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.

Want to have Fiddler automatically rewrite requests and responses, add or remove headers, or flag/ignore sessions based on rules you specify? Check out the FiddlerScript Cookbook.

Fiddler is a web debugging tool that allows you to monitor and modify HTTP and HTTPS traffic between your computer and the internet. It’s an invaluable tool for developers, QA engineers, and anyone …

Welcome to the GitHub repo for Fiddler Documentation. This repository contains the source content--written in Markdown--that we use to power the Fiddler Classic Documentation at …

May 14, 2025 · Fiddler, free download for Windows. Tool that intercepts and analyzes HTTP and HTTPS traffic to help diagnose and debug web application issues.

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.

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

While it's possible to manually capture and analyze web traffic using network monitoring tools or browser developer tools, dedicated tools like Fiddler offer advanced features and functionalities...

Fiddler is a debugging proxy server tool used to log, inspect, and alter HTTP and HTTPS traffic between a computer and a web server or servers. Fiddler was originally written by Eric Lawrence while a …

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 …