Charles is a web debugging proxy application that runs on your own computer. Your web browser (or any other Internet application) is then configured to access the Internet through Charles, and Charles is then able to record and display for you all of the data that is sent and received. It features: SSL Proxying, Bandwidth Throttling, AJAX debugging, breakpoints to intercept and edit requests or responses, and more.
Web debugging proxy that displays Internet traffic from your PC.
Boost the performance of your applications with .NET profiling.
It can be used to generate GET, POST and HEAD requests.
SpyStudio is a powerful API Spy application that enables you to monitor
It is an open source web application security assessment tool.