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JuK vs Quod Libet: catalog facts
JuK	Quod Libet
Free Free, part of the KDE applications.	Free The open-source application is available without a license fee.
Linux	Windows, macOS, Linux
Built-in tag editor with tag guessing from file names File renamer based on tag content	Flexible metadata searches and plugin support
Supports a limited set of formats: MP3, Ogg Vorbis and FLAC Designed for Linux and the KDE desktop	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.