Rob--W/cors-anywhere

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

9376 stars · 6525 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

CORS Anywhere is a Node.js reverse proxy that adds CORS headers to proxied requests, allowing browsers to make cross-origin requests to servers that don't support CORS. The target URL is taken from the request path, and the proxy can be configured with origin whitelists, required headers, and cookie removal.

Use cases

• add CORS headers to a third-party API that doesn't support them
• make cross-origin requests from a browser to a server without CORS
• self-host a CORS proxy for frontend development
• bypass CORS restrictions when fetching resources client-side
• proxy HTTP requests through a Node.js server with CORS enabled
• test cross-domain API calls during web development

When to choose

• you need a lightweight, self-hostable CORS proxy in Node.js
• a third-party API lacks CORS headers and you can't modify the server
• you want fine-grained control over origin whitelists and required headers
• you're prototyping a frontend that needs cross-origin data

When to avoid

• you need a production-grade proxy with rate limiting and authentication at scale
• you want a zero-maintenance hosted service - the public demo requires opt-in and is rate-limited
• you need to proxy websockets or non-HTTP protocols
• security-sensitive contexts where routing traffic through a third-party proxy is unacceptable

Facets

service · maturity maintenance

proxy http-server middleware web-development apis backend developer-tools self-hosted cors cross-origin-requests reverse-proxy http-proxy api-development frontend-development heroku nodejs web-server docker

Member repositories

For agents

markdown · JSON · MCP: product_card(name="Rob--W/cors-anywhere")