Ongoing free allowance
Static & frontend hosting
Vercel Hobby
100 GB Fast Data Transfer; included serverless functions
Hobby is restricted to personal, non-commercial projects; usage caps pause services.
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THE OPEN DEVELOPER DIRECTORY
Discover developer-friendly free tiers.
Find useful tools, compare their real free allowances, and understand billing caveats before you build. A practical reference for developers, created to make the free tier less confusing.
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119Services
17Categories
2026-10-09Latest provider check
THE SERVICE DIRECTORY
Explore free developer tools
Browse by category, compare allowances and check billing terms.
Refine resultsOnly show services that match
Ongoing free allowance
Static & frontend hosting
Netlify Free
300 credits/month on new credit-based plans; custom domains and SSL
Production deploys, requests, bandwidth and compute all consume credits; legacy accounts may differ.
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Ongoing free allowance
Static & frontend hosting
Cloudflare Pages
500 builds/month; up to 20,000 files/site on Free
Pages Functions consume the separate Workers quota; 20-minute build timeout.
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Ongoing free allowance
Static & frontend hosting
GitHub Pages
Static sites from public repositories; 1 GB site limit; ~100 GB/month soft bandwidth
Not permitted as free hosting for an online business, e-commerce site or commercial SaaS.
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Ongoing free allowance
Static & frontend hosting
Firebase Hosting (Spark)
10 GB stored; 360 MB/day transferred; custom domain and SSL
Firebase App Hosting is a different product and is not available on Spark.
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Ongoing free allowance
Static & frontend hosting
Azure Static Web Apps Free
100 GB bandwidth per subscription; 2 custom domains/app
Intended for hobby/personal apps; site becomes unavailable after exceeding bandwidth quota.
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Ongoing free allowance
Static & frontend hosting
Render Static Sites
Free static-site deployments with automatic TLS
Outbound bandwidth and build minutes share workspace quotas; excess usage may be billable.
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Ongoing free allowance
Backend & app hostingDeplexo Free Hosting
1 always-on app; 0.25 CPU; 128 MB RAM; 250 MB disk
Provider advertises no sleep; long-term reliability has not been independently verified.
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Ongoing free allowance
Backend & app hostingRender Free Web Services
750 shared free instance hours/workspace/month
Services sleep after inactivity; no persistent local disk. Not recommended for production.
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Ongoing free allowance
Backend & app hosting
Koyeb Free Web Instance
One Free instance: 512 MB RAM, 0.1 vCPU, 2 GB SSD
Limited regions; sleeps after an hour without traffic; no persistent volumes.
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Monthly credit
Backend & app hosting
Railway Free
$1 monthly credit after an initial up-to-30-day $5 trial
Usage beyond recurring free credit requires checking billing and available resources.
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Ongoing free allowance
Backend & app hosting
Deno Deploy Free
1 million requests/month; 20 GiB egress/month; 5 custom domains
Runtime, resource and team restrictions apply; inspect current deployment pricing.
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Ongoing free allowance
Backend & app hosting
Prisma Compute Free
1 million requests/month; 360 GB-hours memory/month; 4 active vCPU-hours/month; 10 GB outbound bandwidth/month
Scales to zero when idle; TypeScript apps (Node.js, Bun, Next.js); verify current limits before production use.
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Ongoing free allowance
Serverless & edge
Cloudflare Workers Free
100,000 requests/day; 10 ms CPU time per invocation
Functions on Pages share this quota; not a general-purpose always-on server.
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Ongoing free allowance
Serverless & edge
Google Cloud Run
2 million requests/month under eligible request-based billing
A Cloud Billing account is required; builds, logging and network usage can incur charges.
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Ongoing free allowance
Cloud compute & VPS
Oracle Cloud Always Free Compute
Eligible AMD and Arm Ampere A1 compute resources
Requires a valid payment card for identity verification; region capacity and inactivity policies apply.
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Ongoing free allowance
Cloud compute & VPSGoogle Compute Engine Free Tier
One eligible e2-micro VM/month; 30 GB standard disk; 1 GB eligible egress
Only selected US regions qualify; billing account required; other usage can be charged.
