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Duplicati vs Duplicity: catalog facts
Duplicati	Duplicity
Free The backup client is free and open source. The vendor sells a separate commercial…	Free Free and open source under the GPL.
Windows, macOS, Linux	macOS, Linux, Command line
A very long list of supported destinations, including most mainstream cloud storage AES-256 or GnuPG encryption applied before anything is uploaded	Encrypts and signs everything before it leaves the machine Supports a very wide range of remote storage back ends
The stable and canary channels move at very different speeds, and the project spent years in beta Restores of very large backup sets can be slow, because the format is built around remote storage rather…	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: MIT	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 20, 2026	Official website Full listing and sources Checked September 22, 2026

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