eBPF profiling needs compatible Linux kernel and permissions. Managed profiling, infrastructure, and optional third-party services may cost extra; not a free hosted cloud plan.

Free allowance

MIT-licensed self-hosted status pages with service monitoring, incidents, maintenance notices and public status communication; no vendor-enforced site or monitor quota for the open-source edition.

Keep in mind

You must deploy and maintain the Node.js/Svelte application, database, Redis/cache where required, HTTPS, backups and monitoring. Email, SMS, infrastructure and third-party integrations may incur separate charges; no managed service SLA is included.

Free allowance

Free-forever on-premises Professional CI/CD server with unlimited users, 3 build agents, up to 100 build configurations and 10 pipelines; no recurring TeamCity server license fee within those limits.

Keep in mind

Self-hosted server and build-agent infrastructure are not included. Extra agents and Enterprise features cost money; TeamCity Cloud has no ongoing free tier (trial only). The free edition's build configuration and pipeline limits still apply.

Free allowance

Public-domain, in-process SQL database engine for local applications with no vendor subscription, seat limit, database-size quota imposed by a hosted plan, or per-query charge for the core library.

Keep in mind

Runs embedded in the application rather than as a managed multi-user database server. Local disk, memory, backup, concurrency and hosting limits still apply; optional commercial SQLite extensions, support and warranty-of-title are separately priced.

Free allowance

Open-source Apache-2.0/PostgreSQL-licensed PostgreSQL-compatible WebAssembly database for browser, Node.js, Bun and Deno; in-memory or local filesystem/IndexedDB persistence with no vendor-enforced local query quota.

Keep in mind

Embedded single-user/local database, not a managed cloud PostgreSQL service or drop-in multi-client server. Storage, browser resource limits, sync services, and remote hosting are separate; some integrations may have their own costs.

Free allowance

GPL-2.0 open-source VPN daemon and community server/client software with no vendor-imposed connection or seat quota for self-managed deployments.

Keep in mind

Users must supply and secure their own VPN host, network bandwidth, TLS keys, updates, routing and client configurations. GPL-2.0 obligations apply to redistribution; commercial OpenVPN Access Server features, support and hosting are separate paid offerings.

Free allowance

Apache-2.0 open-source Python model-definition library for local inference and training across text, image, audio and multimodal models; no library subscription or per-inference vendor charge.

Keep in mind

Model weights and datasets have their own licenses, access gates and commercial restrictions; check each model separately. Local CPU/GPU, storage, cloud hosting and optional paid model/API endpoints are not included.

Free allowance

Up to 3 responsive one-page sites per account on Carrd subdomains with core site-building features.

Keep in mind

Free Basic sites retain Carrd branding; custom domains, forms, embeds and analytics require paid Pro. Commercial-use restrictions for the Basic offering are not independently confirmed; check the current terms.

Free allowance

MIT-licensed Python task queue with scheduling, retries and Redis, PostgreSQL, SQLite, file or in-memory backends; no software usage quota.

Keep in mind

Self-managed worker processes and optional Redis/PostgreSQL brokers are not hosted for free; production operation, monitoring and infrastructure costs remain your responsibility.

Free self-hosted software
Free allowance

GPL-2.0 licensed daemon to ban repeated authentication failures using log-based filters; no software usage quota.

Keep in mind

Requires a compatible self-managed host, log access and firewall integration; server costs and ongoing security administration are not included. GPL redistribution obligations apply.

Free allowance

Apache-2.0 JavaScript full-text search library for browsers and Node.js; no library usage quota.

Keep in mind

The free Apache-2.0 library runs in your own browser or Node.js application; server-side deployment and optional persistent database connectors incur separate infrastructure or database costs.

Free allowance

MIT-licensed uptime monitoring and public status page using your GitHub repository: scheduled endpoint checks, incident Issues, history commits and GitHub Pages; no Upptime subscription or dedicated monitoring server.

Keep in mind

You must configure and maintain a GitHub repository and workflows. GitHub Actions minutes, API/rate limits, repository visibility and GitHub Pages eligibility depend on your GitHub plan; private-repository workflows or excess usage can incur charges. Public monitoring history may expose endpoint details.

Free allowance

GPL-3.0 open-source uptime and status-page server with HTTP/TCP/UDP/ICMP/gRPC monitoring, status graphs and notification integrations; no software subscription or monitored-endpoint quota.

Keep in mind

Self-managed deployment, database, TLS, backups and server resources are not included; SMS or other third-party alerting services may charge. GPL-3.0 obligations apply when distributing modified software; this is the statping-ng fork, not a hosted free plan.

Free local software
Free allowance

Free MIT-licensed GoReleaser OSS command-line release automation for building, packaging and publishing Go project releases on local machines or existing CI runners.