Card: RequiredView details
Time-limited offer
Cloud compute & VPS
AWS Free Plan
Eligible new accounts: up to six months or until Free Tier credits run out
NOT an indefinite free VPS; different AWS offers have separate eligibility and limits.
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Ongoing free allowance
Databases & caching
Convex Free
0.5 GB database storage; 1M function calls/month; 1 GB file storage
Separate database I/O, action compute, search and egress caps apply.
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Ongoing free allowance
Databases & caching
Supabase Free
500 MB Postgres database/project; 2 active projects; 1 GB file storage
Free projects pause after one week of inactivity; restore/backups are limited.
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Ongoing free allowance
Databases & caching
Turso Free
100 databases; 5 GB storage; 500M rows read and 10M rows written/month
Read/write usage and sync limits apply; re-check pricing before production use.
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Ongoing free allowance
Databases & caching
MongoDB Atlas Free Cluster
512 MB storage; one Free cluster per project
Limited regions, throughput and cluster capabilities; designed for development.
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Ongoing free allowance
Databases & caching
Upstash Redis Free
256 MB data; 500,000 commands/month; 10 GB monthly bandwidth
One Free database; claim temporary instant-created databases to prevent expiry.
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Ongoing free allowance
Databases & cachingUpstash Vector Free
One free index; 10,000 queries and 10,000 updates/day; 1 GB data; up to 1,536 dimensions
No uptime SLA; maximum 100 namespaces; daily query/update quotas apply.
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Ongoing free allowance
Databases & cachingCloudflare D1 Free
5 GB total storage; 5M rows read/day; 100k rows written/day
Daily limits stop queries on exhaustion; associated Workers usage has its own quota.
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Ongoing free allowance
Databases & cachingCloudflare Hyperdrive Free
100,000 database queries/day; up to 10 configured databases
Requires a separate PostgreSQL/MySQL origin and Workers; query quota resets at 00:00 UTC and excess queries fail; origin hosting may cost extra.
Card: Not requiredView details
Ongoing free allowance
Databases & cachingCloudflare Vectorize Free
30M queried vector dimensions/month; 5M stored vector dimensions; up to 100 indexes
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.
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Expiring free resource
Databases & cachingRender Free Postgres
1 GB database, one free instance/workspace
Database EXPIRES after 30 days; not suitable for durable production data.
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Ongoing free allowance
Databases & cachingFirebase Realtime Database (Spark)
1 GB stored; ~10 GB/month downloaded; 100 concurrent connections
Spark limits and feature eligibility vary; avoid assuming unlimited usage.
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Ongoing free allowance
Object storageCloudflare R2 Standard
10 GB-month storage; 1M Class A + 10M Class B operations/month
Free allowance covers Standard class only; operations beyond limits incur charges.
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Ongoing free allowance
Object storage
Google Cloud Storage Free Tier
5 GB-months in eligible US regions; 5,000 Class A and 50,000 Class B operations
Eligible regions only; Cloud Billing required; egress rules are destination-dependent.
Card: RequiredView details
Ongoing free allowance
Object storageOracle Object Storage Always Free
Always Free object-storage allowance on eligible OCI accounts
Card verification required; quotas and capacity can vary by service and region.
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Ongoing free allowance
APIs & developer toolsPR Quorum Free
50 AI code reviews/month across 2 repositories; max 3 inline comments/review
Default three-reviewer panel only; excess reviews are skipped until reset or upgrade.
Card: Not requiredView details
Ongoing free allowance
APIs & developer tools
Estuary Developer
10 GB data movement/month; 2 concurrent connector instances
Exceeding free quotas automatically starts a 30-day Cloud trial.
Card: Not requiredView details
Ongoing free allowance
APIs & developer tools
Resend Free
3,000 transactional emails/month; 100/day; up to 3 domains
Daily sending cap and deliverability/domain-verification requirements apply.
Card: Not requiredView details
Ongoing free allowance
APIs & developer tools
Better Stack Free
10 monitors/heartbeats; 1 status page
Free personal-project tier; alert channels and log retention have limits.
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Ongoing free allowance
APIs & developer tools
GitHub Actions
Standard GitHub-hosted runners free for public repos; 2,000 minutes/month on GitHub Free private repos
Larger runners and over-quota private-repo usage may be billed.
