Primer: Free Synthesizer VST

Primer Free Synth VST Screenshot

Primer is a synth built for learning. Designed for Syntorial (the award-winning synthesizer training app), it contains the most common controls found on most subtractive/analogue synths, allowing for a wide variety of patches and sounds, while presenting a simple and easy-to-understand interface and layout.

Primer is free and available for:

  • Mac: VST and AU Plugin
  • Windows: VST Plugin
  • iPad: Standalone app and Audio Unit Extension

It’s also integrated directly into Syntorial allowing you to learn by doing, and take what you learn and easily transfer it to your DAW of choice.

Synth features:

  • Subtractive synthesis
  • Three Oscillators (Two with Waveform, Pitch, Pulse Width, and Mix controls, and a Sub oscillator with Waveform and Volume controls)
  • Saw, Pulse, Triangle and Sine waveforms
  • FM knob
  • Noise Oscillator
  • Oscillator Sync
  • Filter (Low, Band and High Pass) with Resonance and Key Tracking
  • ADSR Filter Envelope
  • ADSR Amp Envelope
  • AD Modulation Envelope
  • LFO with four waveforms, seven destinations, rate, amount, trigger, and mono/poly modes
  • Mono, Legato and Poly Voice Modes
  • Portamento
  • Unison with Voice, Detune and Spread controls
  • Ring Modulation
  • Distortion, Chorus, Phaser, Delay, and Reverb effects
  • Mod Wheel, Pitch Wheel and Velocity controls
  • Visualizer: Watch the Envelope, Filter and LFOs operate in real time
  • Randomizer: Choose from two different random patch generators for an endless supply of patches