Free Alternatives to Fiddler

Discover the best free alternatives to Fiddler. Find the full list of free tools like Fiddler. Compare features, explore options and get the free similar tools for your need.

C Charles No reviews (0) Charles is a powerful tool for monitoring HTTP traffic. View all web requests and responses, including headers, cookies, and caching info. Ideal for debugging and security analysis. P Polypane No reviews (0) Develop responsive websites & apps with Polypane, a powerful browser. Create layouts for all devices simultaneously, offering unparalleled control and visibility. LB LT Browser No reviews (0) LT Browser: Debug your website's responsiveness across 50+ devices! Test mobile & tablet views, use Dev Tools & create custom profiles. Ideal for responsive design. R Requestly No reviews (0) Requestly: Powerful tool for intercepting and modifying network requests. Use this browser extension or desktop app to customize headers, redirect URLs, and mock API responses. HT HTTP Toolkit No reviews (0) Discover HTTP Toolkit, a powerful open-source HTTP(S) debugging proxy. Analyze traffic from Docker to Android & iOS with ease. Simple setup & insightful details. M mitmproxy No reviews (0) mitmproxy: Powerful SSL man-in-the-middle proxy with console interface for inspecting & editing HTTP traffic. Also includes mitmdump for TCP dump style functionality.