A list of open source VST/audio plugin projects. Please contribute more links or open source your own plugins.

A flexible universal ASIO driver that uses the PortAudio sound I/O library. Supports WASAPI (shared and exclusive), KS, DirectSound and MME.

VST 2.4 API implementation in rust. Create plugins or hosts. Previously rust-vst on the RustDSP group.

Physical modelling signal processing for analog tape recording

Element Audio Plugin Host

media(audio/image/qrcode/markdown/html/svg/png) support (多媒体编辑服务, 酷炫二维码, 音频, 图片, svg, markdown, html渲染服务支持)

An audio plugin with Pure Data embedded that allows to load and to control patches

Digital Audio Workstation with Python; VST instruments/effects, parameter automation, FAUST, JAX, Warp Markers, and JUCE processors

Audio Plugin for Audio to MIDI transcription using deep learning.

Innovation-first digital audio workstation (DAW), instrument and effect plugins, wave editor

Audio plugin framework. VST2/VST3/AU/AAX/LV2 for Linux/macOS/Windows.

FM Chip Synthesizer — OPL & OPN — VST/LV2/Standalone

Flute Music Player - First Open Source Flutter based material design music player with audio plugin to play local music files.

Digital emulation of the Klon Centaur guitar pedal using RNNs, Wave Digital Filters, and more

Matrix delay effect

Collection of LADSPA/LV2/VST/JACK audio plugins for high-quality processing

Audio plugin manager. Small tool to manage VST / AU / LV2 plugins on Windows, MacOS and Linux.

Waveshaper plugin with a spline-based graph editor (LV2, VST, and CLAP)

Complex Nonlinearities for Audio Signal Processing

A safe, fast, and modular framework to create LV2 plugins, written in Rust