This is a free online HTTP request tester that requires no software installation. Supports GET, POST, PUT, DELETE, PATCH, HEAD, and OPTIONS methods.
Sending a GET Request: Enter the API address in the URL field (e.g., https://jsonplaceholder.typicode.com/posts/1), select GET, and click Send Request. GET is typically used for data retrieval with no request body.
Sending a POST Request: Select POST, enter JSON data in the Body tab (e.g., {"title":"foo","body":"bar","userId":1}), and add Content-Type: application/json header. POST is typically used for submitting data or creating resources.
Custom Headers: Click Add Header to include Authorization, Content-Type, Accept, or custom headers. Common presets are available for quick selection.
Viewing Responses: After the request completes, results display below including HTTP status code (e.g., 200 OK, 404 Not Found), response time, body (with JSON auto-formatting), and response headers.
API Debugging: Quickly test endpoints during RESTful API development, verify request parameters, headers, and response formats, and facilitate front-end/back-end collaboration.
Third-Party API Testing: Before integrating third-party APIs (weather, payment, maps), test their availability and response structures to reduce integration risk.
Learning and Teaching: Understand HTTP methods and RESTful principles through hands-on practice, observing status codes and response headers in real time.
HTTP Method Semantics: GET retrieves resources, POST creates, PUT fully updates, PATCH partially updates, DELETE removes, HEAD gets headers only, OPTIONS discovers supported methods. Semantic consistency leads to clearer API design.
Common Status Codes: 200 = success, 201 = created, 400 = bad request, 401 = unauthorized, 403 = forbidden, 404 = not found, 500 = internal server error, 502/503/504 = gateway/service errors.
CORS Restrictions: Browser same-origin policy limits cross-domain requests. If the target API lacks Access-Control-Allow-Origin, the browser blocks the response. Use CORS extensions, proxy servers, or desktop tools like Postman to bypass.
GET, POST, PUT, DELETE, PATCH, HEAD, and OPTIONS are supported, covering common RESTful API scenarios.
No. All requests are sent directly from your browser via the JavaScript fetch API. Data never passes through our servers, ensuring your privacy and security.
Due to browser same-origin policy (CORS), this tool can only directly request APIs that allow cross-origin access. For unsupported endpoints, consider using a browser extension or desktop tools like Postman.
Not in this version. For file upload testing, use Postman or curl command-line tools.
The browser fetch API default timeout is around 30-60 seconds (browser-dependent). Custom timeout settings are not currently supported.