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

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