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Harmonoid vs Quod Libet: catalog facts
Harmonoid	Quod Libet
Free Downloads are offered from the website and GitHub releases with no price listed.	Free The open-source application is available without a license fee.
Windows, macOS, Linux, Android, iOS	Windows, macOS, Linux
Runs on desktop and mobile platforms Broad format support through mpv and FFmpeg	Flexible metadata searches and plugin support
Focused on music, not video License terms are not stated on the homepage	Primarily designed around managing an audio library.
Downloadable app	Downloadable app
Closed source	Open source
License not stated	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 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.