Open Source Audio Plugins

Free VST3 plugins for Windows, Linux & macOS. Built with pure Steinberg SDK. No frameworks, no bloat, no secrets.

100% Open Source Windows, Linux, macOS Pure VST3 SDK

Plugins

Professional quality, completely free, fully open source

WetDelay

Available

Authentic 80s rack-style digital delay. 100% wet output with vintage 12-bit character and gritty warmth.

  • 6 delay times (20ms to 400ms)
  • 24kHz internal rate, 12-bit quantization
  • Stereo with 1% channel crosstalk
  • Real-time input/output metering
Download Source

WetChorus

Coming Soon

Lush stereo chorus inspired by classic hardware units. From subtle shimmer to full ensemble.

  • Multiple chorus voices
  • Variable modulation depth
  • Stereo width control
  • Vintage and modern modes

WetEQ

Coming Soon

Musical parametric equalizer with smooth, analog-style curves and intuitive controls.

  • 4-band parametric EQ
  • High and low shelf filters
  • Real-time spectrum analyzer
  • Precise frequency control

WetPreamp

Coming Soon

Warm tube-style preamp with harmonic saturation. Add body and presence to any source.

  • Tube saturation modeling
  • Input and output gain
  • Tone shaping controls
  • Clean to driven range

WetReverb

Coming Soon

Algorithmic reverb with multiple room types. From tight ambience to vast halls.

  • Multiple room algorithms
  • Pre-delay and decay control
  • Damping and diffusion
  • Stereo width adjustment

WetCompressor

Coming Soon

Versatile dynamics processor with VCA and optical modes. Transparent control or musical pumping.

  • VCA and optical modes
  • Variable knee control
  • Sidechain filtering
  • Auto makeup gain

Why WET VST?

A different approach to plugin development

Fully Open Source

Most free plugins are closed-source binaries. WET plugins give you the complete source code under a permissive license. Learn, modify, contribute.

Pure VST3 SDK

Built directly on the official Steinberg VST3 SDK. No JUCE, no third-party frameworks. Clean, minimal, and easy to understand.

Complete Documentation

Every plugin includes full build instructions using only free tools: Visual Studio Build Tools, CMake, and Git. No paid licenses needed.

Cross-Platform

One binary for all platforms. Windows, Linux, and macOS (Intel & Apple Silicon) supported from day one. Universal VST3 from a single build.

Support Development

WET plugins are free forever. If they help your music, consider buying me a coffee to support continued development.

Buy Me a Coffee