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DuplicityBorgBackup
Free

Free and open source under the GPL.

 Free

Free and open source, with no paid edition.

macOS, Linux, Command line Linux, macOS, Command line
  • Encrypts and signs everything before it leaves the machine
  • Supports a very wide range of remote storage back ends
  • Content-defined chunking that survives files being renamed, moved or shifted around
  • Authenticated AES encryption, so an untrusted backup server only ever sees ciphertext
  • Long incremental chains make restores slow and fragile
  • Periodic full backups are needed to keep chains manageable
  • 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
Downloadable app Downloadable app
Open source Open source
License: GPL-2.0 License: BSD-2-Clause
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked September 22, 2026

Checked September 20, 2026

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