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Upterm vs sshx: catalog facts
Upterm	sshx
Free Free and open source.	Free Free to use; the site lists no paid plans.
Windows, macOS, Linux, Self-hosted, Command line	Windows, macOS, Linux, Web, Command line
Guests join with a standard SSH client Works through NAT and firewalls	Share a terminal with just a link End-to-end encrypted sessions
Command-line only, with no graphical interface Shares a terminal, not a full desktop	Needs a network connection to the relay service Giving others shell access carries obvious security risk
Downloadable app, Self-hosted	Downloadable app, Hosted service
Open source	Open source
License not stated	License not stated
No account needed	No account needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

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