Keep in mind

GoReleaser Pro premium features are not included. GitHub Actions or other CI minutes, package registries, signing, cloud resources and third-party release services can cost extra; this entry covers the OSS CLI only.

Free allowance

Apache-2.0 Spin CLI and runtime to build and run WebAssembly serverless applications locally or on self-managed infrastructure; no software subscription, app count or invocation quota in the open-source runtime.

Keep in mind

Spin OSS is not a free managed cloud deployment. Running production apps requires your own infrastructure and operational work; Fermyon Cloud and other providers have separate plans and usage limits. Language toolchains, databases, registries and cloud resources may cost extra. Distinct from SpinKube and Fermyon Cloud Starter.

Free allowance

Free Java SQL database engine (MPL 2.0 or EPL 1.0) with embedded, in-memory and TCP server modes; no software-enforced storage or query quota.

Keep in mind

Runs inside your JVM or on infrastructure you operate; hosting, storage and operations are not included. Modified H2 source must meet license publication obligations; distributed binaries need license and disclaimer notices.

Free self-hosted software
Free allowance

BSD-3-Clause open-source WebSocket, HTTP/2 and WebTransport tunnel client/server; no software-imposed tunnel or bandwidth quota.

Keep in mind

Requires your own reachable server and bandwidth; infrastructure and data transfer may cost money. Not a privacy tool: use trusted TLS and protect tunneled traffic end to end. Embedded self-signed certificate is unsuitable for production trust; WebTransport additionally requires reachable UDP.

Free allowance

Free MIT-licensed self-hosted webhook inspection and testing app with unique request URLs, configurable responses and WebSocket live updates; no vendor request quota.

Keep in mind

Requires your own host and network access; hosting and optional ngrok tunneling may cost money. In-memory storage loses captured requests on restart; configure filesystem or Redis for persistence and Redis for multi-instance deployments.

Free local software
Free allowance

Free LGPL-2.1 open-source transparent proxy over SSH for routed TCP and DNS traffic; no software-enforced traffic quota.

Keep in mind

Requires your own reachable SSH server and Python 3.10+ on both ends, plus sudo/root access on the client. Remote server or network transfer may cost money; UDP support depends on the local firewall method and Windows support is experimental.

Free allowance

Open-source terminal AI agent; personal Google-account free access currently lists up to 1,000 model requests per user per day (capacity limits apply).

Keep in mind

Free access is for eligible individual Google accounts and may be restricted to Flash models; commercial eligibility for the free account must be checked. Paid API keys, Vertex AI billing, and higher tiers are separate.

Free allowance

10 GB zero-knowledge encrypted cloud storage granted at signup to eligible new accounts; free allocation remains available after signup.

Keep in mind

Free 10 GB is a one-time eligibility-checked signup grant: VPN/proxy or anonymization-network signups may receive no free storage, with no later manual grant. Business use and card requirements need confirmation.

Free allowance

Free local LLM inference and fine-tuning with Apache-2.0 core; Unsloth Studio components are AGPL-3.0, with no bundled paid GPU or hosted compute.

Keep in mind

Local training/inference needs compatible hardware, GPU memory and model weights; cloud GPUs, hosted inference and third-party model APIs may charge separately. AGPL-3.0 Studio and model-license obligations apply.

Free allowance

MIT-licensed self-hosted DNS server and HTTPS API for automated ACME DNS-01 TXT challenges; supports SQLite or PostgreSQL backends.

Keep in mind

Requires your own DNS-capable server, port 53, domain NS/CNAME delegation and HTTPS API security; hosting, domains and any external CA/service costs are not included. Not a general managed DNS free plan.

Free allowance

BSD-2-Clause open-source authoritative DNS server with Deadwood recursive resolver; no software subscription, zone or query billing.

Keep in mind

Requires self-managed DNS infrastructure, domain delegation, security updates and monitoring. Hosting and network costs are separate; no managed DNS service or uptime SLA is included.

Free allowance

ISC-licensed local DNS proxy with DNSCrypt v2, DNS-over-HTTPS, anonymized DNS, caching, DNS filtering and multi-platform binaries.

Keep in mind

Runs on your own device/router or server; requires a chosen upstream resolver and careful network configuration. Free software does not include a managed DNS service, hosting or paid resolver charges.

Free allowance

Free forever for 1 website and up to 10,000 pageviews per month; includes friction detection, custom events, funnels, REST API and CSV export.

Keep in mind

When monthly pageviews exceed 10,000, collection pauses until the next month or upgrade; existing data remains. Free plan is marketed for personal sites/early projects; commercial eligibility is not explicit. EU-hosted, no self-hosted edition.

Free allowance

Apache-2.0 open-source metering and billing infrastructure for usage events, real-time aggregation, entitlements, pricing and usage limits; no software license fee.

