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mpz vs FolderPlay: catalog facts
mpz	FolderPlay
Free Free and open source under the GPL-3.0.	Free Free and open source under the GPL-3.0-or-later licence.
Windows, macOS, Linux	Linux
No library import, plays directly from folders Gapless playback, including single-file albums with CUE sheets	Respects your own folder layout instead of tags Native GTK4 interface written in Rust
Folder-based approach does not suit people who browse by tags or artists Relies on codecs installed on the system	No artist, album or genre views by design Small project with few contributors
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: GPL-3.0-or-later
No account needed	No account needed
Works offline	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.