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KBackup vs Kopia: catalog facts
KBackup	Kopia
Free Free and open source under the GPL-2.0-or-later licence.	Free Free and open source, with no paid edition.
Linux	Windows, macOS, Linux, Command line
Profile files define included and excluded folders and files Backs up to local drives or any remote URL	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
Linux only Plain tar archives rather than deduplicated or encrypted snapshots	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
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0-or-later	License: Apache-2.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 20, 2026

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