API Tester

Test REST APIs with request/response management.

How to Test a REST API for Free, Right in Your Browser

1. Pick a method, enter the endpoint URL, and add any query parameters, headers, or a request body it needs.

2. Set authentication (Basic, Bearer token, or API key) if the endpoint requires it.

3. Click Send Request and read the response status, timing, size, and body across the Response, Headers, and Raw tabs.

4. Use Collections, History, and Environments to save requests and switch between configurations without retyping them.

Requests Go Straight From Your Browser

This tool sends requests directly from your browser to the API you specify - nothing passes through a Puenbann server first. That also means it's subject to the same CORS restrictions any browser-based request would face; APIs that block cross-origin requests will need a server-side tool instead.