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How to install and use Fiddler ?


Fiddler is a Web Debugging Proxy which logs all HTTP(S) traffic between your computer and the Internet. Fiddler allows you to inspect all HTTP(S) traffic, set breakpoints, and "fiddle" with incoming or outgoing data.

It provides a simple and straight-forward way to see raw HTTP data and issue requests.


Download the Fiddler Tool

Fiddler can be found at this URL:

  • Close all instances of Internet Explorer.
  • Start a new instance of Internet Explorer.
  • Click the Fiddler icon  in the Internet Explorer toolbar, or start Fiddler using the Start menu.
  • Use Internet Explorer's address bar to go to whatever site is having problems, and do whatever steps are needed to cause the problem to occur.
  • Verify that new lines (representing HTTP requests) are showing up in the Fiddler Web Sessions list.
  • Click File | Save | All Sessions... and save the .SAZ file to your desktop.
  • Wait for the sessions to be stored in the file.  This may take a minute; Fiddler's status bar will say "Archive Complete" when done.

Technology Affected


  • Windows 7
  • Windows 8
  • Windows 10


How to get more help

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