NetworkMiner is not available for Mac but there are plenty of alternatives that runs on macOS with similar functionality. The best Mac alternative is Wireshark, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to NetworkMiner and 15 are available for Mac so hopefully you can find a suitable replacement. Other interesting Mac alternatives to NetworkMiner are Charles (Paid), tcpdump (Free, Open Source), Ettercap (Free, Open Source) and PacketSled (Freemium).
Wireshark is the world's foremost network protocol analyzer. It lets you capture and interactively browse the traffic running on a computer network. It is the de facto (and often de jure) standard across many industries and educational institutions.
Charles is an HTTP proxy / HTTP monitor / Reverse Proxy that enables a developer to view all of the HTTP and SSL / HTTPS traffic between their machine and the Internet. This includes requests, responses and the HTTP headers (which contain the cookies and caching information).
tcpdump is a common packet analyzer that runs under the command line. It allows the user to intercept and display TCP/IP and other packets being transmitted or received over a network to which the computer is attached.
PacketSled is next generation network forensics and breach detection. Continuously monitor for advanced threats and policy violations missed by other defenses, then analyze and remediate in record time.
Working quietly on the Menubar, Surge is a high-performance HTTP/SOCKS5 proxy server. It is capable of intercepting and logging the summary of HTTP traffic, and meanwhile transmitting the traffic to other proxy servers according to the flexible rule system.