SoftPerfect Network Protocol Analyzer (formerly Softperfect Network Sniffer) is an advanced, professional tool for analyzing, debugging, maintaining and monitoring local networks and Internet connections. It is a network protocol analyzer or sniffer. It captures the data passing through your dial-up connection or network Ethernet card, analyzes the data and represents it in a readable form. Softperfect Network Sniffer is an useful tool for network administrators, security specialists, network application developers and all those who need a comprehensive picture of the traffic passing through their network connection or a segment of a local network.