Primer is a free subtractive synthesizer designed not only for music creation but also as a powerful learning tool, especially when paired with the acclaimed Syntorial synth training platform. Whether you’re a beginner just learning synthesis or an experienced producer looking for a lightweight, versatile instrument, Primer brings professional-grade features in a free, intuitive package.
Key Features
400 Factory Presets
From classic analog textures to modern EDM-ready patches.
Flexible Oscillator Section
3 Oscillators:
Two with waveform, pitch, pulse width, and mix controls
One Sub Oscillator with waveform and volume
Waveforms: Saw, Pulse, Triangle, Sine
Oscillator Sync and FM Control
Noise Oscillator for added grit
Modulation & Envelopes
Filter Section: LP, BP, HP with Resonance & Key Tracking
Filter & Amp Envelopes (ADSR)
Additional AD Mod Envelope
LFO: Four waveforms, seven destinations, flexible triggering, mono/poly modes
️Performance & Expression
Voice Modes: Mono, Legato, Poly
Portamento, Unison, Detune, and Spread
Ring Modulation
Built-in FX
Distortion, Chorus, Phaser, Delay, Reverb
️ Realtime Visual Feedback
Envelope, LFO, and Filter visualizations for better understanding of sound shaping.
Patch Randomizer
Two creative randomization engines to inspire new sounds instantly.
️ Available Formats
macOS: VST & AU
Windows: VST
iPad: Standalone app & AUv3 Extension
Integrated directly into Syntorial, Primer is the perfect hands-on training synth—what you learn, you can use right away in your DAW.
https://www.syntorial.com/primer/
