whannel's Stars
surge-synthesizer/surge
Synthesizer plug-in (previously released as Vember Audio Surge)
mtytel/helm
Helm - a free polyphonic synth with lots of modulation
steinbergmedia/vstgui
A user interface toolkit mainly for audio plug-ins
VCVRack/Rack
The virtual Eurorack studio
VCVRack/AudibleInstruments
VCV Rack plugin based on Mutable Instruments Eurorack modules
audacity/audacity
Audio Editor
ValdemarOrn/CloudSeed
Algorithmic Reverb VST Plugin