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Nocturne vs Rufin: catalog facts
Nocturne	Rufin
Free Free and open source under the GPL-3.0-or-later.	Free Free and open source under the GPL-3.0-or-later licence.
Linux	Linux
Automatic synced lyrics Caching keeps large libraries responsive	Plays local files and music server libraries in one app Native desktop application rather than a web wrapper
Built around Navidrome as the library backend Linux only	Young project with a small user base Supported servers are not detailed in the research
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: GPL-3.0-or-later
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 October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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