Keep in mind

Requires your own OpenMeter services and dependencies such as Kafka, ClickHouse and PostgreSQL; infrastructure, payment processing and tax integrations cost extra. Managed Kong Konnect Metering & Billing is a separate paid offering; Helm chart is development-oriented.

Free self-hosted software
Free allowance

Apache-2.0 open-source trigram code search engine with Git repository indexing, web interface, JSON and gRPC search APIs; no software subscription or per-query fee.

Keep in mind

Self-hosted indexing, storage, CPU/RAM, access control and server maintenance are your responsibility; infrastructure and any Git hosting costs are separate. No managed hosted free tier is included.

Free allowance

BSD-style open-source regex code search for large source repositories; self-hosted indexing backend and web UI with no software license or per-search fee.

Keep in mind

Requires Bazel build or your own container deployment, separate indexing/search processes, and self-managed CPU, RAM, storage and repository access; hosting costs are not included. This is not a managed hosted search tier.

Free allowance

Apache-2.0 Java job-scheduling library; cron and calendar triggers, persistent jobs and clustering; no vendor per-job or per-project quota.

Keep in mind

Embedded in an application rather than a hosted scheduler; a database, worker runtime, servers and operations are supplied and paid for separately. Commercial use must comply with Apache-2.0 notices.

Free allowance

MIT-licensed self-hosted webhook action engine; YAML routing, token/HMAC/IP checks, command and script execution, forwarding, retries and hot reload; no software usage quota.

Keep in mind

Requires an operator-managed server and TLS/reverse proxy. Webhook-triggered shell commands can be dangerous: validate signatures, restrict privileges and isolate scripts; hosting and network costs are separate.

Free self-hosted software
Free allowance

Apache-2.0 self-managed distributed-application runtime with service invocation, pub/sub, state management, jobs and durable workflows; no vendor software usage quota.

Keep in mind

Run Dapr sidecars and supporting components on infrastructure you operate. Kubernetes/VMs, message brokers, databases and managed cloud integrations can incur charges; this is not a vendor-hosted free compute tier.

Free allowance

Free LGPL-licensed Python background task-processing library with RabbitMQ or Redis brokers, workers, retries and middleware; no vendor per-job software quota.

Keep in mind

You operate workers and a RabbitMQ/Redis broker; compute, storage and managed broker services may cost extra. LGPL license obligations apply to redistribution or modified library versions; commercial support is separate.

Free allowance

MPL-2.0 open-source local CLI encrypts YAML, JSON, ENV, INI and binary secrets using age, PGP or cloud KMS; no per-file software quota.

Keep in mind

Cloud KMS providers may charge for key operations; local age/PGP encryption avoids paid KMS. Safeguard private keys and plaintext, including CI logs and temporary files. MPL-2.0 redistribution obligations apply; SOPS does not provide hosted key management.

Free allowance

MIT-licensed local vulnerability scanner using community YAML templates for authorized HTTP, DNS, TCP, SSL and other security checks; no vendor software scan quota.

Keep in mind

Only scan assets you own or are explicitly authorized to assess. Treat third-party templates as untrusted checks; some may execute scripts or use headless browsers. Update the scanner/templates and throttle requests to avoid disruption. Hosted ProjectDiscovery services and CI compute are separate.

Free allowance

Apache-2.0 open-source CLI scans project dependencies, lockfiles and container images against known OSV vulnerabilities; no vendor software seat or scan quota.

Keep in mind

Run locally or in your own CI; CI compute and storage may cost extra. Online scans query OSV.dev/deps.dev with dependency metadata; offline mode needs downloaded databases. Guided remediation can execute package-manager scripts.

Free allowance

Free LGPL-2.1 local static code analysis engine with community rules, 30+ supported languages, no account required for basic scans and no vendor software scan quota.

Keep in mind

Semgrep-maintained rules have separate rules-license restrictions on competing SaaS and some commercial redistribution; LGPL engine license differs from rule licenses. Pro engine, supply-chain and secrets detection, hosted management and CI resources may cost extra.

Free allowance

MIT-licensed geospatial in-memory database server with real-time geofencing, spatial indexes, Redis RESP/HTTP interfaces and persistence; no vendor software quota or seat fee.

Keep in mind

Operate and secure your own Tile38 server, memory, storage and backups; infrastructure and networking costs are not included. Geofencing webhook destinations and external services may charge separately.

Free allowance

Apache-2.0 open-source Kubernetes distributed block storage with persistent volumes, synchronous replication, snapshots and backups; no vendor software capacity quota.

Keep in mind

Requires a Kubernetes cluster and sufficient node disks, CPU, networking and backup targets; cloud disks and object-storage backup traffic may incur charges. Replica count increases physical storage consumption.

Free allowance

Self-hosted AGPL-3.0 continuous profiling server for CPU, memory and application performance with profiling SDK/OTLP ingestion and Grafana visualization; no vendor software ingestion quota.

