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instrument

Generates audio, usually in response to notes. The complement of an effect.

Also called sound generator sound source virtual instrument vsti

Includes bass drums generator organ piano sampler synth

Elsewhere lv2:InstrumentPlugin

249 plugins in this category. Also as Turtle.

8ridgelite

8ridgelite— James Stubbs

8 string guitar virtual instrument with one extra octave below for good measure!

free open source GPL-3.0 VST3 AudioUnit instrument guitar

Achord— Danny Ayers

Modern Stradella-style Launchpad chord controller with transport-aware trigger modes.

free open source MIT LV2 instrument

Actuate

Actuate— Ardura

A Subtractive and Additive Synthesizer, Sampler, and Granulizer built in Rust + Nih-Plug.

free open source GPL-3.0 VST3 CLAP instrument synth sampler

ADLplug— Jean Pierre Cimalando

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

open source BSL-1.0 LV2 instrument

ADLplug

ADLplug— Jean Pierre Cimalando

FM synthesizer based on OPL3 and OPN2 sound chip emulations. Synthesis of melodic and percussive instruments, support for dynamic parameterization and automation.

free open source BSL-1.0 VST3 LV2 AudioUnit Standalone VST2 instrument synth

ADSR

ADSR— Florian Mrugalla

A plugin that transforms MIDI input into an ADSR modulator audio output, usable as a modulation source for other plugins.

free open source GPL-3.0 VST3 effect midi instrument modulation generator

Aeolus

Aeolus— Archie3d

Pipe organ emulator using additive synthesis.

free open source GPL-3.0 VST3 LV2 AudioUnit CLAP Standalone VST2 instrument synth

amsynth— Nick Dowell

Simple software synthesizer for Linux

GPL LV2 instrument

amsynth

amsynth— Nick Dowell

Simple software synthesizer for Linux, macOS and Windows, inspired by classic analog hardware monosynths.

free open source GPL-2.0 AudioUnit VST2 instrument synth

Andes

Andes— Artem Popov

Andes is a software synthesiser plugin in early stages of development. The core of Andes is an original oscillator which uses a pseudo-3D version of Perlin noise to produce distinctively digital sound.

free open source GPL-3.0 VST2 instrument synth

ArpIso— Danny Ayers

free open source MIT LV2 instrument

Audible Planets

Audible Planets— Greg Recco

An expressive, quasi-Ptolemaic semi-modular synthesizer.

free open source GPL-3.0 VST3 LV2 AudioUnit instrument synth

AVL Drumkits

AVL Drumkits— Glen MacArthur

Black Pearl and Red Zepplin drumkits recorded with 5 velocity layers per kit piece.

free CC-BY-SA-4.0 instrument drums sampler

AVL Percussions

AVL Percussions— Glen MacArthur

11 percussions instruments (Cajon, Woodblock, Handclap, Fingersnap, Bongos, Maracas, Tambourine, Cowbell, Claves, Waterglass) recorded with 5 velocity layers per piece.

free CC-BY-SA-4.0 instrument drums sampler

ayumi-lv2— Atsushi Eno

ayumi AY-3-8910 and YM2149 emulator for LV2

MIT LV2 instrument

B-Step

B-Step— Surge Synthesizer Team

The MonoPlugs b-step sequencer

free open source GPL-3.0 VST3 AudioUnit CLAP midi instrument generator sequencer

B.Jumblr

B.Jumblr— sjaehn

A pattern-controlled audio stream / sample re-sequencer, re-ordering chopped-up slices of the input to build new rhythmic patterns.

free open source GPL-3.0 LV2 midi instrument sampler generator sequencer

B.Schaffl

B.Schaffl— sjaehn

A slider/shape-controlled MIDI velocity amplification and time-stretch plugin for producing swing/shuffle grooves and vitalizing sequenced MIDI instruments.

