Harmonic Saturator

A free saturation plugin — soft clipping with a gain-compensated output stage, from low-end mass to upper-harmonic edge.

Free Saturation
VST3 AU macOS Windows 100% Free

Harmonic Saturator is a completely free saturation plugin built on soft clipping with a gain-compensated output stage — push it as hard as you like and the perceived level stays honest, so you're hearing the tone change, not just "louder."

Windows and macOS-compatible (VST3 and AU)

What It Does

  • Soft-clipping saturation: Rounds off peaks smoothly instead of shearing them, adding warm harmonic content without harsh digital artifacts.
  • Gain-compensated output: The output stage automatically offsets the level increase from driving the input, so A/B comparisons are fair and gain staging stays intact.
  • Tone shaping: Shape the character from thick low-end mass to bright upper-harmonic edge, depending on how you drive it.

It's the same saturation engine that lives inside the Saturate knob of Vibrancy — here as a simple, dedicated plugin you can drop on drums, bass, vocals, synths, or a full bus.

FAQ

Is it actually free?

Yes — completely free, delivered instantly through Gumroad. No feature locks, no trial timer.

What would I use a saturator for?

Saturation adds harmonics that make digital tracks feel warmer and more present — glue on a drum bus, weight on a bass, presence on a vocal, or gentle edge on a full mix. Because Harmonic Saturator is gain-compensated, it's easy to hear exactly what it's contributing.

Will it work in my DAW?

It ships as VST3 and AU for macOS and Windows — Ableton Live, FL Studio, Logic Pro (AU), Reaper, Cubase, Studio One, Bitwig, and most other modern DAWs are covered.