Top 14 midi-device open source projects

Web Audio DAW. Use the Web Audio API for dynamic sound synthesis. It's like jQuery for your ears.

Program for mapping midi signals to shell commands

Sits between your midi controller and your DAW to make your controller smarter

BMC the Badass MIDI Controller, all-in-one Scalable MIDI Controller library with a companion Desktop/Browser Editor App for Teensy LC, 3.2, 3.5, 3.6, 4.0, 4.1

An open-source MIDI-to-CV Eurorack module that runs CircuitPython

Ableton MIDI Sculptor: Tools for MIDI editing in Ableton Live

Novation Bass Station II Web interface

Wavetable Synth Running on an STM32F 32-bit ARM Cortex M3 microprocessor

A Swift macOS application which turns your keystrokes into music

Open source Arduino MIDI controller.

Ruby MIDI input event listener

Allows a microcontroller, with native USB capabilities, to appear as a MIDI device over USB to a connected computer

ESP32S2 native USB library. Implemented few common classes, like MIDI, CDC, HID or DFU (update).

osmid is a tool to bridge MIDI and OSC. It is currently in use in Sonic Pi