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Cog vs Quod Libet: catalog facts
Cog	Quod Libet
Free Free and open source, supported by donations.	Free The open-source application is available without a license fee.
macOS	Windows, macOS, Linux
Gapless playback and embedded CUE sheet support Plays a very broad range of formats, plus livestreams and HLS	Flexible metadata searches and plugin support
macOS only; the Windows and Linux version is still early Requires macOS 12 or later	Primarily designed around managing an audio library.
Downloadable app	Downloadable app
Open 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 24, 2026	Official website Full listing and sources Checked September 22, 2026

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