Fiddler 4.4 beta

Fiddler enables you to inspect all HTTP traffic and "fiddle" with any data
4.2  (135 votes)
3.9 (See all)
  • How to print a picture with this program?
    This software doesn't have such an option. However, you can save your picture to your computer first, then print it.
  • Fiddler 2.0 is not working.
    Hi. Did you solve your problem?
  • My Fiddler doesn't work anymore. Can you help?
    Fiddler is a freeware monitoring application developed by Eric Lawrence. Uninstall your current Fiddler application using Add or Remove Programs and download... Read more


Fiddler can help you answer these questions, and many more. Fiddler is an HTTP debugging proxy that logs all HTTP traffic between your computer and the Internet. Fiddler enables you to inspect all HTTP traffic, set breakpoints, and "fiddle" with incoming or outgoing data. Fiddler is much simpler to use than NetMon or other network debuggers because it exposes only HTTP traffic and does so in a user-friendly format.

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