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Arq vs restic: catalog facts
Arq	restic
Paid Paid software with a 30-day free trial.	Free Free and open source, with no paid edition.
Windows, macOS	Windows, macOS, Linux, Command line
Back up to your own cloud storage or local disk End-to-end encryption	One static binary with no server, agent or database to install first Content-defined chunking means daily backups only transfer what changed
No Linux version Cloud storage is billed separately by your provider	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
Closed source	Open source
License not stated	License: BSD-2-Clause
Not stated if an account is needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 20, 2026

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