Card: Not requiredView details
Ongoing free allowance
Databases & caching
Neon Free Postgres
100 projects; 100 CU-hours/project/month; 0.5 GB storage/project
Scale-to-zero after inactivity; 5 GB public network transfer/project/month; verify project eligibility.
Card: Not requiredView details
Ongoing free allowance
Databases & cachingPrisma Postgres Free
1.01 GB storage; 200,000 operations/month; up to 50 databases
Monthly operations and storage caps on Free; verify current limits before production use.
Card: Not requiredView details
Ongoing free allowance
Databases & cachingCloudflare Workers KV Free
1 GB storage; 100k key reads/day; 1k key writes/day
Writes, deletes and list requests each have a 1k/day cap; operations fail when daily quota is exhausted.
Card: Not requiredView details
Ongoing free allowance
APIs & developer tools
Brevo Free
300 email sends/day; up to 100k contacts
Daily unused sends do not roll over; free emails carry Brevo branding; queues and transactional limits apply.
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Ongoing free allowance
APIs & developer toolsGitHub Codespaces (personal Free)
120 core-hours/month and 15 GB-month storage for GitHub Free personal accounts
Organizations have no included Codespaces quota; 2-core machines use two core-hours per elapsed hour.
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Ongoing free allowance
APIs & developer toolsCloudflare Email Routing
Free inbound custom-domain email forwarding and routing on Free/Paid plans
Not a free outbound transactional email API; Email Sending requires Workers Paid. Domain must use Cloudflare email routing.
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Ongoing free allowance
APIs & developer toolsGitHub Packages
Public packages are free; GitHub Free includes 500 MB private storage and 1 GB monthly transfer
Private quotas share storage with Actions artifacts; over-quota usage may be blocked or billed.
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Ongoing free allowance
Authentication & security
Doppler Developer
3 users free; 5 config syncs; 3 days of activity logs
Additional users cost $8/month; advanced SSO and audit retention require paid plans.
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Ongoing free allowance
Authentication & security
Auth0 Free
Up to 25,000 monthly active users; one custom domain and five organizations
Credit card not required to sign up; custom-domain feature requires card verification; tenant and connection limits apply.
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Ongoing free allowance
Authentication & security
Clerk Hobby
50,000 monthly retained users per app; unlimited applications
MRU is not equivalent to monthly active users; free plan has limited dashboard seats and short log retention.
Card: Not requiredView details
Ongoing free allowance
Authentication & securityCloudflare Turnstile Free
Up to 20 widgets/account; unlimited challenges; 10 hostnames/widget
Free tier has 7-day analytics lookback; remove-branding and advanced controls are Enterprise-only.
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Ongoing free allowance
Monitoring & observability
New Relic Free
100 GB data ingest/month; 1 full-platform user; unlimited basic users; 500 synthetic checks; at least 8 days default retention
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.
Card: Not requiredView details
Ongoing free allowance
Monitoring & observability
UptimeRobot Free
50 monitors with 5-minute checks and basic status pages
Longer monitoring intervals and limited alert integrations; faster 60-second checks require paid plan.
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Ongoing free allowance
Monitoring & observability
Grafana Cloud Free
10k active metric series and 50 GB logs ingested/month; 14-day retention
Free quotas are separate for logs, metrics, traces and users; limited retention and community support.
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Ongoing free allowance
Monitoring & observability
Sentry Developer
One user; 5,000 errors/month; 50 replays and 1 uptime monitor
Free plan is single-user; profiling, advanced integrations and additional event volumes require payment.
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Ongoing free allowance
Monitoring & observability
Splunk Observability Cloud Free Edition
Up to 15 hosts with all Observability Cloud platform features; no time limit
May be throttled and accounts inactive for 30+ days can be deactivated; use is limited to internal business purposes and not service-bureau processing for third parties.
Card: Not requiredView details
Ongoing free allowance
Product analytics
Tinybird Free
10 GB storage; 1,000 requests/day per organization; 0.25 vCPU (up to 3x burst); 1 query thread
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.
Card: Not requiredView details
Ongoing free allowance
Product analytics
PostHog Free
1M product analytics events/month; 5k session recordings/month; 1M feature flag requests
Free without a card for one project; usage stops at limits unless billing is enabled.
