 It supports the Linux Audio Developer's Simple Plugin API (LADSPA), LV2 (only master branch, since 24.05.2020) and Virtual Studio Technology (VST) plug-ins (on Win32, Win64,or Wine32).It is free software, written in Qt and released under the GNU General Public License, version 2 (GPLv2).LMMS is available for multiple operating systems, including Linux, OpenBSD, macOS and Windows.