CommView is a program for monitoring Internet and Local Area Network (LAN) activity capable of capturing and analyzing network packets. It gathers information about data passing through your Ethernet, Wireless Ethernet, or dial-up adapter and decodes the analyzed data. With CommView you can see the list of network connections and vital IP statistics and examine individual packets. Packets are decoded down to the lowest layer with full analysis of the most widespread protocols. A flexible system of filters makes it possible to drop packets you don't need or capture only those packets that you wish to capture.

Other features include configurable alarms, import and export of capture files in many formats, HTML reports, TCP session reconstruction, open plug-in interface, custom packet generation, remote monitoring, and multilanguage interface.

The latest version features capturing packets on the loopback interface, Token Ring support, and many other enhancements.