I am sure you are familiar with ‘LAN Settings’ under the ‘Connections’ tab of Internet (Explorer) Options: WinINet (The Windows Internet) enables applications to interact with FTP, and HTTP protocols to access Internet resources. How does it work?įiddler sits between your http client and http server listening on a port for http(s) traffic. On the Fiddler’s website there is also a Fiddler Extension repository that lists major Fiddler’s extensions. You can get the application from the Fiddler’s website along with tones of documentation, tutorial videos and so on. You can also debug traffic from popular devices like Windows Phone, iPod/iPad, and others.

NET language.įiddler is freeware and can debug traffic from virtually any application that supports a proxy, including Internet Explorer, Google Chrome, Apple Safari, Mozilla Firefox, Opera, and thousands more. Fiddler includes a powerful event-based scripting subsystem, and can be extended using any. Fiddler allows you to inspect traffic, set breakpoints, and “fiddle” with incoming or outgoing data. What is Fiddler?įiddler is a Web Debugging Proxy which logs all HTTP(S) traffic between your computer and the Internet. It is worth mentioning that everything I am writing here (plus a lot of things I cannot fit into this blog) can be found on the Fiddler website. In this article I will cover some of the basic features of Fiddler and in a future article I will build on this foundation and talk about more advanced features. It has been out for a few years now and it has millions of users.

You may find the slides, the video and more details hereįiddler is a very popular tool for web debugging. I covered these features in my presentation at DDD Brisbane.

Deciphering wireshark captures