API Tester

API Tester is a Postman-alike HTTP client that lives entirely in the browser. It builds and sends real requests with the native fetch API, no mock responses, and shows the real status, headers, body, timing and size that came back.

Requests organize into collections with folders, a history keeps everything sent, {{variable}} environments handle per-environment values, and every request converts to and from curl.

02Features

• —Real fetch() requests, real responses
• —Collections with folders and a request history
• —{{variable}} environments
• —Convert requests to and from curl
• —Status, headers, body, timing and size, all real