Wireshark

Wireshark is a widely-used network protocol analyzer that captures and inspects network traffic in real time. It supports hundreds of protocols and provides detailed packet-level analysis. Analysts can filter, dissect, and decode packets to troubleshoot networks or investigate security incidents. Wireshark includes GUI tools for visualization and statistics, as well as CLI utilities for automated analysis. It is essential for network engineers, penetration testers, and incident responders who need deep insight into network communications.