free open source GPL-3.0 LV2 midi instrument generator

B.Vibratr

B.Vibratr— sjaehn

Flavoured vibrato effect, played like an instrument, that modifies the sound of other instruments and samples

free open source GPL-3.0 LV2 effect instrument modulation

Banana Split

Banana Split— Jesús Valdez

An FM synthesizer with one oscillator (sine/saw/triangle/square), ADSR envelope, and built-in reverb, delay, chorus, and distortion effects.

free open source MIT VST3 AudioUnit instrument synth

Basic Harmonica

Basic Harmonica— michael02022

Basic harmonica.

free open source CC0-1.0 instrument sampler

Basilico— danja

Monophonic bass instrument with upright, electric, dub, acid, and industrial models. Voice block adds a sine harmonic at an integer multiple of the main pitch. Wobble Sub Mix modulates sub level via the LFO. Envelope Sub

free open source MIT VST3 bass instrument

BassLineMatrix

BassLineMatrix— OTODESK

Algorithmic MIDI sequencer and built-in synthesizer that generates genre-specific basslines and chord progressions across 23 electronic music styles

free open source AGPL-3.0 VST3 midi instrument synth sequencer

BassPreamp

BassPreamp— Guillermo Moñino Cánovas

Bass preamp plugin blending ideas from multiple bass preamp effects — noise gate, MarkBass-inspired character/VPF control, and tone shaping

free open source MIT VST3 AudioUnit effect bass instrument

BassSynth

BassSynth— OTODESK

Wavetable bass synthesizer with math-generated morphing tables, spectral morphing, and an auto-chord-learning impulse response engine

free open source AGPL-3.0 VST3 bass instrument synth

Bear Sax

Bear Sax— DSmolken

1926 Conn baritone saxophone including sustained notes and breath noise.

free open source CC0-1.0 instrument sampler

BeatCrafter

BeatCrafter— Innermost

Intelligent MIDI drum pattern generator VST3 designed for live performance with foot controllers. Generate authentic patterns across multiple styles with dynamic intensity control.

free open source MIT VST3 midi instrument drums generator

BeatMD

BeatMD— Paul Jones

A simple sampler plugin modelled on an old piece of analog gear, available as VST3, AU, and AAX.

free open source GPL-3.0 VST3 AudioUnit AAX instrument sampler

Beatrec

Beatrec— Thomas Brok

Open source rolling sampler (VST3/CLAP audio plug-in), built with Rust

free open source GPL-3.0 VST3 CLAP instrument sampler

BespokeSynth

BespokeSynth— BespokeSynth

A live-patchable, modular synth environment that can host VST/VST3/LV2 plugins internally, with sequencing, MIDI controller mapping, and Python scripting.

free open source GPL-3.0 Standalone midi instrument sequencer

Bifractalizer

Bifractalizer— Andrew Kotov

An audio plugin that fractalizes and defractalizes sound 😺

free open source MIT VST3 effect instrument synth granular

Billie Drum

Billie Drum— EwonRael

SFZ drum kit inspired by the sound of Michael Jackson's Thriller album, blending acoustic and digital drum samples at 44.1kHz

free open source CC0-1.0 instrument drums sampler

Black and Green Guitars

Black and Green Guitars— DSmolken

Black Hofner Club and Green Gretsch Anniversary electric guitars.

free open source CC0-1.0 instrument sampler guitar

BlackBird

BlackBird— Dmitry Khrykin

Analog-inspired software synth with its own voice, filters. modulation and envelope.

free open source GPL-3.0 VST3 AudioUnit instrument synth

Boom Baby

Boom Baby— AUDITIVE

3-channel kick enhancement and synthesis plugin for both audio-track processing and MIDI-triggered kick workflows

free open source GPL-3.0 VST3 AudioUnit instrument

Braids VST

Braids VST— masseyis

Polyphonic VST3/AU plugin porting Mutable Instruments Braids macro-oscillator

free open source MIT VST3 AudioUnit Standalone instrument synth

BSEQuencer

BSEQuencer— sjaehn

A multi-channel MIDI step sequencer with a variable-size pattern matrix (up to 32x16), per-pad randomization, musical scale/drumkit support, and a built-in scale/drumkit editor.

