opensourcevst.com

Open-source effects

13 projects, each with its formats, systems and licence

Open-source effects range from single-purpose reverbs to collections of hundreds of small processors. Check the formats carefully: some collections are LV2 for Linux only, others ship VST3 and AU builds for every system.

Format

Works on

Activity

A real-time voice noise suppressor based on a small neural network, for cleaning up microphone input in calls, streams and recordings.

  • VST3
  • AU
  • LV2
  • VST2
  • Windows
  • macOS
  • Linux
ChowTapeModel logo

ChowTapeModel

GPL-3.0Dormant

A physical model of a reel-to-reel tape machine with wow, flutter, hysteresis and degradation, for adding believable tape warmth.

  • VST3
  • CLAP
  • AU
  • LV2
  • Standalone
  • Windows
  • macOS
  • Linux
Airwindows logo

Airwindows

MITActive

Hundreds of small, character-rich effects from compressors and saturators to tape and console emulations, each with just a few controls.

  • AU
  • VST2
  • Windows
  • macOS
  • Linux

Dragonfly Reverb

GPL-3.0Active

A set of four reverbs (room, hall, plate and early reflections) that sound smooth and are easy to dial in.

  • VST3
  • LV2
  • Windows
  • macOS
  • Linux

Instead of ValhallaRoom logoValhallaRoom

LSP Plugins logo

LSP Plugins

LGPL-3.0Active

A large collection of mixing and mastering tools: equalizers, compressors, limiters, gates, analyzers and many more, with a consistent interface.

  • VST3
  • CLAP
  • LV2
  • VST2
  • Standalone
  • Windows
  • macOS
  • Linux
Calf Studio Gear logo

Calf Studio Gear

LGPL-2.1Active

A suite of LV2 effects for Linux: compressors, equalizers, reverbs, delays, a vocoder and more.

  • LV2
  • Linux

Fire

AGPL-3.0Active

A multiband distortion plugin with several distortion types per band and a live waveform display.

  • VST3
  • CLAP
  • AU
  • Windows
  • macOS
  • Linux

JS Inflator

GPL-3.0Quiet

A free loudness enhancer modelled on a well-known commercial effect, adding density and perceived level without hard clipping.

  • VST3
  • Windows
  • macOS

Instead of Oxford Inflator

ZAM Plugins

GPL-2.0Active

A collection of compressors, equalizers, delays and other mixing processors for high-quality audio.

  • LV2
  • Windows
  • macOS
  • Linux

GATE-12

GPL-3.0Active

An envelope you draw to shape the volume of a track, for gating, pumping and rhythmic effects.

  • VST3
  • CLAP
  • AU
  • LV2
  • Windows
  • macOS
  • Linux

TIME-12

GPL-3.0Active

A delay modulator where you draw how the delay time moves, for tape-style wobble and timing effects.

  • VST3
  • CLAP
  • AU
  • LV2
  • Windows
  • macOS
  • Linux

REEV-R

GPL-3.0Active

A convolution reverb with modulation and pre- and post-processing, for realistic spaces and creative impulse responses.

  • VST3
  • CLAP
  • AU
  • LV2
  • Windows
  • macOS
  • Linux
Plasma logo

Plasma

AGPL-3.0Active

A distortion plugin with several modes and per-stage controls for heavy saturation.

  • VST3
  • AU
  • LV2
  • Windows
  • macOS
  • Linux

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