A list of open source VST (and other format) plugin/app projects. The intention of this list is to catalog open source plugins or apps which are fully featured or are useful examples which have non-trivial features.

  • Download Oscilloscope VST and Spectrum Analyzer VST Plug-Ins. Also available as Audio Unit and Pro Tools Plugins.
  • CamelCrusher by Camel Audio is an easy to use VST Plugin described as “free ‘colouring’ multi-effect plugin”. Even though Camel Audio was bought by Apple in the year 2015, which led to them releasing a.

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Vst plugins autotune free

Bongo drum vst plugin. The main benefit of having Open Source plugins/apps is that the code itself is preserved for the future, so when the author(s) stop updating it the community can continue using and developing the software. Open Source projects are also a great way to learn how different audio FX/instruments are created.

https://openaudio.webprofusion.com

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Audio Plugins

PluginDescriptionTypeFramework
ADLplugFM Chip Synthesizer — OPL & OPNInstrumentJUCE
andesSound synthesiser plugin based on Perlin noiseInstrumentJUCE
AirwindowsVarious small and experimental effect pluginsEffect
amsynthAnalog-modelling (virtual analog) synthesizerInstrumentGTK
ArgotlunarReal-time delay-line granulatorEffectJUCE
Audio EffectsPlugins implemented from the explanations in the book “Audio Effects: Theory, Implementation and Application”EffectJUCE
BinAural VSTMono-to-stereo plugin that positions sound in a 3D space using Head-Related Transfer FunctionsEffectJUCE
BlackBirdAnalog-inspired software synth with its own voiceInstrumentJUCE
Calf Studio GearMany LV2 and Jack audio plug-insEffectsGTK
CHOWA maximally truculent distortion effectEffectJUCE
Cloud SeedAlgorithmic reverb for emulating huge, endless spaces and modulated echoesEffect
Cocoa DelayWarm and lively delayEffectWDL-OL
ConvolverImpulse-response reverbEffectVSTGUI, JUCE
DexedDX7 FM plugin synthInstrumentJUCE
DigitsPhase-distortion synth inspired by Casio CZ seriesInstrumentVSTGUI
Distrho glBarsOpenGL bars visualization plugin (as seen in XMMS and XBMC/Kodi) adapted from jack_glbarsEffectDPF
Distrho Juice PluginsMiscDPF
Distrho KarsSimple karplus-strong plucked string synth based on the karplong DSSI example synthInstrumentDPF
Distrho Mini-SeriesCollection of small plugins based on LOSER-Dev PluginsEffectDPF
Distrho MVerbDPF-based version of MVerbEffectDPF
Distrho ndc PlugsDPF-based versions of some of ndc PlugsEffectDPF
Distrho NekobiSimple single-oscillator synth based on Roland TB-303InstrumentDPF
Distrho ProMMusic-visualizer plugin based on projectMEffectDPF
Dragonfly ReverbHall-style reverb based on Freeverb3 algorithmsEffectDPF
ElementAdvanced Audio Plugin HostMiscJUCE
EurorackDiverse set of physical modeling sources, organic processors, wavetable oscillators, waveshapers, granular synths, and utility modulesMisc
FlutterbirdSimple pitch fluctuationEffectiPlug 2
Gverb/GigaverbReverbEffectVSTGUI
HelmPolyphonic synth with lots of modulationInstrumentJUCE
hexterYamaha DX7 modeling FM synth for DSSIInstrumentDPF
HiLoFilterSimple hipass/lopass filter controlled with a single knobEffectJUCE
JuceOPLVSTiFM synth based on Yamaha OPL2/3 emulation from DOSBoxInstrumentJUCE
Juno 6Roland Juno 6/60 SynthesizerInstrument
keithhearne/VSTPluginsA collection of VST pluginsEffectJUCE
K-MeterImplementation of a K-System meter according to Bob Katz’ specificationsEffectJUCE
KickMakerSynth specifically to create kick-drum soundsInstrumentVSTGUI
LameVSTLameMP3 as an effectEffect
Magical8bitPlug 2Old 8bit game console style synthInstrumentJUCE
mdaFX and virtual instruments for PC and MacMisc(no GUI)
Mika MicroSimple subtractive synthInstrumentWDL-OL
MVerbStudio-quality reverb using the Dattorro’s figure-of-eight reverb structureEffectVSTGUI
NotNotchFilterPerformance-oriented filter designed to replace the mid-EQ found in a standard 3-band DJ mixerEffectJUCE
ndc PlugsVST plugins for Windows and OSXMisc
Odin2Polyphonic SynthInstrumentJUCE
OwlBassAdditive bass synthInstrumentJUCE
OB-XdBased on the Oberheim OB-XInstrumentJUCE
Oxe FM SynthMultitimbral 8-operator FM synth (VST 2.4; Windows, Linux, macOS)InstrumentVSTGUI
PulseDelayTimed delay effectEffect(no GUI)
QtVSTVST plugins with a Qt interfaceEffectQt
RegraderDegenerative delayEffectVSTGUI
Roth-AIRMixing tool for easily adding airy, crispy presence to audioEffectJUCE
ScorchCrafter Guitar FXAudio DSP FX and plugins, mostly for guitar (amp sim) and other FXEffectVSTGUI
sfizzSFZ parser library and instrument pluginsInstrumentVSTGUI
ShoutVSTVST for streaming sound into Icecast/Shoutcast directly from VST hostsEffectVSTGUI, FLUID
Sound AnalyserReal-time audio analysis to allow anyone to quickly set up and experiment with different algorithmsEffectJUCE
SurgeSubtractive wavetable synthInstrumentVSTGUI
SynisterSubtractive synthInstrumentJUCE
SyntageVST 2.4 .Net Study SynthInstrument
TemperDigital distortion targeting VST, VST3, and AU for OS X and WindowsEffectFaust, JUCE
TunefishVST virtual analog synthesizerInstrumentJUCE
traKmeterLoudness meter for correctly setting up tracking and mixing levelsEffectJUCE
VCV RackVirtual modular synthMiscRtAudio
VSTSIDSID synthesizer instrumentInstrument
VST2413FM synth based on emulator of YM2413 (OPLL) chip used in Sega Master System and FM-PAC MSX expansionInstrument(no GUI)
Wolf ShaperWaveshaper plugin with spline-based graph editorEffectDPF
YK ChorusChorus audio effect plugin based on DSP code by TALEffectDPF
zam-pluginsLADSPA/LV2/VST/JACK audio plugins for high-quality processingEffectDPF