Keep in mind

Pyroscope 2.0 uses object storage for profiles; storage, compute, instrumentation and network traffic are user-provided and may cost extra. AGPL network-source obligations apply to modified versions; Grafana Cloud is a separately billed offering.

Free allowance

MIT-licensed cross-platform machine-learning inference runtime with CPU and supported hardware acceleration for ONNX models; no vendor software API quota or license seat fee.

Keep in mind

Run inference on your own devices or infrastructure; model weights, GPU/accelerator hardware, cloud compute and third-party services may cost extra. Some distribution builds collect usage telemetry; model licenses are separate.

Free self-hosted software
Free allowance

MIT-licensed Docker reverse proxy manager with web UI, proxy hosts, redirections, access lists and Let's Encrypt TLS; no software-enforced traffic quota.

Keep in mind

Requires self-managed Docker host, domain/DNS and port access; infrastructure, bandwidth and optional DNS services cost extra; keep the admin interface protected.

Free allowance

MIT-licensed AI coding agent for VS Code, JetBrains and CLI; locally installed extension and CLI have no software seat or usage quota.

Keep in mind

AI inference is not included: hosted model tokens, Kilo gateway and cloud agent may be billed; use a compatible locally hosted model to avoid model API fees. Agent can execute commands; review permissions.

Free self-hosted software
Free allowance

Open-source Kubernetes persistent volume provisioning for local and replicated storage; no software capacity or volume-count quota.

Keep in mind

Requires a managed or self-operated Kubernetes cluster and disks; storage, compute, backups and network transfer are not included. Replicated engines have node and kernel prerequisites.

Free allowance

Apache-2.0 open-source Prometheus-compatible metrics querying, high availability and long-term retention; no software ingest or retention quota.

Keep in mind

Self-hosted components require Prometheus and compute; object storage, network egress and long-term retention incur infrastructure/provider costs.

Free self-hosted software
Free allowance

MIT-licensed reverse proxy and ingress controller for Docker and Kubernetes; automatic service discovery, routing, TLS and load balancing without a software traffic quota.

Keep in mind

Self-hosted proxy requires compute, networking and DNS; infrastructure, certificate DNS providers and optional commercial support are not included. Secure exposed dashboards.

Free allowance

Free MIT/Apache-2.0 dual-licensed SQLite extension for local float, int8 and binary vector similarity search; no metered vendor service.

Keep in mind

Pre-v1 project; breaking API changes are possible. Requires a SQLite environment that permits loading extensions; local compute/storage and any external embedding APIs are not included.

Free allowance

Free MIT-licensed full-text search library for browsers and Node.js; fielded search, fuzzy matching and language support with no hosted query quota.

Keep in mind

Client/server application must build and store its own search index; no hosted search infrastructure is included. Repository development is infrequent and large indexes use application memory.

Free allowance

Free AGPL-3.0 self-hosted web analytics; unlimited sites and events subject to server capacity, with cookie-free tracking and a single-binary deployment.

Keep in mind

No vendor-hosted free tier; requires your own server/storage and operations. AGPL-3.0 obligations apply to modified network services; latest upstream release was September 2025.

Free allowance

Free hosted privacy-focused web analytics with voluntary pay-when-ready donations and no published usage quota; AGPL-3.0 self-hosted version is also available.

Keep in mind

Hosted service is donation-supported and may change terms; no published usage SLA. Official self-hosted variant is beta, needs Redis and server resources, and lacks archival functionality. Hosted credit-card and commercial terms need confirmation; AGPL obligations apply to self-hosting.

Free self-hosted software
Free allowance

MIT-licensed self-hosted Git and CI/CD platform; pipelines, build agents, code review and package registries without a software usage quota.

Keep in mind

Runs on your own server or Kubernetes; CPU, storage and runner costs are not included. Enterprise-only features are separately licensed; use the open-source edition. Official repository and license: https://github.com/theonedev/onedev

Free allowance

Apache-2.0 self-hosted developer platform with Git hosting, CI/CD pipelines, Gitspaces and artifact registries; no vendor-hosted free compute quota is included.

Keep in mind

Run Docker container or build from source; infrastructure, storage and CI runner capacity are user-funded. Open-source pipeline parity with legacy Drone remains evolving; commercial Harness SaaS plans are separate.

Free allowance

1 project, 3 static sites and 150 MB storage per account; 10 form submissions/month, SSL, analytics and CLI/MCP deployments.

Keep in mind

Free plan is for personal and trial projects and adds a mandatory Powered by Tuqo badge; custom domains and badge removal cost extra. Hosted data is in Russia; paid plans accept Russian bank cards only. Free plan needs no card.

Free allowance

Apache-2.0 flow-based event and webhook automation runtime with HTTP/MQTT nodes and visual editor; unlimited self-managed flows subject to your own resources.

