HTTP API, Header and CORS Tester
About HTTP API, Header and CORS Tester
Send HTTP requests directly from your browser and inspect response headers, bodies and CORS outcomes without a server proxy or stored credentials.
How to use this tool
Enter an HTTP or HTTPS target, choose the method, and configure any needed headers or body before sending the request.
What to know
Requests go directly to the target. Browser CORS and forbidden-header rules apply; this tool cannot bypass them. Send requests only to services you are authorized to use.