Free CORS Proxy Tester
Fetch any URL through a CORS proxy and see the response — right in your browser.
Paste a URL and fetch it through the CORS proxy to see the response your browser would otherwise block with a “blocked by CORS policy” error.
Ready to use it in code? The CORS Proxy API gives your front-end reliable, SSRF-hardened cross-origin fetches.
Need this in your app?
This tool runs on the CORS Proxy & Web Toolbox API — drop it into your product with a few lines of code.
See the API → Get it on RapidAPI ↗Frequently asked questions
Why am I getting a CORS error?
The target server doesn't send an Access-Control-Allow-Origin header, so the browser blocks your JavaScript from reading the response. A CORS proxy adds that header.
Can I use this in production?
Use the API (via RapidAPI) for production traffic — it's rate-limited, hardened, and metered.