Pure Data - Pd (aka Pure Data) is a real-time graphical programming environment for audio, video, and graphical...
VCV Rack - A cross-platform modular synthesizer.
SuperCollider - A real time audio synthesis engine, and an object-oriented programming language specialised for...
miRack - Eurorack-style modular synthesizer for iOS.
Orca - Orca.exe is a database table editor for creating and editing Windows Installer packages and merge...
SynthEdit - Visual programming software to build your own synthesizer.