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

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