Cloudflare launches Worker Previews with per-branch environments
Cloudflare introduced Worker Previews, giving each Git branch its own isolated, production-like environment with a stable URL, its own configuration and state. Previews are created with npx wrangler preview, and hundreds can run concurrently without touching production traffic. The feature targets agent-driven development.
- Each Git branch gets an isolated environment with a stable URL
- Previews are created via npx wrangler preview, hundreds run concurrently
- Wrangler creates separate Durable Object namespaces and Container apps per preview
- Limitation: service bindings still call the bound Worker's production deployment
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