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DropbearOpenSSH
Free

Free and open source under an MIT-style license.

 Free

Free and open source under a BSD-style licence.

macOS, Linux, Command line macOS, Linux, Self-hosted, Command line
  • Very small memory and disk footprint
  • Compatible with OpenSSH authorized_keys
  • Complete client, server and key management suite
  • Port forwarding and tunnelling built in
  • Distributed mainly as source code to compile yourself
  • Fewer features than OpenSSH
  • Command-line only with no graphical interface
  • Configuration options take time to learn
Downloadable app Downloadable app, Self-hosted
Open source Open source
License: MIT License: BSD-style
No account needed No account needed
Works offline Not stated if it works offline

Checked October 1, 2026

Checked September 23, 2026

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