Featured app for Mac
A free versatile debugging tool
Fiddler Everywhere is a free web debugging proxy server tool that allows you to easily inspect all HTTP and HTTPS traffic between your computer and the internet. Originally written by Eric Lawrence and now actively developed by Telerik, this development tool can monitor internet traffic, create mock requests, and diagnose network issues. Aside from this software, there are also other handy Fiddler products such as Fiddler Classic, FiddlerCore, and Fiddler Cap.