Card: Not requiredView details
Ongoing free allowance
DNS & CDNCloudflare DNS & CDN Free
Free authoritative DNS, CDN, universal SSL and DDoS protection
Free DNS zones created since Sep 2024 default to 200 records; free CDN is not a substitute for hosting.
Card: Not requiredView details
Ongoing free allowance
AI & ML platforms
Hugging Face Static Spaces
Free static Spaces for ML demo frontends and project showcases
Creating Gradio or Docker compute Spaces requires a paid plan; static hosting does not provide free persistent compute.
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Ongoing free allowance
AI & ML platforms
Google Gemini Developer API Free
Free input and output tokens for eligible Gemini models; Google AI Studio access
Free API eligibility and rate limits vary by model and region; free-tier content can be used to improve Google products.
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Ongoing free allowance
AI & ML platformsCloudflare Workers AI Free
10,000 Neurons/day across eligible inference models; resets at 00:00 UTC
Neuron consumption varies by model; selected models require Workers Paid or prepaid credits. Free allocation stops when exhausted; Workers limits apply separately.
Card: Not requiredView details
Ongoing free allowance
Databases & caching
Aiven Free PostgreSQL
One PostgreSQL service: 1 vCPU, 1 GB RAM, 1 GB disk
No VPC, static IP, pooling or SLA; 20 max connections; inactive services can be powered off.
Card: Not requiredView details
Ongoing free allowance
Backend & app hosting
Appwrite Cloud Free
2 projects; 5 GB monthly bandwidth; 2 GB storage; 750K executions/month; 75K MAU
Free projects pause after one week of inactivity; 1 database, 1 bucket and 2 functions per project.
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Ongoing free allowance
APIs & developer tools
GitLab CI/CD Free
400 compute minutes/month per GitLab.com Free namespace on hosted instance runners
Runner cost factors vary; quota is shared across the namespace; extra compute minutes may need purchase.
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Ongoing free allowance
Queues, workflows & schedulingCloudflare Queues Free
10,000 read/write/delete operations/day on Workers Free; 24-hour retention
Typical delivery uses three operations per message; retries add reads and Free retention is fixed.
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Ongoing free allowance
Queues, workflows & schedulingUpstash QStash Free
1,000 message delivery attempts/day; 50 GB monthly bandwidth; 10 schedules
Retries and topic subscribers count as additional deliveries; 1 MB message size and seven-day max delay.
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Ongoing free allowance
Queues, workflows & schedulingUpstash Workflow Free
1,000 workflow steps/day; 50 GB monthly bandwidth; up to 10 concurrent steps
Retries consume extra steps; 1 MB message size and seven-day maximum sleep.
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Ongoing free allowance
Queues, workflows & scheduling
cron-job.org Free
Free scheduled HTTP requests as frequently as every minute; no fixed job-count limit under fair use
Fair-use requirements apply; REST API is limited to 100 calls/day by default and jobs call public URLs.
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Ongoing free allowance
Queues, workflows & schedulingCloudflare Workflows Free
3,000 workflow steps/day and 1 GB-month state storage; request quota shared with Workers Free
10 ms CPU per invocation on Free; default instance-state retention is three days.
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Ongoing free allowance
Hosted searchTinyFish Search & Fetch
Search: 30 requests/min and 500/hour; Fetch: 150 URLs/min and 1,000/day
Agent and Browser are separately metered; Search/Fetch stay free with $0 Wallet.
Card: Not requiredView details
Ongoing free allowance
Hosted search
Algolia Free Search
10K searches/month; 50K records; 5K recommendation requests and 5K crawls/month
Higher usage and advanced search require paid plans; track record and request quotas separately.
Card: Not requiredView details
Ongoing free allowance
Hosted searchUpstash Search Free
One free search database; 20K monthly queries; maximum 200K documents
Query and indexed-document caps apply independently; higher volumes need a paid usage plan.
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Ongoing free allowance
Feature flags & gradual rollout
Flagsmith Free
50,000 flag API requests/month; one team member and one project; unlimited feature flags
Fair-use limits apply; multi-user administration, advanced scheduling and experimentation need paid plans.
