JUCE is an open-source cross-platform C++ application framework for desktop and mobile applications, including VST, VST3, AU, AUv3, LV2 and AAX audio plug-ins.

🎛 🔊 A Python library for audio.

Synthesizer plug-in (previously released as Vember Audio Surge)

A curated list of my favourite music DSP and audio programming resources

A modern and transparent way to use Windows VST2, VST3 and CLAP plugins on Linux

C++ Audio Plug-in Framework for desktop, mobile and web

Rust VST3 and CLAP plugin framework and plugins - because everything is better when you do it yourself

Your Hardcore Loop Machine.

VST 3 Plug-In SDK

Physical modelling signal processing for analog tape recording

Enhanced version of Cockos' iPlug - A simple-to-use C++ framework for developing cross platform audio plugins and targeting multiple plugin APIs with the same code. VST / VST3 / Audiounit / RTAS / AAX (Native) formats supported. NOTE: THIS IS OBSOLETE, PLEASE SEE IPLUG2:

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

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

My curated list of audio DSP and plugin development resources

A user interface toolkit mainly for audio plug-ins

DSP servers using general purpose computers and networks

Various resources related to developing plugins for audio production.

automatic mastering plugin for live streaming, podcasts and internet radio.

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

Vaporizer2 hybrid wavetable additive / subtractive VST / AU / AAX synthesizer / sampler workstation plugin