free open source GPL-3.0 LV2 midi instrument drums generator sequencer

Campione— danja

Multi-zone sampler with per-note MIDI mapping, pitch-shift gap fill, zero-crossing loop snap, and crossfade looping.

free open source MIT VST3 instrument

Canticle— danja

Twelve-voice keys, reed, pad, pluck, and glass instrument for melody, counterpoint, and chords.

free open source MIT VST3 instrument

Cardinal

Cardinal— DISTRHO

Virtual modular synthesizer plugin

free open source GPL-3.0 VST3 LV2 AudioUnit CLAP VST2 instrument

Chatterbox— Danny Ayers

free open source MIT LV2 instrument

Chipper

Chipper— Austin Naremore

A multi-chip retro synth VST3 emulating classic game and computer sound chips (NES, Game Boy, SID, YM2612, OPL, and more), with register-aware, emulator-backed chip behavior.

free open source AGPL-3.0 VST3 instrument synth

ChordMatrix

ChordMatrix— OTODESK

MIDI chord sequencer combining music theory with algorithmic assistance — lookahead voice leading, smooth fingering, and context-aware modulation suggestions

free open source AGPL-3.0 VST3 midi instrument

Chorus Ex Machina

Chorus Ex Machina— Peter Eastman

Physically modelled chorus synthesizer, able to sing realistically in a variety of languages.

free open source LGPL-2.1 VST3 AudioUnit CLAP instrument synth

ChowKick

ChowKick— Chowdhury DSP

Kick synthesizer based on old-school drum machine circuits

free open source BSD-3-Clause VST3 LV2 AudioUnit CLAP VST2 instrument synth

Continuous Risset Scales— James Morris

NJL plugins by Nick Lamb ported to the LV2 specification

GPL LV2 instrument

Convolution's Kick Synth

Convolution's Kick Synth— minburg

Versatile kick drum synthesizer plugin for crafting sounds from deep, clean 808s to aggressive, textured, distorted kicks for modern electronic music

free open source GPL-3.0 VST3 AudioUnit CLAP Standalone instrument

CRASSHHFY

CRASSHHFY— Cal Goheen

Neural drum sampler plugin that uses a diffusion network to generate drum samples, with priming ("Drumify"), inpainting ("Variation"), and a kick/snare/hihat classifier

free open source MIT VST3 AudioUnit instrument sampler

Crypt

Crypt— Vitling

A hyper-unison synthesiser for creating spacious, cold synth sounds, developed for the Bow Church project.

free open source GPL-3.0 VST3 AudioUnit instrument synth

Dexed

Dexed— Pascal Gauthier

Synthesizer closely modeled on the Yamaha DX7.

donationware open source GPL-3.0 VST3 AudioUnit CLAP Standalone instrument synth

DigiDrie

DigiDrie— Bart Brouns

A monophonic vector-synthesis synth with 4 phase-locked CZ-style oscillators, morphable macros arranged in a 3D cube, and per-parameter left-right stereo difference control.

free open source AGPL-3.0 VST3 LV2 AudioUnit CLAP VST2 instrument synth

dm-GrainDelay

dm-GrainDelay— Dave Mollen

A granular delay effect, written in Rust and compilable to LV2 or MOD Audio plugin formats.

free open source GPL-3.0 LV2 effect instrument synth delay granular

dm-TimeWarp

dm-TimeWarp— Dave Mollen

Granular delay, looper & sampler plugin with time stretch capabilities

free open source GPL-3.0 VST3 LV2 AudioUnit CLAP effect instrument synth delay granular

Double Bass

Double Bass— DSmolken

1958 Otto Rubner double bass played arco and pizzicato with additional miscellaneous noises.

free open source CC0-1.0 bass instrument sampler

Drawwave Vocoder

Drawwave Vocoder— 008takeshi

Vocoder instrument where the carrier wavetable, band gains, and LFO shape are all hand-drawn with the mouse

free open source GPL-3.0 VST3 AudioUnit Standalone instrument synth

Drops

Drops— Clearly Broken

Drops is a single audio file sample player. Load an audio file, play it, loop it, pitch shift it, and make it into something entirely new.

