Test REST APIs in your browser. Send GET/POST/PUT/PATCH/DELETE with query params, custom headers, Bearer/Basic/API-key auth, and inspect response headers, status, timing & size, a free Postman alternative.
The REST API Tester sends GET, POST, PUT, and DELETE requests with custom headers and JSON bodies right from your browser, a lightweight, no-login alternative to Postman. Responses are beautified so you can read them at a glance.
Calibrating API Tester......
Please wait a moment
Send GET, POST, PUT, PATCH, and DELETE requests with custom headers and body, then inspect the status, response, and timing. It's a lightweight alternative to heavier desktop clients for quickly checking an endpoint, reproducing a bug, or confirming an integration works.
Add the URL and choose an HTTP method.
Add authentication headers and a JSON body if the request needs one.
Fire it off and view the status and timing.
Inspect the beautified JSON response and headers.
Verify authentication headers, experiment with request payloads, and read raw JSON responses to pin down exactly where a call breaks. Because it runs client-side, it's perfect for fast, ad-hoc checks during development without configuring a separate tool.
Enter your API endpoint URL, select the HTTP method (GET, POST, PUT, DELETE), add any required headers and request body, then click Send. The formatted JSON response appears instantly.
Yes. Add Authorization headers (Bearer tokens, API keys, Basic auth) in the Headers section. Common headers like Content-Type and Accept are also supported.
Yes. Since the tool runs directly in your browser, it can make requests to localhost (e.g., http://localhost:3000/api/users) and local network addresses. No CORS proxy needed for local APIs.
Supports all standard HTTP methods: GET, POST, PUT, PATCH, DELETE, HEAD, and OPTIONS. You can also send custom request bodies in JSON format for POST and PUT requests.
This tool works instantly in your browser with no installation, no account, and no configuration. Postman has more advanced features (collections, environments, tests), but for quick API testing, this is faster and simpler.
Yes. Add an Authorization header with value 'Bearer YOUR_TOKEN' in the Headers section. For OAuth 2.0, first obtain your access token using your OAuth provider, then paste it as the Bearer token here. Basic Auth can be added as 'Basic BASE64_OF_USER_PASS'.
Enter the endpoint URL, pick a method (GET, POST, PUT, DELETE), add headers or a body if needed, and send, all from your browser. You get the status code, timing and formatted response, with nothing to install.
Yes. Add custom headers including Authorization: Bearer <token> (or an API key header) so you can test authenticated endpoints directly.
Yes. The response body is pretty-printed and validated, and you see the status code and response time, so you can debug an endpoint quickly.
Yes: add Bearer tokens or any custom headers your API requires before sending the request.
Tool Guides
Tool GuidesOffline POS is a desktop point-of-sale built for real shops — fast catalogue, cash-drawer discipline, customer credit, inventory and reports, all stored locally on your own machine. Optional FBR invoice reporting is built in for Pakistani retail.
Tool GuidesPhotos carry hidden data like GPS location and camera details. Here's why that matters for privacy and how to strip it before sharing.