Keep in mind

Self-host with Node.js or Docker and secure the editor and endpoints; server, storage and third-party API costs are separate. Community nodes may have different licenses; hosted FlowFuse is a separate offering.

Free allowance

300,000 DNS queries/month with filtering, analytics, unlimited devices and configurations; encrypted DNS options and community support.

Keep in mind

After 300,000 queries/month, DNS resolution continues but blocking, filtering and logging stop until the next allowance period. Business and education subscriptions are separate; commercial eligibility and card requirements for Free are not explicit.

Free allowance

Apache-2.0 open-source transactional distributed ordered key-value database with ACID transactions, multi-node deployment and no vendor-enforced query, user or storage quota for self-hosting.

Keep in mind

You must operate servers, disks, cluster coordination, backups, security and monitoring; infrastructure and optional commercial support are not included. Follow Apache-2.0 license notice requirements; this is not a free managed FoundationDB cloud instance.

Free allowance

Free GPL-2.0/GPL-3.0 cross-platform offline password manager for Windows, macOS and Linux, using encrypted KeePass-compatible local vault files, password generation and browser integration; no vendor account or password-count quota.

Keep in mind

Stores the vault locally; you must handle backups, device synchronization, recovery and security updates. No hosted password-sync service is included. GPL redistribution obligations apply to modified/distributed builds; hardware keys and optional cloud sync providers can cost extra.

Free allowance

Three free preset hosted DNS resolvers (Family, Adult and Security filters) with IPv4/IPv6, DNS-over-HTTPS and DNS-over-TLS; no account, subscription or payment card needed.

Keep in mind

Free filters are throttled and non-customizable, with no account dashboard, reporting, per-domain allow/block rules or support. Provider states free service is for parents rather than organizations; business/managed-network plans cost extra.

Free allowance

Free Apache-2.0 CNCF-certified Kubernetes distribution with single-node or multi-node clusters, containerd runtime, networking and workload orchestration on your own servers; no vendor software node or workload quota.

Keep in mind

You supply and operate compute, disks, cluster networking, TLS, upgrades, backups and monitoring. Public-cloud instances, load balancers, storage and commercial support are billed separately; this is not a free managed Kubernetes hosting plan. Follow Apache-2.0 notice obligations.

Free allowance

Free GPL-3.0 Android HOTP/TOTP authenticator with encrypted local vault, biometric/password unlock, encrypted backups and no subscription or token-count limit.

Keep in mind

Android app runs locally and does not provide managed authentication hosting or cross-device cloud sync; backup and recovery are your responsibility. GPL-3.0 redistribution obligations apply; compatible with standard TOTP/HOTP services.

Free allowance

GPLv2/LGPLv3+-licensed open-source distributed network filesystem for self-managed scale-out file storage on commodity servers; no vendor-imposed storage capacity, node or transfer quota for the software.

Keep in mind

Requires your own servers, disks, network, replication, backups, monitoring and security maintenance. Red Hat Gluster Storage commercial product reached EOL in December 2024, distinct from the upstream open-source Gluster project; check upstream release maintenance and GPL/LGPL obligations. No managed storage or SLA is included.

Free allowance

MIT-licensed SST CLI and TypeScript components for building and deploying serverless/full-stack apps on your own cloud infrastructure; no SST CLI usage quota.

Keep in mind

SST software is free, not hosted compute. AWS/Cloudflare and other provider resources, storage, networking and optional SST Console usage can incur charges; provider accounts and billing may be required. License applies to the framework, not third-party infrastructure.

Free allowance

BSD-3-Clause open-source inference server for serving TensorRT, ONNX, PyTorch, TensorFlow and other models over HTTP/gRPC with dynamic batching; no software request quota.

Keep in mind

Run and pay for your own CPU/GPU machines, model weights, networking and storage; no hosted inference credits included. Some optimized backends, hardware drivers and NVIDIA AI Enterprise services have separate licenses or costs.

Free allowance

MIT-licensed local software-engineering agent that works on repository issues and coding tasks using a user-selected language model; no license-imposed usage quota.

Keep in mind

Software is free but hosted LLM/API tokens, local GPU/CPU, Docker execution and CI may incur costs; no bundled free model inference or managed agent service. Review sandbox permissions and model/provider terms.

Free allowance

Apache-2.0 open-source runtime and model optimization toolkit for local CPU, Intel GPU and NPU inference with Python/C++ APIs; no software inference quota.

Keep in mind

Compute hardware, model licenses, electricity and any optional cloud hosting are separate; some accelerators need supported drivers. OpenVINO telemetry can be opted out; no free hosted model API is included.

Free allowance

GPL-2.0-licensed Checkmk Community monitoring engine, web UI, agent and agentless checks, and community plugins; self-hosted without a subscription or service-count trial expiry.

Keep in mind

Free Community edition differs from paid Pro/Ultimate in advanced automation, performance and support. Requires own Linux host or container, storage and monitoring agents; operating costs and GPL-2.0 obligations apply. No hosted free monitoring allowance.

