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Kopia vs restic: catalog facts
Kopia	restic
Free Free and open source, with no paid edition.	Free Free and open source, with no paid edition.
Windows, macOS, Linux, Command line	Windows, 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	One static binary with no server, agent or database to install first Content-defined chunking means daily backups only transfer what changed
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; any graphical interface or scheduling comes from third-party projects Still pre-1.0, so the project does not yet guarantee backward compatibility across major versions
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License: BSD-2-Clause
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked September 20, 2026

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