• Free Lmits
• Worker
• py
• js

Free Lmits¶

https://developers.cloudflare.com/workers/platform/limits/ - CPU time per HTTP request 10 ms

Worker¶

https://developers.cloudflare.com/workers/languages/ - JavaScript + TypeScript - Python Workers - Rust

py¶

https://developers.cloudflare.com/workers/languages/python/ - beta @ 2026 March

js¶

https://developers.cloudflare.com/workers/tutorials/build-a-qr-code-generator/

npm create cloudflare@latest -- qr-code-generator

npx wrangler deploy