CORS Proxy
Get around the dreaded CORS error by using this proxy as a middle man
- Authentication
- No auth
- HTTPS
- Yes
- CORS
- Yes
- Category
- Development
- Documentation / URL
- https://github.com/burhanuday/cors-proxy
Overview
CORS Proxy relays requests with CORS headers so browsers can call APIs that lack CORS. Free tier works for browser requests.
⚠️ Gotcha (verified 2026-08): the free plan returns HTTP 403 “Server-side requests are not allowed on your plan” for server-side (non-browser) requests — use it from a browser, not from your backend.
Quick Start
Browser use (the intended use):
curl "https://corsproxy.io/?url=https%3A%2F%2Fexample.com"Authentication
None (free tier); paid plans remove limits.
Rate Limits & Notes
- Free tier: browser-only (server-side → 403, verified); paid plans allow server-side.
- Works by appending the encoded target URL as
?url=.... - Also self-hostable (open source, GitHub).
FAQ
Is CORS Proxy free? Free tier for browser use; paid for server-side (verified).
Why 403 from my server? Server-side requests are blocked on free (verified) — use a browser or self-host.
How do I use it?
https://corsproxy.io/?url={encoded-url}.
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