Download Fiddler Classic

By entering your information, you unlock every feature and can get help with installation and quick-start resources. All information is protected for privacy.

Need Fiddler Everywhere for Mac or Linux?

Try the new Fiddler Everywhere. Built from scratch to run on all major platforms.

Download Fiddler Everywhere
Decoration

Getting Started with Fiddler Classic

System Requirements

  • Supported OS: Windows XP to Windows 10
  • Framework: Fiddler2 requires .NET v2, Fiddler4 requires .NET v4
  • Disk Space: 8MB
  • Processor: 1GHz
  • Memory: 2 GB+ recommended

Updating Fiddler Classic

Upon start, Fiddler Classic checks automatically for new versions. If you'd rather check for updates manually, set the option in Tools -> Fiddler Options


Check also:

Release History

More Fiddler Family Tools & Solutions

Fiddler Everywhere

A Modern Web Debugging Proxy Tool for Mac, Linux, and Windows.

Fiddler Jam

A Web-based End to end Troubleshooting Solution for Support Teams.

FiddlerCore

Traffic viewing and modification for .NET applications.

FiddlerCap

A desktop-based capture app for Windows.

More About Fiddler Classic

The free web debugging proxy for Windows

More About Test Studio

Automated functional, load,
and performance testing

More Free Trials

All free trials for Telerik products
and services