A serverless platform for running JavaScript, TypeScript directly on Cloudflare's global edge network (in 330+ cities worldwide).
Code runs in lightweight V8 isolates (tiny, isolated sandboxes based on Chrome's V8 engine) — extremely fast startup (often <5–10 ms cold starts), low latency, and automatic scaling.
Handle HTTP requests, build APIs, rewrite responses, add logic at the edge (e.g., authentication, routing, caching), serve frontends, or act as middleware/entrypoints.