Network Protocol Analyzer

Wireshark - Wireshark Foundation (Wireshark)

Wireshark is the world''s foremost network protocol analyzer. It lets you see what''s happening on your network at a microscopic level. It is the de facto (and often de jure) standard across many industries and educational institutions. Deep inspection of hundreds of protocols, with more being added all the time. Live capture and offline analysis. Standard three-pane packet browser. Multi-platform: Runs on Windows, Linux, macOS, Solaris, FreeBSD, NetBSD, and many others. Captured network data can be browsed via a GUI, or via the TTY-mode TShark utility.