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Ongoing free allowance
Feature flags & gradual rollout
LaunchDarkly Developer
Unlimited seats and feature flags; five service connections; 1,000 client-side MAU/month
Client MAU and service connections have separate caps; higher-scale rollout capabilities use paid plans.
Card: Not requiredView details
Ongoing free allowance
Object storageUpstash Blob Free
1 GB average storage/month; 10 GB bandwidth, 10,000 simple and 2,000 advanced operations/month
Free bucket stops serving requests when any quota is exhausted until its 30-day window resets; multipart uploads count as advanced operations.
Card: Not requiredView details
Ongoing free allowance
Databases & caching
Weaviate Cloud Free
One cluster/user; 100,000 objects, 1 GB RAM, 10 GB disk; 2,000 embedding requests/day and 1,000 Query Agent requests/month
One collection and up to three tenants; limited AWS regions, no backups or HA, best-effort availability.
Card: Not requiredView details
Ongoing free allowance
Queues, workflows & scheduling
Inngest Hobby
50,000 executions and 500,000 events/month; 5 concurrent steps; 3 users and 3 workers
An execution counts each function run plus its steps; free execution pauses on quota exhaustion; 24-hour trace retention and 7-day maximum sleep.
Card: Not requiredView details
Monthly credit
Queues, workflows & scheduling
Trigger.dev Free
$5 recurring monthly compute/run credits; 20 concurrent runs; unlimited tasks; 10 schedules
Free credit covers metered compute and run invocation; execution stops or queues after credits run out until upgrade; 1-day log retention.
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Ongoing free allowance
Databases & caching
Qdrant Cloud Free
One single-node cluster with 0.5 vCPU, 1 GB RAM and 4 GB disk
For testing and prototypes; limited regions, no high availability; suspends after 1 week of inactivity and deletes after 4 weeks unless reactivated.
Card: Not requiredView details
Ongoing free allowance
Serverless & edgeCloudflare Durable Objects Free
100,000 Durable Object requests/day; 13,000 GB-s compute/day; up to 5 GB SQLite-backed storage/account
Workers Free supports only SQLite-backed objects; operations fail when daily quotas are exceeded; Workers request limits apply separately.
Card: Not requiredView details
Ongoing free allowance
APIs & developer tools
CircleCI Free
30,000 credits/month; up to 5 active users; 1 GB network transfer and 2 GB-month storage
Free credits expire monthly and do not roll over; resource classes consume credits at different rates; personal builds stop when credits reach zero.
Card: Not requiredView details
Ongoing free allowance
Backend & app hosting
Val Town Free
100,000 runs/day; unlimited public vals; 2,500 vals; cron schedules as often as every 15 minutes
New vals on Free are public; no custom domains; 1-minute execution timeout and 3-day log retention.
Card: Not requiredView details
Ongoing free allowance
Queues, workflows & schedulingSimpleQ Free
30,000 outbound webhook attempts/month; 5 queues; up to 5 attempts/job; 3-day job retention
Each dispatched webhook POST, including retries and backpressure responses, counts as an attempt; backpressure waiting is free. Commercial-use terms need confirmation.
Card: Not requiredView details
Ongoing free allowance
Tunneling & networking
ngrok Free
3 online endpoints; 1 GB transfer and 20,000 HTTP/S requests/month; 5,000 TCP/TLS connections/month
HTTP/S interstitial; $5 one-time usage credit expires after one year; no usage beyond credit; custom domains require paid plan.
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Ongoing free allowance
Queues, workflows & schedulingWindmill Cloud Community
1,000 cloud executions/month; no credit card required
Cloud hosted in US; self-hosted Community Edition is a separate option; commercial-use conditions need confirmation.
Card: Not requiredView details
Ongoing free allowance
Monitoring & observabilityAxiom Personal
500 GB data loading/month; 10 GB-hours query compute/month; 25 GB storage; 30-day retention
Intended for individuals and small projects; soft dataset, field and query-concurrency limits; commercial use unconfirmed.
Card: Not requiredView details
Ongoing free allowance
Webhooks & event deliveryHookdeck Developer
10,000 events/month; 100,000 discarded requests/month; 5 events/second per destination; 3-day event retention
One user; retries included. After 10,000 events, dashboard locks until next billing period or upgrade; excessive overages may stop processing.