Free allowance

AGPL-3.0 open-source Renovate CLI and bot for automated dependency-update PRs across supported repositories and package managers; no software-imposed repository or PR quota.

Keep in mind

Self-hosting requires your own CI runner, server or container, Git provider token and API rate-limit management. AGPL-3.0 obligations apply; hosted Mend Renovate Community is a separate service and is not an included cloud allowance.

Free allowance

MIT-licensed self-hosted QUIC/HTTP3 proxy server and client with configurable transport and authentication; unlimited software usage without a subscription.

Keep in mind

Requires an operator-controlled server or VPS, public connectivity, TLS configuration and bandwidth; none are free with the software. Network-provider policies, regional regulations and server security are the operator's responsibility.

Free allowance

AGPL-3.0 open-source CLI for JavaScript-based performance and load testing on your own machine or CI runner; no software test-run or virtual-user quota.

Keep in mind

Generating load uses your own CPU, network and CI resources; target service usage and bandwidth may be billed. Grafana Cloud k6 hosted tests and enterprise features are separate paid offerings; AGPL-3.0 terms apply.

Free allowance

Free-for-life hosted PHP 8.2 and MySQL 5.7 web hosting with 5 GB disk space, advertised unlimited bandwidth, free subdomains, a site builder and Softaculous app installer; no forced website ads.

Keep in mind

Shared hosting is subject to provider resource/fair-use restrictions, possible account suspension and PHP/MySQL runtime limits; advertised unlimited transfer is not a dedicated compute or VPS allowance. Verify SSL, backups, uptime and acceptable-use terms before production use.

Free allowance

Free-forever managed PHP/MySQL website hosting with 5 GB storage, advertised unlimited bandwidth, free subdomain or custom domain, free SSL, FTP and up to 400 MySQL databases; no required payment card or forced website ads.

Keep in mind

Shared-hosting fair-use and account resource limits still apply; unlimited bandwidth is not guaranteed dedicated capacity. Official pages disagree on supported PHP/MySQL versions and disk quotas, so confirm actual account limits and security-supported runtimes before deployment. No root/VPS access included.

Free allowance

Provider-operated free shared hosting with 3 GB SSD storage, advertised unlimited transfer, up to 100 websites, 10 MySQL/3 PostgreSQL/3 MongoDB databases, 512 MB RAM and SSH access; free subdomain and no forced ads.

Keep in mind

Not a free VPS or root server. Terms restrict accounts to website/email/repository hosting; VPN, proxy, tunneling and resale are prohibited. Terms state accounts without a proper panel/SSH login for 90 days may be deleted, and backups are not guaranteed. Resource abuse may trigger suspension; commercial website eligibility and payment verification require checking.

Free allowance

Apache-2.0 open-source CLI to build, package, locally test and debug AWS Lambda/serverless applications using Docker; no software license or CLI usage fee.

Keep in mind

The free CLI is not free AWS hosting: sam deploy, Lambda, API Gateway, CloudFormation-related resources, networking and logs may incur AWS charges and may require a billing account; local Docker and compute are your responsibility.

Free allowance

AGPL-3.0 Community PostgreSQL extension providing full-text and hybrid/vector search, BM25 ranking, filtering and aggregations; self-host with no vendor software usage quota.

Keep in mind

Requires a compatible PostgreSQL deployment, your own compute/storage and operational maintenance. AGPL-3.0 source-sharing obligations can apply to modified network-served versions; Enterprise features, commercial licensing and ParadeDB Cloud are separate.

Free allowance

Free-forever hosted customer event pipeline with 250,000 events/month, 16 SDK sources, 200+ cloud destinations and up to 10 team members.

Keep in mind

New accounts initially receive a 30-day Growth trial and must choose Free afterward. Free plan has fewer transformations and 3-hour warehouse syncs; data processing can stop after repeated monthly overages. Warehouse/destination provider charges are separate; do not confuse this managed Free plan with Elastic-2.0 self-hosted software.

Free allowance

BSD-3-Clause Python web crawling and structured data extraction framework, free for local or self-managed use without a software usage quota.

Keep in mind

You provide your own machine, network and storage; paid proxies, anti-bot services and hosted Zyte Cloud are not included. Respect target websites' terms, robots policies and rate limits.

Free allowance

MIT-licensed Node.js real-time bidirectional messaging library/server and clients, with no license fee, seat cap or software event quota when operated on your own infrastructure.

Keep in mind

You run and secure the Socket.IO server, TLS, scaling adapter and network; compute, bandwidth, Redis and optional hosted messaging providers are not included. This is not a vendor-operated free messaging cloud plan.

Free allowance

MIT-licensed desktop visual IDE and TypeScript runtime for designing, debugging and running AI-agent/prompt-chain graphs locally; no Rivet software seat or workflow usage charge.

