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Fiddler (software)

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Original author(s)  Eric Lawrence
Fiddler (software)
Developer(s)  Eric Lawrence, Currently Telerik
Initial release  6 October 2003; 13 years ago (2003-10-06)
Stable release / 9 December 2016; 2 months ago (2016-12-09)
Operating system  Windows XP, 2003, Vista, 2008, 7, 8, 10, Linux (Beta)
Platform  .NET Framework 4.0 & .NET Framework 2.0

Fiddler is an HTTP debugging proxy server application written by Eric Lawrence, formerly a Program Manager on the Internet Explorer development team at Microsoft.



Fiddler captures HTTP and HTTPS traffic and logs it for the user to review (the latter by implementing man-in-the-middle interception using self-signed certificates).

Fiddler can also be used to modify ("fiddle with") HTTP traffic for troubleshooting purposes as it is being sent or received. By default, traffic from Microsoft's WinINET HTTP(S) stack is automatically directed to the proxy at runtime, but any browser or Web application (and most mobile devices) can be configured to route its traffic through Fiddler.


On 6 October 2003, Eric Lawrence released the initial official version of Fiddler.

On 12 September 2012, Eric Lawrence announced that Fiddler was acquired by Telerik and he would join the company to work on Fiddler on a full-time basis.

On 23 December 2015, Eric Lawrence announced he was leaving Telerik in favor of Google's Chrome security team. Telerik continues developing Fiddler now.


Fiddler (software) Wikipedia

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