Odin 2

Odin 2 is a 12-voice polyphonic hybrid synthesizer with one of the most versatile synthesis engines in the freeware world. Three oscillator modules each offer eleven different oscillator types, including wavetable, FM, vector, chiptune, and custom waveform shapes. You can draw your own waveforms with the Wavdraw, Chipdraw, and Specdraw engines. The filter section is just as deep, with three modules and thirteen filter types.

Modern and vintage emulations are both covered (the Moog Ladder and Korg 35 filters are particularly good). 0 brought a major UI overhaul. The GUI is now resizable from 100% to 200%, everything looks sharper and clearer, and I found the plugin much easier to navigate than in earlier versions. The workflow is unchanged, so existing users will feel right at home. Add the four ADSR envelopes, four LFOs, mod matrix, arpeggiator, and FX section (phaser, chorus, flanger, delay, reverb), and this is a synth you could get lost in for hours.

I’d put it right alongside Surge XT and Vital as one of the most capable free synths available. Odin 2 is available in AU, VST3, LV2, and CLAP formats for macOS, Windows, and Linux. There is no VST2 version due to Steinberg licensing.