Open MMP files in your browser
The project LMMS saves, shared on the LMMS Sharing Platform and in forums. Open one right here as its Song Editor and hear its notes. Nothing leaves your device.
Or drop it anywhere on this page
What you'll see
Your project opens as its arrangement: the tracks down the left in their colors, and their clips along the bars with their notes drawn small and the waves of their audio, under the tempo and markers.
- Every track and clip • Zoom from the whole song to a beat
- Plugins and samples • A tab each, missing samples marked
- Play • The notes in General MIDI sounds, Audacity's own mix
- Export • Save as MIDI, WAV, MP3 or CSV
About MMP
LMMS, first the Linux MultiMedia Studio, is a free, open source app for making music on Windows, the Mac and Linux, with synths of its own, a beat sequencer and VST plugins through VeSTige. Its projects are .mmp files, or .mmpz when compressed.
An MMP is XML: the Song Editor's instrument, Beat/Bassline, sample and automation tracks with their patterns and notes, each instrument's plugin and settings, the FX Mixer's channels and effects, the tempo, the time signature and the project's notes. An MMPZ is the same XML compressed with zlib.
Filepeek reads both in your browser. The Song Editor opens with each track in its color and its patterns along the bars, notes drawn small, and Beat/Bassline tracks with their beats. Plugins lists every instrument and effect, LMMS's own, a VST through VeSTige or LADSPA, Samples which sample files it uses and which are here, and Play plays the notes with General MIDI instruments picked by each instrument's name. Export saves the notes as MIDI and the lists as CSV.
LMMS project
.mmp • .mmpz
Format
- MIME type
- application/x-lmms-project
- Made by
- LMMS
Inside the file
- Holds
- Tracks, patterns, instruments and effects
- Beats
- Beat/Bassline tracks
- MMPZ
- The same, compressed with zlib
- Format
- XML
Opens in every browser
Filepeek opens MMP and MMPZ files from LMMS 1.0 on in Chrome, Edge, Firefox and Safari. On their own, browsers only download them.
- YouChromeOpens through Filepeek
- YouEdgeOpens through Filepeek
- YouFirefoxOpens through Filepeek
- YouSafariOpens through Filepeek
Apps that open MMP
- WindowsLMMS, free
- MacLMMS, free
- iPhone and iPadNo app opens it
- AndroidNo app opens it
Questions
How do I open an MMP or MMPZ file?
Drop it on this page or press Peek an MMP. It opens as its Song Editor in your browser, on Windows, a Mac, an iPhone or Android, with nothing to install.
What's the difference between MMP and MMPZ?
Only the packing: an MMPZ is the MMP's XML compressed, so it's smaller. Filepeek opens both the same way.
Why doesn't it sound like the song?
An LMMS project keeps the notes and the instruments' settings. Filepeek plays the notes with General MIDI instruments picked by each instrument's name, drums as drums, so you hear the parts and their timing, not LMMS's synths. Sample tracks stay silent.
How do I get the MIDI out of an LMMS project?
Open it, choose Export, then Save the notes as MIDI. Each instrument's notes become a track, Beat/Bassline patterns where the song plays them, with the tempo.