VCV Rack - A cross-platform modular synthesizer.
HISE - Open source framework and tool set for building virtual instruments.
Pure Data - Pd (aka Pure Data) is a real-time graphical programming environment for audio, video, and graphical...
FlowCode - Flowcode is a graphical programming language and IDE for devices such as Arduino or PIC microcontrollers as well as Raspberry Pi.
miRack - Eurorack-style modular synthesizer for iOS.
FlowStone - FlowStone - the new graphical computer programming tool that allows you to create your own standalone programs quicker and more easily than ever before, download for FREE!