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Core Tunnel vs autossh: catalog facts
Core Tunnelautossh
Freemium

Free for one host; Premium with unlimited tunnels starts at $9.99.

Free

Free and open source.

macOS Windows, Command line
  • Local, remote and dynamic port forwarding
  • Automatic reconnect after sleep or network loss
  • Restarts ssh automatically when a tunnel drops or stalls
  • Small C program with few moving parts
  • macOS 15 or later only
  • Free tier limited to one host
  • Command line only, with no graphical interface
  • Releases are infrequent
Downloadable app Downloadable app
Closed source Open source
License not stated License: MIT
No account needed No account needed
Not stated if it works offline Not stated if it works offline

Checked October 1, 2026

Checked October 2, 2026

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