TraceForge

Inspect, edit and replay HTTP requests, manage cookie profiles and page storage. A local-only debugging toolkit for web developers.

TraceForge is a lightweight debugging toolkit for web developers, built right into Chrome. Capture the requests your site makes, tweak them, and send them again, all without leaving the browser. CAPTURE & REPLAY • Record HTTP requests and responses from the current tab, including headers, request bodies and response bodies • Search and filter by method, and decode encoded values • Edit any request (method, URL, headers, body) and replay it instantly • Copy any request as a cURL command • Save requests you use often and come back to them later ROOKIE MODE • New to APIs? Use your app normally and TraceForge groups the requests into readable actions like "Update profile" or "Change setting" • Click an action to load it into the editor, so you can see exactly how your frontend talks to your backend COOKIE MANAGER • View the cookies for the site you're testing • Save them as named profiles and restore them later, which makes it easy to switch between test accounts • Secure and HttpOnly values stay hidden unless you turn on Developer Mode PAGE HELPER • Inspect a page's localStorage and sessionStorage, its forms and the scripts it loads • Clear site storage in one click to reset your app's state while testing PRIVACY FIRST • TraceForge asks for access one site at a time, only when you use a feature there • Everything stays on your device. No accounts, no analytics, no tracking, no servers • Sensitive headers like Authorization and Cookie are excluded by default Built for developers, QA testers and students learning how the web works. Use it on websites and accounts you own or are authorized to test.