Description: Network packet sniffer or simply packet sniffer is a packet analyzer software that monitors all network traffic. The proposed project is implemented in Java programming language, and using this application admin of the system can capture network packet and analyze data received/sent from/to the network. Developed as a desktop application, packet sniffer facilitates web-based monitoring of network packets which are traveling over the system network. The primary data captured by this software is the packets source and destination addresses.