Compare software

rdiff-backuprsync-time-backup
Free

Free and open source under the GPL.

 Free

Free open-source script, with optional sponsorship.

Windows, macOS, Linux, Command line Linux, 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
  • Browsable dated snapshots of plain files
  • Hard links keep unchanged files from using extra space
  • No client-side encryption
  • Restoring very old versions means replaying many increments
  • Command-line only
  • No encryption or deduplication beyond hard links
Downloadable app Downloadable app
Open source Open source
License: GPL-2.0 License not stated
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked September 22, 2026

Checked October 2, 2026

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