Collections

  • Linux Synths - a list of linux based synths, some of which are open source
  • SFZ Instruments - a list of SFZ instruments, most of which are free
  • VCV library — a library of plugins compatible with VCV Plugin Manager

Open Source Audio Apps

SoftwareSourceDescription
ArdourArdour/ardourDAW
ASIO2WASAPIlevmin/ASIO2WASAPIUniversal ASIO driver for Windows
Audacityaudacity/audacityAudio editor
CarlafalkTX/CarlaGNU/Linux Plugin Host
ElementKushview/ElementAdvanced Audio Plugin Host
FlexASIOdechamps/FlexASIOUniversal ASIO driver for Windows
Giadamonocasual/giadaLoop machine
GuitarixSourceForge → guitarixGNU/Linux Virtual Amplifier
Helio Workstationhelio-fm/helio-workstationSequencer
HISEchristophhart/HISECross-platform framework/application for building sample-based virtual instruments (VST, AU, AAX)
Hydrogenhydrogen-music/hydrogenDrum machine
NewMixerjatinchowdhury18/NewMixerMixing Software
LMMSLMMS/lmmsDAW
OpenMPTOpenMPT/openmptPopular tracker (formerly ModPlug Tracker) for Windows with support for IT, XM, S3M, MOD modules, VST plugins and ASIO
OwlPlugDropSnorz/OwlPlugAudio plugin manager
orDrumboxSourceForge → ordrumboxDrum machine
PsycleSourceForge → psycleModular music tracker
StudioRackgithub.com/studiorackAudio plugin manager
VCV RackVCVRack/RackModular synth
Zrythmzrythm/zrythmDAW

Open Source Software Development Libraries

Vst Plugins Audio
LibrarySourceDescription
Cabbagerorywalsh/cabbageFramework for developing audio plugins and standalone instruments with Csound
Csoundcsound/csoundProgramming language for sound and music synthesis
DPFDISTRHO/DPFC++ framework for creating cross-platform audio plugins
Faustgrame-cncm/faustFunctional programming language for real-time signal processing
FluidSynthFluidSynth/fluidsynthReal-time synth based on the SoundFont 2 specifications
iPlug 2iPlug2/iPlug2Simple-to-use C++ framework for developing cross-platform audio plugins/apps
JUCEWeAreROLI/JUCECross-platform C++ framework for developing desktop and mobile apps and audio plugins
jVSTwRapperSourceForge → jvstwrapperWrapper to write audio plugins in Java (VST 2.4, AU, LADSPA; Windows, Linux, macOS)
libopenmptOpenMPT/openmptCross-platform C/C++ module-playback library based on OpenMPT
PortAudioAssembla → portaudioCross-platform audio I/O library
RtAudiothestk/rtaudioC++ classes for cross-platform real-time audio I/O
rust-vstrust-dsp/rust-vstVST 2.4 API implementation in the Rust language
SoundpipePaulBatchelor/SoundpipeLightweight music DSP library written in C; over 100 modules, many ported from Csound
VSTGUIsteinbergmedia/vstguiUser-interface toolkit mainly for audio plugins
WDL-OLolilarkin/wdl-olSimple-to-use C++ framework for developing cross-platform audio plugins (superseded by iPlug 2)

Code Samples

  • KlangFalter — a convolution audio plugin (e.g. for usage as convolution reverb)
  • FFTConvolver — an audio convolution algorithm in C++ for real-time audio processing

Open Data Resources

  • OpenAIR — the Open Acoustic Impulse Response Library (Convolution Reverb Impulse Responses to recreate reverb character of space and equipment/recordings)

Our freebies are fully functional, high quality, audio plugins based on our premium products. They are 100% free; all we ask for is your email address so we can keep you in the loop. You can unsubscribe to our newsletter anytime.


Baby Comeback is a free delay plugin developed in collaboration between BABY Audio and Computer Music Magazine. /free-glock-vst.html. It offers a stripped-down version of our award-winning Comeback Kid delay/echo plugin.

The plugin includes an on-board ducker as well as four wet signal flavors: Wide, Analog, Saucey and Cheap.


Magic Switch is a lush one-button chorus effect based on the “Magic” feature in our Super VHS plugin.

It is loosely inspired by the Juno-60 analog chorus effect*, but offers its own dark and detuned character.

Best Free Audio Plugins

Vst Plugins M-audio

*Learn about our approach to analog modeling here.