Keep in mind

LLM calls, embeddings, speech APIs, remote execution and storage are not included and may require paid third-party API keys. This is the Ironclad desktop IDE, not the separate Rivet Actors orchestration product.

Free allowance

Self-hostable reverse-tunneling service and CLI for exposing local HTTP servers through a public URL, without software usage quotas; server AGPL-3.0 and client MIT.

Keep in mind

You supply and secure the public server, domain, bandwidth and TLS reverse proxy; the self-hosted server has no native HTTPS. AGPL-3.0 network-use obligations apply to modified server code; vendor-hosted service and paid custom domains are not part of this self-hosted offering.

Free allowance

Self-hosted Rust DNS server and resolver with DNSSEC and optional encrypted DNS transports; Apache-2.0/MIT software with no usage-based license quota.

Keep in mind

Operate your own DNS infrastructure, public IP/network, security updates and backups; no managed cloud DNS capacity or SLA is included. DNSSEC/DoH/DoT features depend on build and configuration.

Free allowance

MIT-licensed Go webhook gateway with durable capture, retries, dead-letter queue, replay and fan-out; SQLite by default or PostgreSQL, without software-imposed webhook quotas.

Keep in mind

Run and secure your own public server, TLS reverse proxy, authentication, storage, backups and bandwidth; no free vendor-hosted webhook capacity or SLA is included.

Free allowance

One app per verified account with 256 MB RAM, 0.25 vCPU, 3 GB persistent disk, 1 GB combined daily traffic, GitHub deploys and free HTTPS subdomain.

Keep in mind

Free public web address sleeps when idle; daily traffic cap and outbound firewall restrictions apply. No free managed database or public TCP/UDP port; email verification and activity conditions apply. Free-plan commercial use is not explicitly confirmed.

Free allowance

MIT-licensed SQL + Markdown business-intelligence framework; build and self-host interactive reports and dashboards without software seat or report quotas.

Keep in mind

Evidence Studio managed publishing and AI services are separate; bring your own data sources, static hosting, build compute and any paid database/API access. Free software does not include free cloud infrastructure.

Free allowance

MIT-licensed Python 3.10+ distributed task queue using PostgreSQL 13+; supports scheduled jobs, retries, locks and sync/async workers without software task quotas.

Keep in mind

Requires your own PostgreSQL database, worker processes, compute, monitoring and backups; hosted Postgres or infrastructure charges are separate. The project is seeking additional maintainers.

Free self-hosted software
Free allowance

AGPLv3 open-source network backup and recovery with file/database backups, catalog, restore, disk/tape and S3-compatible targets; no software seat or backup-job quota.

Keep in mind

Operate Bareos director, storage daemons, catalog database, clients and backup media yourself; hosting, object storage and optional vendor subscription/support cost extra. AGPLv3 source-sharing and notice obligations apply when required.

Free allowance

Apache-2.0 open-source WireGuard-based encrypted Kubernetes multi-cloud/multi-cluster network overlay, VPN peer access and add-on mode; no software node or peer quota.

Keep in mind

Self-operate Kubernetes nodes and networking; WireGuard support, routable UDP endpoints, cluster infrastructure and bandwidth are required. Kilo does not include hosted VPN servers or cloud compute.

Free allowance

Apache-2.0 open-source local business-intelligence tool with SQL/YAML data models, DuckDB/ClickHouse-backed exploration and dashboards; no local software seat or dashboard quota.

Keep in mind

Run Rill Developer on your own workstation and supply data/compute; external OLAP services, connectors and managed Rill Cloud deployment may incur separate charges. Local use does not include free managed cloud hosting.

Free self-hosted software
Free allowance

Apache-2.0 open-source distributed column-family database; no software license fee or vendor-enforced storage/query quota for self-operated deployments.

Keep in mind

Requires self-managed infrastructure and operational expertise, typically Hadoop/HDFS or compatible storage; compute, disks, networking, backups and support are not free.

Free allowance

Apache-2.0 open-source CLI and Go library; generate SBOMs for container images, directories and archives without a vendor-enforced scan quota.

Keep in mind

Runs on your own computer or CI runner; compute, CI and container registry costs are separate. Syft generates SBOMs rather than performing a full vulnerability assessment; Anchore commercial support is optional.

Free allowance

Apache-2.0 open-source eBPF runtime security and observability for Linux and Kubernetes; no vendor-enforced agent or event quota.

Keep in mind

Requires a compatible Linux kernel and privileges for eBPF, with Kubernetes/host operations and telemetry storage paid by the operator; security policies need careful testing.

Free allowance

Apache-2.0 open-source feature store with offline feature retrieval and online feature serving; no software license fee or vendor-enforced feature count quota.

Keep in mind

You operate the feature server and select online/offline stores; cloud warehouses, Redis/databases, infrastructure and managed services may incur separate charges.

