Luster harmonic enhancer plugin interface
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Harmonic Enhancer · Free

Luster

A finishing enhancer with one knob. Behind it, Luster cleans boxiness and harshness, adds body, presence and air, warms with harmonic saturation and opens the stereo image - but you don't touch any of that. You just turn up the glow, and a pearl under a lamp shines brighter as you do.

Free
Installing on Windows? Read this first

Windows shows a blue "Windows protected your PC" screen for any app it hasn't seen before, including ours. It's safe - clear it in two clicks:

  1. Click More info on the blue screen.
  2. Click Run anyway, then follow the installer.

Full Windows setup guide, with screenshots →

  • FormatsVST3 · AU
  • PlatformsmacOS · Windows
  • TypeInsert effect
  • Best forVocals · mix bus · tonal polish
What it does

One knob.
A lot underneath.

Subtractive EQ removes what hurts, additive EQ restores body, presence and air, saturation adds harmonics, and the stereo stage widens while bass stays mono. All of it auto gain-matched - a real tonal improvement, not a loudness trick - on a mix bus, a master, or any track.

One gain-matched knob

Raise the amount and the whole chain scales together - subtract, add, saturate, widen - level-matched so your ears judge tone, not volume.

Four characters

Punchy for attack and impact, Warm for analog body, Subtle for gentle polish, Cool for airy modern clarity.

Finishing, anywhere

Made for the mix bus and master, happy on single tracks - presets from Modern Clarity and Mix Glue to Crystal Air and Full Luster.