Fiddler Everywhere

Never Be Confined by Limitations When Debugging HTTP(S) Traffic.

Amplify your debugging efforts with a Web Debugging Proxy for any device or platform. Fiddler Everywhere is a pathway for all, supporting macOS, Linux and Windows.

Looking for Fiddler Classic, the original Windows-only version? Download it here

What is Fiddler Everywhere?

Fiddler Everywhere is a secure and modern web debugging proxy for macOS, Windows, and Linux.
Fiddler Everywhere is a powerful tool to modify the response before it reaches the browser to test and debug web applications.
Fiddler Everywhere integrates with your workflow, and facilitates the mocking of requests, and accelerates the diagnosis of network issues.
Fiddler Everywhere delivers a choreographed approach that is straightforward yet yields measurable time and cost-savings.  

What's Supercharged in Fiddler Everywhere

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composer
Overview Inspector
Robust Request and Response Mocking
collaboration
  • Sophisticated User Experience

    Style your Fiddler Everywhere application, choosing between the alluring Default Light, Default Dark, Light Blue, or Dark Blue themes.

  • Nimble API Composer

    Fiddler Everywhere's API Composer makes it easy to quickly compose, test, group, and organize your API requests. You can make a new request from scratch or edit a request already captured by Fiddler Everywhere.

  • Insightful, Elegant Overview Inspector

    Gain a whole new level of visibility when monitoring requests and completing a performance review. The new Overview Inspector comes with a range of widgets designed to up your performance game in a highly visual fashion.

  • Robust Request and Response Mocking (Rule Builder)

    Your power tool for mocking server responses and simulating real-life scenarios. With Rule Builder, you can create rules and automatically triggering a specific request based on the conditions you specify.

  • Amplified Team Collaboration

    Rely on user-friendly and secure collaboration within Fiddler Everywhere — no more manually exporting sessions or sending the captured traffic through email. Fiddler Everywhere lets you save captured traffic, add comments and share it with your colleagues — all without switching context.

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500,000 Companies Are Using Fiddler Today

Join these companies and the 4 million developers who are already building, running,
and debugging with Fiddler Everywhere.

Nasa, Visa, Microsoft Fox, Samsung, IBM Continental Airlines, Volvo
Download Free Trial

Where and How to Use Fiddler Everywhere

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4.4

G2.com User Reviews

Fiddler is used by tens of thousands of Users daily and they love it! Don’t just take our word for it. G2 Users have consistently rated Fiddler 4.4 out of 5 stars. G2 is a renowned peer-to-peer review site that aggregates user reviews for business software.

Users of G2.com provide unbiased user reviews after they objectively access business software.

Additional Tools and Solutions in the Fiddler Family

There’s a Fiddler Product for Every Need

Fiddler Classic

Original Fiddler Web Debugger tool — feature rich, functional and supported only on Windows.

FiddlerCore

Reliable and powerful .NET library allowing you to capture and modify HTTP and HTTPS traffic. 

Fiddler Cap

A lightweight companion tool to capture web traffic from end-users or from customer environments.

Fiddler Jam

A unified troubleshooting Chrome extension solution for support teams to report and fix bugs.

Fiddler Monthly Digest

Get latest updates on Fiddler delivered straight to your mailbox.

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Next Steps