Free & Open-Source Spectrasonics Omnisphere Alternatives

Hybrid synthesizer with huge sound library.

1. Surge XT ↗ FOSSPRIVATE
   Open-source hybrid synthesizer with massive feature set.
   ●●○Medium · MIDI + VST/AU plugin compatible
2. Vital ↗ FOSSPRIVATE
   Free spectral wavetable synth — Massive-class quality.
   ●●○Medium · MIDI + VST/AU plugin compatible
3. VCV Rack 2 ↗ FOSSPRIVATE
   Free virtual modular synthesizer rack.
   ●●○Medium · MIDI + VST/AU plugin compatible