CORS Proxy
Forward requests through a proxy to bypass browser CORS restrictions.
Read docs Updated 2026-06-16
What is CORS Proxy?
CORS Proxy is an intermediary service that receives client requests, forwards them to specified endpoints, and relays responses back while handling cross-origin constraints.
It is used by web developers who need to access external APIs from browser-based applications when the target servers lack appropriate CORS headers.
What you can build with CORS Proxy
Fetch third-party API data in browser apps
Call external REST endpoints that lack CORS headers from frontend JavaScript without triggering browser blocks.
Quickly test API responses during development
Proxy requests to staging or production APIs from local HTML/JS prototypes to inspect headers and payloads.
Embed public data feeds in static sites
Pull JSON from services like weather or news APIs into static HTML pages that would otherwise be blocked by same-origin policy.
Get started with CORS Proxy
- 1Identify the target URL you want to reach
- 2Prefix or route the request through the CORS Proxy endpoint
- 3Send the HTTP request from your browser code
- 4Read the relayed response and headers
- 5Handle any errors returned by the target service
CORS Proxy: pros & cons
Pros
- +No authentication required
- +HTTPS only
- +Simple request relay
- +Bypasses origin checks
Cons
- –Open access may attract abuse
- –No documented rate limits
- –Sensitive data should not be proxied
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Frequently asked questions
A service that accepts requests and forwards them to any target URL, returning the response without enforcing CORS origin checks.
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