Charles 4.2.1 - An easy to use proxy server, that runs on your computer, provides internet access to other computers and record and display all of the data that is sent and received.
Charles allows developers to view request, response and HTTP headers which may contain crucial information. It`s very useful for debugging the content of HTTPS sessions. Charles emulating modem internet connection and throttling bandwidth. Developers can view XML and JSON requests and responses as a tree or as text, edit requests to test different inputs and validate recorded HTML, CSS and RSS/atom responses using the W3C validator
whatsnew in Charles
screenshots of Charles
Windows: INTERNET and NETWORK / Server Software