Card: Not requiredView details
Ongoing free allowance
Webhooks & event deliverySvix Free
Up to 50,000 messages/month; 50 messages/second; 7-day payload retention
Free plan targets developers testing or setting up first webhooks; retries and filtered messages do not count; no stated uptime SLA.
Card: Not requiredView details
Ongoing free allowance
Tunneling & networking
Tailscale Personal
Up to 6 users; unlimited user devices; 50 tagged resources; 1,000 ephemeral-resource minutes/month
Personal plan is non-commercial only; business/custom-domain signup enters a business trial by default; additional tagged resources are paid.
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Ongoing free allowance
Databases & cachingPinecone Starter
2 GB vector storage; 2M write units and 1M read units/month; up to 5 indexes
AWS us-east-1 only; 1 GB egress/month; 1 project and up to 2 users; no uptime SLA. Monthly read/write quotas reset each month.
Card: Not requiredView details
Ongoing free allowance
Databases & cachingMotherDuck Lite
10 GB storage and 10 Pulse compute CU-hours/month; up to 3 internal active users and 2 service accounts
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.
Card: Not requiredView details
Ongoing free allowance
Monitoring & observabilityOpenstatus Hobby
1 uptime monitor; 1 status page with 3 components; checks every 10 minutes
Free plan is limited to one monitor and one status page; faster checks and larger monitoring quotas require a paid plan.
Card: Not requiredView details
Ongoing free allowance
APIs & developer toolsCloudflare Browser Run Free
10 minutes of browser time/day; up to 3 concurrent browser sessions
Workers Free plan required; browser time resets daily, session timeout is 60 seconds and new sessions are rate-limited.
Card: Not requiredView details
Time-limited offer
Backend & app hostingKinsta WordPress First Month
First month free for eligible new customers on select managed WordPress plans; Single 20GB includes 1 WordPress install, 20 GB server bandwidth/month, 10 GB storage and 125 GB CDN bandwidth/month.
Not an ongoing free tier. Selected plans only; Single 20GB renews at $35/month on monthly billing after the first month, excluding taxes. Confirm eligibility, payment requirements and cancellation terms before signing up.
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Ongoing free allowance
Static & frontend hostingSevalla Static Site Hosting
100 static sites/account; 600 build minutes/month; 100 GB bandwidth/month/account; 1 GB/site size limit
Fair-use limits apply; usage beyond free allowances may incur charges. Confirm card requirements and commercial-use terms with provider.
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Ongoing free allowance
Static & frontend hostingShipvela Hobby
3 projects; 20 publishes/month; custom domains and managed HTTPS
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.
Card: Not requiredView details
Ongoing free allowance
APIs & developer toolsNovu Free
10,000 workflow runs/month; up to 20 workflows; 2 environments (Dev + Prod); up to 3 team members
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.
Card: Not requiredView details
Ongoing free allowance
Webhooks & event deliveryWebhooker Free
10,000 inbound events/month; 3 sources; 9 shared destinations; 1 workspace member; 14-day event retention
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.
Card: Not requiredView details
Ongoing free allowance
Feature flags & gradual rolloutFeatureflip Solo
1 project; 10 flags; 2 environments; 1 developer; unlimited evaluations
7-day audit logs and one developer on Solo; larger teams, more projects/environments and longer audit retention require paid plans.
Card: Not requiredView details
Ongoing free allowance
Monitoring & observabilityAppSignal Free
30,000 application requests/month; 1 GB logging; 5-day retention; unlimited users, teams, applications and dashboards
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.
Card: Not requiredView details
Ongoing free allowance
Monitoring & observabilityHoneycomb Free
20 million events/month; 100 million metrics data points/month; unlimited seats; unlimited querying
SLOs and Service Map are not included on Free. Free support is limited to account support. Commercial-use terms need confirmation.
Card: Not requiredView details
Ongoing free allowance
Feature flags & gradual rolloutFlagify Free
2 projects/workspace; unlimited flags; 3 environments; 3 seats; 75,000 evaluations/month; 50 AI messages/month
Free plan is aimed at side projects and small teams; paid tiers add higher evaluation quotas and advanced controls.
