Open-Source Audio Plugins & Apps

A list of open source audio software projects (Apps, Plugins, Libraries and other resouces). The intent of this list is to catalog open-source audio apps, plugins (VSTs etc) or other resources which are either fully featured or are useful examples which have non-trivial features.

https://openaudio.webprofusion.com

<details> <summary>Table of Contents</summary> <ul> <li><a href="#audio-plugins">Audio Plugins</a></li> <li><a href="#collections">Collections</a></li> <li><a href="#audio-apps">Audio Apps</a></li> <li><a href="#software-development-libraries">Software Development Libraries</a></li> <li><a href="#code-samples">Code Samples</a></li> <li><a href="#open-data-resources">Open Data Resources</a></li> </ul> </details> <details> <summary>Contributing links</summary>

To contribute new links, fill out our issue template and the change will be prepare automatically and reviewed by an editor: https://github.com/webprofusion/OpenAudio/issues

</details>

Audio Plugins

| Plugin | Description | Type | Framework | | --- | --- | --- | --- | | 3HSPlug | GM/GS Compatible Multi-timbal 8-operator FM/PCM Syntheizer, uses 3HS88PWN4 (Fantasy sound chip) to make sound. | Instrument | JUCE | | 8ridgelite | 8 string guitar virtual instrument | Instrument | JUCE | | ADLplug | FM Chip Synthesizer — OPL & OPN | Instrument | JUCE | | Airwindows | Various small and experimental effect plugins | Effect | N/A | | ampli-Fe | Cross-platform VST2 plugin written in Rust | Effect | Rust VST | | amsynth | Analog-modelling (virtual analog) synthesizer | Instrument | GTK | | andes | Sound synthesiser plugin based on Perlin noise | Instrument | JUCE | | Argotlunar | Real-time delay-line granulator | Effect | JUCE | | Audible Planets | An expressive, quasi-Ptolemaic semi-modular synthesizer | Instrument | JUCE | | Audio Effects | Plugins implemented from the explanations in the book “Audio Effects: Theory, Implementation and Application” | Effect | JUCE | | Bespoke | Node-based modular synth with live coding | Instrument | JUCE | | BinAural VST | Mono-to-stereo plugin that positions sound in a 3D space using Head-Related Transfer Functions | Effect | JUCE | | BlackBird | Analog-inspired software synth with its own voice | Instrument | JUCE | | blocks | Polyphonic modular synth | Instrument | JUCE | | BORIS Granular Station | A live-input granular plugin | Effect | JUCE | | Breathalyzer | Breathalyzer is a VST3 instrument that turns MIDI notes into playable breath-and-voice gestures. It is not a sample player and not a speech synthesizer. The design goal is a compact expressive instrument whose mouth color, noise, growl, and vowel motion can all be performed from a small control surface. | Instrument | VSTGUI | | C1Bitcrusher | Experimental and accurate bit reduction | Effect | N/A | | Calf Studio Gear | Many LV2 and Jack audio plug-ins | Effect | GTK | | Cardinal | Virtual modular synthesizer plugin | Instrument | DPF | | Chorus Ex Machina | Physically modelled chorus synthesizer | Instrument | NIH-Plug | | CHOW | Maximally truculent distortion effect | Effect | JUCE | | Cloud Seed | Algorithmic reverb for emulating huge, endless spaces and modulated echoes | Effect | N/A | | Cocoa Delay | Warm and lively delay | Effect | WDL-OL | | Convolver | Impulse-response reverb | Effect | JUCE, VSTGUI | | cStop | Tape stop | Effect | JUCE | | Dexed | DX7 FM plugin synth | Instrument | JUCE | | Digits | Phase-distortion synth inspired by Casio CZ series | Instrument | VSTGUI | | Distrho glBars | OpenGL bars visualization plugin (as seen in XMMS and XBMC/Kodi) adapted from jack_glbars | Effect | DPF | | Distrho Juice Plugins | | Misc | DPF | | Distrho Kars | Simple karplus-strong plucked string synth based on the karplong DSSI example synth | Instrument | DPF | | Distrho Mini-Series | Collection of small plugins based on LOSER-Dev Plugins | Effect | DPF | | Distrho MVerb | DPF-based version of MVerb | Effect | DPF | | Distrho ndc Plugs | DPF-based versions of some of ndc Plugs | Effect | DPF | | Distrho Nekobi | Simple single-oscillator synth based on Roland TB-303 | Instrument | DPF | | Distrho ProM | Music-visualizer plugin based on projectM | Effect | DPF | | Dragonfly Reverb | Hall-style reverb based on Freeverb3 algorithms | Effect | DPF | | Drops | Single file audio player | Instrument | DPF | | Element | Advanced Audio Plugin Host | Misc | JUCE | | Eurorack | Diverse set of physical modeling sources, organic processors, wavetable oscillators, waveshapers, granular synths, and utility modules | Misc | N/A | | Flutterbird | Simple pitch fluctuation | Effect | iPlug2 | | FreeEQ8 | FreeEQ8 is a professional-grade, free and open-source 8-band parametric EQ plugin for macOS, Linux, and Windows. | Effect | JUCE | | GainPlugin | (Experimental) VST/AU audio plugin example based on JUCE with React-JUCE for UI. | Misc | JUCE, React-JUCE | | Gverb/Gigaverb | Reverb | Effect | VSTGUI | | Helm | Polyphonic synth with lots of modulation | Instrument | JUCE | | hexter | Yamaha DX7 modeling FM synth for DSSI | Instrument | DPF | | HiLoFilter | Simple hipass/lopass filter controlled with a single knob | Effect | JUCE | | Hue | Mixes various noise types into the audio signal | Effect | Rust VST | | jc303 | A Free Roland TB-303 Plugin for Windows, MacOS and Linux: VST2, VST3, LV2 and AU. A JUCE port of Open303 engine | Instrument | JUCE | | JuceOPLVSTi | FM synth based on Yamaha OPL2/3 emulation from DOSBox | Instrument | JUCE | | Juno 6 | Roland Juno 6/60 Synthesizer | Instrument | N/A | | K-Meter | Implementation of a K-System meter according to Bob Katz’ specifications | Effect | JUCE | | keithhearne/VSTPlugins | Collection of VST plugins | Effect | JUCE | | Key Repeat | Beat repeat sampler | Instrument | JUCE | | KickMaker | Synth specifically to create kick-drum sounds | Instrument | VSTGUI | | LameVST | LameMP3 as an effect | Effect | N/A | | Magical8bitPlug 2 | Old 8bit game console style synth | Instrument | JUCE | | mda | FX and virtual instruments for PC and Mac | Misc | N/A | | mda-plugins-juce | JUCE implementations of the classic MDA audio plug-ins | Misc | JUCE | | MidiChords | Detect chord names from a MIDI track and display them in a scrolling window during track playback | Misc | JUCE | | Mika Micro | Simple subtractive synth | Instrument | WDL-OL | | modEQ | EQ with modulation (VST3, AU) | Effect | JUCE | | MultiMeter | A comprehensive set of AU/VST audio analysis tools (level meters, histograms, spectrogram analyzer, goniometer, correlation meter) | Effect | JUCE | | MVerb | Studio-quality reverb using the Dattorro’s figure-of-eight reverb structure | Effect | VSTGUI | | ndc Plugs | VST plugins for Windows and OSX | Misc | VSTGUI | | Neural Amp Modeler LV2 | Neural amplifier modeler, LV2 version of Steven Atkinson's NAM plugin | Effect | N/A | | Ninjas 2 | Sample slicer, rewrite of Ninjas | Instrument | DPF | | NotNotchFilter | Performance-oriented filter designed to replace the mid-EQ found in a standard 3-band DJ mixer | E