Why can CORS block a request?
The request is sent by your browser, so the target server controls whether this origin can read the response.
HTTP/HTTPS Request Tester
Build HTTP requests in your browser and inspect the response.
Requests go directly from this browser to the target server you enter. Your Free Tools does not receive, proxy, store, or log the URL, headers, body, files, messages, or results.
HTTP/HTTPS Request Tester
Build HTTP requests in your browser and inspect the response. Supports methods, query parameters, headers, auth, body modes, file fields, timeout, response preview, report download, and cURL export.
HTTP testAPI requestCORScURLmultipart upload
Use cases
- - Debug browser-accessible API endpoints and CORS behavior.
- - Check auth headers, request bodies, form fields, and multipart uploads.
- - Capture a downloadable request and response report.
How to use
- 1Enter the target HTTP or HTTPS URL and choose a method.
- 2Add query parameters, headers, auth, body fields, or files as needed.
- 3Run the request and inspect status, headers, body, report, and cURL output.
Features
Debug browser-accessible API endpoints and CORS behavior.
Check auth headers, request bodies, form fields, and multipart uploads.
FAQ
Does Your Free Tools proxy requests?
No. Requests go directly between this browser and the target server.
Can restricted headers be sent?
Browsers block headers such as Host, Cookie, Origin, and User-Agent; the tool warns when they are ignored.