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Déjà Dup vs Duplicity: catalog facts
Déjà Dup	Duplicity
Free Free and open source under the GPL, part of the GNOME project's apps.	Free Free and open source under the GPL.
Linux	macOS, Linux, Command line
Encrypts, compresses and schedules backups with almost no configuration Incremental, so you can restore from any particular past backup	Encrypts and signs everything before it leaves the machine Supports a very wide range of remote storage back ends
Personal files only; the project says it does not support complete system recovery Linux and GNOME only	Long incremental chains make restores slow and fragile Periodic full backups are needed to keep chains manageable
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-2.0
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 21, 2026	Official website Full listing and sources Checked September 22, 2026

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