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Mutagen vs Unison: catalog facts
Mutagen	Unison
Free Free and open source.	Free The open-source application is available without a license fee.
Command line	Windows, macOS, Linux
Two-way sync tuned for code and build products Network forwarding to remote services	Handles updates made independently on both replicas
Aimed at developers rather than general file sync Command-line focused, with no graphical interface described	Conflicting edits may require a decision before synchronization.
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-3.0
No account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 22, 2026

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