Wireshark is the world's foremost network protocol analyzer, and is the standard in many industries. It is the continuation of a project that started in 1998. Hundreds of developers around the world have contributed to it, and it is still under active development. It is cross-platform, features both GUI and CLI interfaces, and supports deep analysis of hundreds of protocols.
Linux, Linux Console, Linux Gnome, Linux GPL, Linux Open Source, Mac OS X, Unix, Win7 x32, Win7 x64, WinServer, WinVista, WinVista x64, WinXP, Other
Wireshark development team