Intercepter-NG Alternatives for Mac OS X

Wireshark is a leading open-source network protocol analyzer that empowers users to inspect and understand network traffic at a granular level. Widely used by network professionals, security experts, and developers for troubleshooting, analysis, software and communications protocol development, and education.

Ettercap is a powerful, open-source suite designed for Man-in-the-Middle (MITM) attacks on local area networks. It provides a versatile platform for network sniffing, content filtering, active and passive dissection, and injecting data into connections. Primarily used for penetration testing and security analysis.