Compare software

bup vs rustic: catalog facts
bup	rustic
Free Free and open source.	Free The open-source application is available without a license fee.
macOS, Linux, Command line	Windows, macOS, Linux
Global deduplication across and within files Fast incremental saves	Uses the established restic repository format
Command line only Development discussion happens on a mailing list rather than GitHub issues	It is younger than restic and compatibility should be checked for your workflow.
Downloadable app	Downloadable app
Open source	Open source
License: LGPL-2.1	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 22, 2026

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