Browse free open source MIDI software and projects for Windows below. Use the toggles on the left to filter open source MIDI software by OS, license, language, programming language, and project status.
Boost your Piano playing skills
An advanced drum machine with pattern-based programming
Play MIDI like a human in ROBLOX with automatic sustain pedals.
Graphical editor software for many Boss and Roland effect & synth unit
Virtual MIDI controller for Linux, Windows and OSX
Free music notation & composition software
Virtual Pipe Organ Software
Play and record piano with a keyboard, mouse, or MIDI controller.
Leadsheet notation with auto-generated playback, improvisation advice
My SoundFonts
Multiplatform MIDI File Player for Linux, Windows, and macOS
A real-time SoundFont software synthesizer
DX7 FM multi plaform/multi format plugin
A Web Audio framework for making interactive music in the browser