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MuLab vs LMMS: catalog facts
MuLab	LMMS
Paid Sold through the MuTools shop, with downloads available from the site.	Free Free and open source under the GPL 2.0.
Windows, macOS	Windows, macOS, Linux
Modular engine for building custom synths and effects Works standalone and as a plugin	Piano roll, beat sequencer, song editor and mixer in one free program Over fifteen instrument plugins included before you add anything
Smaller user community than mainstream DAWs Modular approach takes time to learn	No audio recording, so live instruments and vocals need another program Stable releases are infrequent; 1.2.2 dates from 2020
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-2.0
Not stated if an account is needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 21, 2026

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