HTTP Debugger Pro

HTTP Debugger Pro is a proxy-less HTTP sniffer, which can display HTTP(s) traffic from browsers and JAVA/.NET apps.

It can automatically highlight errors in traffic, and slow and large requests; you can also create custom highlighting rules easily. Traffic can be visualized in the the form of charts, where you can find slowest and largest requests, most requested domains, and content types.

HTTP Debugger contains built-in viewers for various data types, including HTTP header viewers, HTML/JS/CSS viewers with syntax highlighting, XML/JSON tree viewers, Cookies viewer, URL Params viewer, Images viewer, and HTTP Session Summary viewer.