Open Source Audio Plugins

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

100% Open Source Windows VST3 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.

Windows Focused

Deliberately targeting the Windows ecosystem where most bedroom producers work with DAWs like Reaper and FL Studio.

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