API Request Tester

Test API endpoints with GET, POST, PUT, DELETE requests. A lightweight Postman alternative.

API Request Tester is a lightweight Postman alternative that lets you fire GET, POST, PUT, PATCH and DELETE requests straight from the browser. Enter a URL, choose the method, add headers, query parameters or a raw body in JSON format, and hit send to inspect the status code, response time, headers and payload in one panel. Saved environments let you swap base URLs and reuse authentication tokens across sessions, while history keeps every previous run one click away. Useful error messages point out malformed bodies, missing CORS headers or blocked mixed content instead of leaving you guessing. API Request Tester is free, needs no account and never stores your payloads outside the current session, so it suits quick backend debugging, webhook checks and learning REST basics.