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autossh vs Core Tunnel: catalog facts
autossh	Core Tunnel
Free Free and open source.	Freemium Free for one host; Premium with unlimited tunnels starts at $9.99.
Windows, Command line	macOS
Restarts ssh automatically when a tunnel drops or stalls Small C program with few moving parts	Local, remote and dynamic port forwarding Automatic reconnect after sleep or network loss
Command line only, with no graphical interface Releases are infrequent	macOS 15 or later only Free tier limited to one host
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
No account needed	No account needed
Not stated if it 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 October 1, 2026

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