Download Fiddler

Choose your download based on the version of the .NET Framework installed on your PC. Users of Windows 8+ should choose Fiddler4.

Built for .NET 4

Download Fiddler4

Version, EXE, ~1mb
Released on Mar 20, 2015

Built for .NET 2

Download Fiddler2

Version, EXE, ~1mb
Released on Mar 20, 2015

Want to check what's coming up in next version?
Download Fiddler2 beta (built for .NET2, EXE, ~1mb)
Need a Linux or Mac build?
Check out the Alpha build (for Mono framework)

This short video is the fastest way to get started with Fiddler - Topics include download, installing the right version, launching the tool for the first time, and key features.

More Fiddler tools


Traffic viewing and modification for .NET applications


Capturing web traffic logs

FiddlerCap with Firefox

Capturing web traffic logs with Firefox

FiddlerScript Editor

Edit script rules for Fiddler


System Requirements

  • Supported OS: Windows XP to Windows 10
  • Framework: Fiddler2 requires .NET v2, Fiddler4 requires .NET v4
  • Disk Space: 8mb
  • Processor: 1ghz
  • Memory: 512mb (2gb+ recommended)

Updating Fiddler

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

Check Also

Release history

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