Fiddler is a web Debugging Proxy logs all HTTP(S) traffic between your computer and the internet, allowing inspection of traffic, set breakpoints, and more.

Fiddler is a Web Debugging Proxy which logs all HTTP(S) traffic between your computer and the internet. Fiddler allows you to inspect traffic, set breakpoints, and "fiddle" with incoming or outgoing data. Fiddler includes a powerful event-based scripting subsystem, and can be extended using any .NET language.Fiddler will debug traffic from virtually any application that supports a proxy, including Internet Explorer, Google Chrome, Apple Safari, Mozilla Firefox, Opera, and thousands more. You can also debug traffic from popular devices like Windows Phone, iPod/iPad, and others.

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