Fiddler is a web debugging proxy tool for Windows, macOS and Linux. It has evolved from Fiddler Classic into a more robust and versatile product - Fiddler Everywhere.

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Download and install Fiddler Classic web debugging tool. Watch a quick tutorial to get started.

Fiddler Everywhere is a modern, easy-to-use web debugging proxy tool for Windows, macOS and Linux which captures, logs, monitors and inspects all HTTPS traffic, allowing you detailed visibility into …

Download Fiddler Everywhere, the professionally built and supported web debugging proxy tool for Windows, macOS, and Linux. Free and fully-functional trial.

Fiddler Everywhere is a modern, easy-to-use web debugging proxy for macOS, Windows, and Linux. It’s a high-performance cross-platform tool for any browser or system.

4 days ago · Fiddler Everywhere captures and logs all HTTPS, WebSocket, Server-Sent Events, gRPC, and Socket.IO traffic between your computer and the Internet and enables you to capture traffic from …

The 17th annual Fiddler’s Green Charity 5K Race 🌟 Run, walk, or just donate — every step counts 🏃‍♀️🏃‍♂️ Join us for a fun community fundraising event on Saturday, February 21, 2026. Register to …

🎫 Tickets go on sale Friday at 10am (but keep your eyes peeled for presale info starting Thursday). Secure your tix early, these will go fast! 🎫 🎫 A limited number of 2-day tickets are available pairing …

Fiddler Web Debugger is a serviceable web debugging proxy for logging all HTTP (S) traffic linking your computer to the internet, allowing for traffic inspection, breakpoint setting, and more.