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mpz vs DeaDBeeF: catalog facts
mpz	DeaDBeeF
Free Free and open source under the GPL-3.0.	Free Free and open source under the zlib licence.
Windows, macOS, Linux	Windows, macOS, Linux
No library import, plays directly from folders Gapless playback, including single-file albums with CUE sheets	Very low memory and CPU use compared with modern players Plugin architecture covers decoders, output, DSP and interface separately
Folder-based approach does not suit people who browse by tags or artists Relies on codecs installed on the system	The default interface is plain and takes configuration to get comfortable Library management is weaker than in players built around a database
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: Zlib
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 September 21, 2026

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