LMMS app icon

Audio

LMMS

LMMS is a free digital audio workstation for Windows with a step sequencer, bundled synthesizers, VST plugin support and pattern-based song arrangement.

WindowsmacOSLinuxGPL-2.0-or-later

LMMS: a pattern-based studio that costs nothing

What it does

LMMS is an open source music production environment for Windows, macOS and Linux, modelled on the pattern-based workflow made popular by FL Studio. Songs are built from beats and basslines in a step sequencer, melodic parts in a piano roll, and samples or plugin instruments on a mixer with effects. It ships with a usable set of synthesizers including TripleOscillator, BitInvader and ZynAddSubFX-derived instruments, plus effects such as a limiter, reverb and EQ. The Windows installer is a single executable around thirty-five megabytes, and projects can be exported to WAV or OGG for delivery.

The workflow

Create a project, then add instruments to the sidebar and write patterns in the piano roll or the beat editor. Patterns are placed on the song editor timeline, where clips can be moved, copied and looped, and automation is drawn directly onto the same timeline as editable curves. The mixer routes everything to a master channel with per-channel effects, and the FX mixer supports sends for shared reverb or delay. Exporting goes through the render dialog, which can write individual tracks as stems for later mixing in another program.

Practical settings and limits

The audio settings page selects the backend and buffer; on Windows, SDL and PortAudio are the usual choices, and a buffer around ten milliseconds is a reasonable compromise between latency and stability. LMMS supports VST2 plugins but not VST3, so newer instruments may not load; the 64-bit build needs 64-bit plugins. The bundled synthesizers are functional rather than luxurious, and the ZynAddSubFX interface benefits from a larger window than the default. Some instrument presets rely on samples that must be unpacked from the included archive, so keep the installation folder in place after moving it.

Who should choose something else

Producers who need VST3, notation, or advanced audio editing should consider REAPER, which is more flexible and better maintained for professional work. Live performers who trigger loops on stage will prefer Giada, and anyone who needs a professional-grade bundled instrument library will find LMMS's collection modest. It remains an excellent choice for learning production, making chiptune and electronic sketches, and running on older machines without paying for software.

Best for
Beginners and hobbyist electronic producers who want a complete pattern-based studio with no licence cost.
Good to know
LMMS hosts VST2 plugins but not VST3, so check a plugin's format before relying on it.

How to get started

  1. Download the 64-bit Windows installer from the official LMMS download page.
  2. Run the installer, launch LMMS, and configure your audio backend and buffer size in the settings.
  3. Add an instrument from the sidebar and write a short pattern in the piano roll or beat editor.
  4. Drag the pattern onto the song editor timeline and repeat it to build a structure.
  5. Use the export dialog to render a WAV or OGG file, or to write individual stems.

Questions & answers

Is LMMS really free?

Yes. It is open source under the GNU General Public License and has no paid tier or feature unlocks.

Does it support VST plugins?

It hosts VST2 plugins on 64-bit Windows with the 64-bit build. VST3 is not supported, so check plugin format first.

Can I use it without musical training?

Yes, the step sequencer and piano roll are beginner-friendly, and the demo projects show how a track is assembled.

More in audio

View category