Beautiful, cross-platform & open-source tools for debugging, testing and building with HTTP (S), on Windows, Linux & Mac.

Beautiful, cross-platform & open-source tools for debugging, testing and building with HTTP (S), on Windows, Linux & Mac.

Beautiful, cross-platform & open-source tools for debugging, testing and building with HTTP (S), on Windows, Linux & Mac.

HTTP Toolkit is a tool for testing, debugging & developing with HTTP and HTTPS. If you're looking to develop, test, or debug HTTP traffic, you're in the right place.

HTTP Toolkit includes built-in automatic setup and advanced support for Android, so you can debug and modify any HTTP (S) traffic in seconds.

HTTP Toolkit allows you to intercept HTTP & HTTPS traffic from almost any HTTP client. Once you're intercepting traffic from a client, you can explore & examine it to understand what it's doing, or rewrite …

HTTP Toolkit is a supercharged alternative to Chrome's developer network tab, designed for faster debugging and deeper control of all your HTTP traffic.

To inspect the traffic, you can use your browser built-in tools, but it's usually easier to use a dedicated HTTP debugger like HTTP Toolkit.

The Modify page allows you to rewrite traffic, simulate fake servers, test edge cases, or change real HTTP requests and responses in any other way you'd like. It shows a list of rules, which define how …

Precisely match interesting requests, then define your own static response or map local files, to test clients against any endpoint behaviour you can imagine. Use it to override real responses, or even to …