Best for

Developers debugging DNS, TCP, UDP, or TLS traffic who want a fast native Mac view.

Why it deserves attention

TCP Viewer captures live traffic with a native AppKit interface, then groups it by app, domain, and endpoint so busy captures are easier to read. It exports and reopens pcap or pcapng files, shows Wireshark-backed protocol details, supports structured filters, and includes an MCP server for agents. The app is GPL-2.0-or-later open source and built on PcapPlusPlus and libwireshark. The trade-off is that Wireshark still has broader protocol coverage and statistics, and TCP Viewer needs macOS 15 or later on Apple silicon.

Ratings & reviews

0 ratings

—/ 5

0 people rated this

Rating distribution

50

40

30

20

10

No ratings yet. Be the first to rate this tool.

Can replace

Wireshark

Related and alternatives

More in Developer utilities

Underrated

Aba Search and Replace

A Windows search-and-replace tool for regex, multi-file edits, timestamps, Base64, URLs, and JWTs.

WindowsPaidabareplace.com

Underrated

Agent Desktop

A CLI that lets AI agents read and operate desktop apps through the OS accessibility tree.

macOSWindowsOpen sourcegithub.com/vercel-labs/agent-desktop

Underrated

BBEdit

The Mac-native text editor that opens a multi-gigabyte log, greps it and doesn't blink.

macOSFreemiumbarebones.com