API Inspector
NATIVE WINDOWS CLIENT

Easy-to-Use REST API Testing and Debugging Tool

A lightweight and easy-to-use Windows 11 tool for REST API testing and debugging. Send requests, manage authentication, view JSON, XML, and plain text responses, and log traffic to a text file or live view.


Download for Windows
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Join the growing community using API Inspector to test, debug, and ship REST APIs faster on Windows 11.

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Jari S.
Backend engineer

“API Inspector replaced three separate tools for me. The request builder and live log view are exactly what I need on Windows.”

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Minna K.
QA lead

“We use it across the QA team to validate endpoints before release. The HAR import alone saves hours every week.”

AL
Aapo L.
Solo founder

“Finally a native Windows API client that feels fast and stays out of the way. The HMAC tool is a nice bonus.”