Free allowance

AGPL-3.0-only open-source horizontally scalable Prometheus-compatible metrics storage; no vendor-enforced ingestion or retention quota in the self-managed software.

Keep in mind

Running Mimir requires self-managed compute and object storage, potentially significant operational costs; AGPL-3.0 network-source obligations may apply to modified deployments. Grafana Cloud pricing is separate.

Free allowance

MIT-licensed self-hosted AI answering engine with cited web results, bundled SearXNG search, and support for local Ollama models; no vendor-enforced software query quota.

Keep in mind

Run Docker and local LLMs on your own hardware; electricity, compute and hosting are not included. Optional OpenAI, Anthropic, Google or other hosted model APIs can incur separate charges. Formerly known as Perplexica; do not list both names separately.

Free allowance

1 static site on a droply.id HTTPS subdomain; 25 MB total storage, 5,000 visits/month, 5 GB bandwidth/month, 15 publishes/day.

Keep in mind

Free sites show Droply branding and are served noindex/nofollow; no custom domain or server-side code. Over-limit sites show a notice until quota resets, without automatic overage billing. Commercial-use terms not independently confirmed.

Free allowance

Free HTTPS hosting for small static websites on boomurl.me, up to 50 MB and 500 files per site; email-verified publishing.

Keep in mind

Free pages carry injected advertising/boomurl banner; static human-viewable websites only, no file lockers, hotlinking or CDN use. Provider may delete sites without notice and does not guarantee retention; banner removal costs $2 per site per 30 days. Commercial-use eligibility not explicitly confirmed.

Free allowance

Apache-2.0 open-source Docker service for environment-scoped feature flags and remote configuration, with REST API, dashboard and SQLite/libSQL; no vendor-imposed software seat, flag or request quota.

Keep in mind

You operate and pay for Docker/server, persistent storage, networking, backups and TLS; not a free vendor-hosted service. No built-in per-user targeting, percentage rollout or experiment analytics; follow Apache-2.0 notice requirements.

Free allowance

MIT OR Apache-2.0 licensed Rust AI agent runtime for local use, with pluggable model providers including local Ollama; no software usage or seat limit.

Keep in mind

Runs on your own hardware; external LLM APIs, hosting and messaging services may cost extra. The agent can execute tools, so configure approval and sandbox policies; ZeroClaw name/logo trademarks are separate from the software license.

Free allowance

2,000 search API requests/month with free API key at 5 req/s; anonymous access offers 1,000 requests/month at 1 req/s; monthly reset.

Keep in mind

Free API key requires email; anonymous quota is IP-bound. Requests above free quota return HTTP 429 unless pay-as-you-go is explicitly enabled; paid overage costs $5 per 1,000 requests with a spend cap. Commercial terms not independently confirmed.

Free allowance

MIT-licensed CLI for automated semantic versioning, release notes and package publishing in your CI pipeline; no vendor-imposed software quota on projects or releases.

Keep in mind

Runs in your own CI environment and needs Git/package-registry credentials. CI runner minutes, Git hosting, registry publishing and any third-party infrastructure are not included; protect release tokens and branch permissions.

Free allowance

Apache-2.0 open-source release automation that generates changelogs, version-bump pull requests, Git tags and GitHub releases from Conventional Commits; no software-imposed release quota.

Keep in mind

Requires your own CI runner or GitHub Action and GitHub API credentials. GitHub Actions minutes, repository/API limits and package publishing fees are separate; release PRs still require your configured review and merge controls.

Free allowance

Hosted $0/month Free plan with 500,000 SDK configuration syncs per month; unlimited local evaluations, flags, segments, projects, environments and seats; no credit card or trial expiry.

Keep in mind

Hosted-only; no self-hosted offering. SDKs poll for configuration (30-second default); syncs count against monthly allowance. Provider says no overage but may move accounts to another plan when exceeding quota; verify upgrade consent and business-use terms before relying on production billing. Free tier has no support SLA.

Free allowance

GPL-3.0 open-source configurable DNS forwarding software with downloadable binaries and Docker image; no vendor-enforced query, instance or user quota for self-hosted use.

Keep in mind

Operate your own router, container or server and configure trusted upstream DNS resolvers; software does not include managed DNS hosting, infrastructure, upstream paid DNS or an uptime guarantee. GPL-3.0 distribution obligations apply.

Free allowance

Apache-2.0 open-source DNS proxy server with DNS-over-HTTPS, DNS-over-TLS, DNS-over-QUIC and DNSCrypt; downloadable binaries and Docker image without vendor-enforced query or instance limits.

Keep in mind

You must operate your own DNS server, container or device and configure upstream resolvers and TLS certificates. Managed DNS hosting, compute, networking and any paid upstream resolver are not included; avoid exposing an unrestricted public resolver.