HTTP Toolkit

HTTP Toolkit is an open-source HTTP debugger and proxy for macOS, Windows and Linux used by developers to intercept, inspect and modify HTTP and HTTPS traffic. It lets developers capture traffic from applications, browsers, Docker containers, mobile devices and backend processes with zero-setup interception, then examine and edit requests and responses in detail. Features include content-type categorization, powerful filtering, breakpoints for pausing live traffic, mock response injection, and automated rewrite rules. HTTP Toolkit has been under active development for over eight years and serves over one million users worldwide.