VST Plugins
Cross-platform audio processing plugins
The VST plugins listed on this site's audio plugins page are all open source software.
The plugins are either built on top of Steinbergs VST SDK or the JUCE framework and can be built for Windows, MacOS and Linux platforms.
The plugins run in any VST3 compliant host/DAW with the macOS versions also offering support for the Audio Unit format. The plugins built using Steinberg VST SDK can also be built in the legacy VST (2.4) format if you have the appropriate license.
Both instruments and sound processors are available, where all plugins separate their model state management, UI controls and audio processing logic into separate classes.
Each repository contains shell/batch scripts to setup dependencies and generate the plugins for the appropriate platform, with options to compile for both Intel and ARM architectures on macOS or even support legacy 32-bit architectures for musicians who maintain legacy systems.