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Upterm vs tty-share: catalog facts
Upterm	tty-share
Free Free and open source.	Free Free and open source under the MIT license.
Windows, macOS, Linux, Self-hosted, Command line	macOS, Linux, Web, Command line
Guests join with a standard SSH client Works through NAT and firewalls	Participants can join from a browser without installing a client Supports read-only sessions
Command-line only, with no graphical interface Shares a terminal, not a full desktop	Internet sharing outside the host's NAT uses a proxy server The host tool targets Linux and macOS
Downloadable app, Self-hosted	Downloadable app, Web application
Open source	Open source
License not stated	License: MIT
No account needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 8, 2026

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