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TCP Viewer vs Termshark: catalog facts
TCP Viewer	Termshark
Freemium Free to download; a paid PRO license adds features such as the MCP server.	Free Free and open source under the MIT licence.
macOS	macOS, Linux, Command line
Wireshark decoding in a native Mac interface Opens saved PCAP and PCAPNG files by drag and drop	Wireshark-style analysis over an SSH session with no X forwarding Uses tshark, so dissection matches Wireshark exactly
Apple Silicon and macOS 15 or later only MCP integration requires the paid PRO tier	Requires tshark installed Fewer features than the Wireshark graphical application
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0-or-later	License: MIT
Not stated if an account is needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.