Wireshark

Apple · Utility · Free & Open Source

Network protocol analyzer for capturing and inspecting traffic on macOS.

App Details

License: GPLv2
Platform: Apple
More Info: wireshark.org

Overview

Wireshark is the world's most widely used network packet analyzer. On macOS it captures live network traffic via pcap and lets you drill down into every field of every protocol from Ethernet to TLS.

Display filters, color coding, and stream following make it an indispensable tool for network debugging, security analysis, and protocol learning.