API Tester (Online REST Client)
Send HTTP requests from your browser — any method, query params, headers, JSON or form body, bearer/basic/API-key auth — and inspect status, timing, headers and pretty-printed JSON. Export as cURL, JavaScript or Python.
How to use
- 1Choose the method and enter the URL.
- 2Add params, headers, a body or auth.
- 3Send and inspect the response, or copy the request as code.
Frequently asked questions
Why does a request fail here but work in Postman or curl?
Browsers only let web pages call APIs that allow it (CORS). Use the Code tab to run the same request with curl or from your server.
Are my tokens safe?
Requests go straight from your browser to the API; tokens are stored only in this browser's local storage.
Is there a timeout?
Yes — requests are cancelled after 15 seconds.