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Kopiabup
Free

Free and open source, with no paid edition.

 Free

Free and open source.

Windows, macOS, Linux, Command line macOS, Linux, Command line
  • A desktop app and a command line tool that share the same repository format
  • End-to-end encryption with keys you control, plus compression and deduplication
  • Global deduplication across and within files
  • Fast incremental saves
  • Backs up the files and folders you choose; it is not a whole-disk imaging tool
  • Still pre-1.0, so repository format changes between versions are possible
  • Command line only
  • Development discussion happens on a mailing list rather than GitHub issues
Downloadable app Downloadable app
Open source Open source
License: Apache-2.0 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.