Compare software

rdiff-backupBorgBackup
Free

Free and open source under the GPL.

 Free

Free and open source, with no paid edition.

Windows, macOS, Linux, Command line Linux, macOS, Command line
  • The newest backup is a plain mirror you can read without the tool
  • Reverse deltas keep history cheap while the current copy stays instant
  • Content-defined chunking that survives files being renamed, moved or shifted around
  • Authenticated AES encryption, so an untrusted backup server only ever sees ciphertext
  • No client-side encryption
  • Restoring very old versions means replaying many increments
  • 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.