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BorgBackupbup
Free

Free and open source, with no paid edition.

 Free

Free and open source.

Linux, macOS, Command line macOS, Linux, Command line
  • Content-defined chunking that survives files being renamed, moved or shifted around
  • Authenticated AES encryption, so an untrusted backup server only ever sees ciphertext
  • Global deduplication across and within files
  • Fast incremental saves
  • Primarily a Unix tool; on Windows it needs WSL or Cygwin rather than a native build
  • Borg 2 is still in beta, ships breaking changes between betas and should not hold production backups
  • Command line only
  • Development discussion happens on a mailing list rather than GitHub issues
Downloadable app Downloadable app
Open source Open source
License: BSD-2-Clause License: LGPL-2.1
No account needed No account needed
Works offline Works offline

Checked September 20, 2026

Checked September 23, 2026

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