Card: Not requiredView details
Ongoing free allowance
APIs & developer toolsReqKey
100,000 requests/month; 1,000 API keys; unlimited APIs; 1 workspace member
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.
Card: Not requiredView details
Ongoing free allowance
Monitoring & observabilityLogtrics
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
Free plan limits usage to 1 app and 1 team member; AI RCA and AI Session Summaries are limited to 3 each per month.
Card: Not requiredView details
Ongoing free allowance
APIs & developer toolsMockHive Free
3 collections; 100 records each; 1,000 GET requests/month; 50 POST inserts/day
No production base URL on Free; paid plans unlock higher limits
Card: Not requiredView details
Ongoing free allowance
Feature flags & gradual rolloutDevCycle Free
Up to 1,000 client-side monthly active users; unlimited seats and feature flags
Client-side MAU usage is capped on Free; confirm server-side and experimentation usage limits before scaling.
Card: Not requiredView details
Ongoing free allowance
APIs & developer toolsDATPAQ Free
250 API requests/month; full API catalog, CLI and MCP server
Over-limit grace period may lead to billing; monitor usage
Card: Not requiredView details
Ongoing free allowance
APIs & developer toolsDataNest Basic Free
100 requests/month per API across 20 APIs
Free tier hard limit; RapidAPI subscription used
Card: Not requiredView details
Ongoing free allowance
AI & ML platformsMastra Platform Starter
100K observability events; 24 CPU hours; 10 GB egress per month
Usage beyond included allowance is pay-as-you-go; persistent server is paid
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Ongoing free allowance
Feature flags & gradual rolloutGrowthBook Cloud Starter
3 users, 1 project, unlimited feature flags and experiments
Advanced governance and additional projects require paid plan
Card: Not requiredView details
Ongoing free allowance
Webhooks & event deliveryHook0 Developer Free
100 events/day; 1 application, 1 developer, 7-day retention
Over-quota events rejected with HTTP 429
Card: Not requiredView details
Ongoing free allowance
Monitoring & observabilityPingZen Free
55 monitors; 1-minute check interval; 23 protocols; 3 alert channels
Confirm alert and monitoring retention limits before production reliance
Card: Not requiredView details
Ongoing free allowance
Feature flags & gradual rolloutZenmanage Free
500 monthly active contexts; unlimited flags, projects and users
Lifecycle reporting and advanced reporting require paid Team plan
Card: Not requiredView details
Ongoing free allowance
Monitoring & observabilitySteadyStack The Initiate
50 monitors; 3-minute checks (1 minute for first 10); 1 public status page
Launch cohort grandfathered terms; 3-day log retention
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Ongoing free allowance
APIs & developer toolsBotoi Free
1,000 API requests/day; 10 requests/minute; 150+ endpoints and MCP server
429 responses on quota exhaustion; resets midnight UTC
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Ongoing free allowance
Databases & cachingDBGorilla Free
1 single-host cluster; 50 Gorilla Credits/month; 7-day retention
Initial 30-day Pro trial reverts to Free; auto-reload of purchased credits may incur charges
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Ongoing free allowance
Monitoring & observabilityCheckly Hobby
10 uptime monitors; 1,000 Browser check runs and 10,000 API check runs/month; 1 user; 7-day raw data retention
Hobby is intended for personal projects and learning; 1 user and 7-day raw data retention; monitoring frequency and check runs are capped.
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Ongoing free allowance
APIs & developer toolsFormbricks Cloud Hobby
250 survey responses/month; 1 workspace; link and in-product surveys; full API access including MCP
Cloud Hobby includes Formbricks branding; response cap is 250/month; self-hosted Community Edition is a separate option; explicit commercial-use terms not confirmed.
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Ongoing free allowance
Backend & app hostingBotkeep Free
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
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.
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Ongoing free allowance
Authentication & securityHanko Cloud Starter Free
10,000 monthly active users; 2 projects; passkeys, passwords/passwordless, social SSO, MFA, custom domain
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.
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Ongoing free allowance
APIs & developer toolsSuprSend Free
10,000 notifications/month; unlimited notification channels and team members; in-app feed, workflow branching, lists and broadcasts
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.
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