Cloudflare workerd Open-Source Workers Runtime

Explore this developer service’s ongoing no-cost allowance, restrictions and official documentation before deploying.

INCLUDED FREE ALLOWANCE

Apache-2.0 open-source JavaScript/WebAssembly Workers runtime for running HTTP event-driven applications on your own server or VM; no workerd software license fee or runtime usage quota.

Plan details

What do these plan and deployment labels mean?

Plan: Ongoing free allowance
Deployment model: Self-hosted
Credit card: Not required
Commercial use: Allowed
Added to directory (UTC): 2026-10-31
Last checked: 2026-10-31

Important restrictions

This is the self-hosted runtime, NOT the managed Cloudflare Workers free tier or a complete hosted edge platform. You supply and pay for servers, orchestration, storage and networking; some managed Workers platform features are not included.

View official documentation

Independent community listing, not affiliated with the provider. Always check the latest billing policy and quotas before enabling paid usage.