free open source GPL-3.0 LV2 effect instrument sampler filter

DrumCloud

DrumCloud— Fuimadane

Granular sample instrument that loads your own samples and manipulates them into massive atmospheric soundscapes, with built-in cloud reverb and a state variable filter

free open source ISC VST3 LV2 CLAP effect instrument synth sampler reverb granular

DrumCraker

DrumCraker— Wamphyre

Free drum sampler VST3 plugin optimized for Linux, FreeBSD, Windows and macOS, fully compatible with DrumGizmo drum kits.

free open source MIT VST3 instrument drums sampler

DrumGroovePro

DrumGroovePro— InToEtherion

A free, open-source MIDI drum groove sequencer VST3 plugin. Create, organize, and play custom drum patterns with an intuitive interface. For Windows, MacOS & Linux.

free open source GPL-3.0 VST3 midi instrument generator

DrumKit— danja

Stereo synthesised drum instrument and natural sound source for DrumGen and Xoxolo.

free open source MIT VST3 instrument drums

Drumlabooh

Drumlabooh— Peter Semiletov

A drum machine supporting Hydrogen, Drumlabooh/Drumrox, and SFZ drumkit formats, with a built-in mixer, per-instrument filter FX, and round robin/cycle random sample modes.

free open source GPL-3.0 VST3 LV2 instrument drums sampler

Duck Sampler

Duck Sampler— Jesús Valdez

A JUCE-based C++ sampler plugin featuring sample playback, ADSR envelope, LFO amplitude modulation, distortion toggle, and output volume control.

free open source MIT VST3 AudioUnit instrument sampler

Duck Synth

Duck Synth— Jesús Valdez

A JUCE-based C++ synthesizer plugin implementing basic additive synthesis with two oscillators, ADSR envelope, waveform selection (sine, square, triangle), reverb effect, and output volume control.

free open source MIT VST3 AudioUnit instrument synth

Element

Element— Kushview

The audio plugin host that isn't a DAW. Chain VST/VST3/AU/CLAP/LV2 plugins together as a standalone app, or load Element itself as a nested plugin host inside another DAW.

free open source GPL-3.0 VST3 LV2 AudioUnit CLAP Standalone VST2 midi instrument

EP-MK1

EP-MK1— Miguel Moreno

Real-time physical model of an Electric Piano.

free open source GPL-3.0 VST3 VST2 instrument synth piano

Equinox

Equinox— Oliver Rasmussen

Subtractive synthesizer and sampler plugin

free open source GPL-3.0 VST3 AudioUnit Standalone instrument synth sampler

Experiments in Representation (LV2)— James Morris

NJL plugins by Nick Lamb ported to the LV2 specification

GPL LV2 instrument

Fasttracker II (FT2) Plugin

Fasttracker II (FT2) Plugin— Blamstrain/TPOLM

Multi-instance-aware VST3/AU/LV2 plugin rewrite of 8bitbubsy's Fasttracker II clone, using JUCE

free open source BSD-3-Clause VST3 LV2 AudioUnit instrument sampler

Firefly Synth 2

Firefly Synth 2— Sjoerd van Kreel

Semi-modular synth.

free open source GPL-3.0 VST3 CLAP instrument synth

Floe

Floe— Floe

A streamlined sample-based instrument platform that loads and plays sample libraries in the Floe format.

free open source GPL-3.0 VST3 AudioUnit CLAP instrument sampler

Floozy— danja

Selectable 1-8 voice (default 4) hybrid physical/modulation synthesizer for expressive leads, plucks, and synthetic textures. Voice count is a host-automatable parameter; reducing it cuts CPU proportionally.

free open source MIT VST3 instrument

Floozy— Danny Ayers

free open source MIT LV2 instrument

Floozy Dev— Danny Ayers

free open source MIT LV2 instrument

Floozy Poly— Danny Ayers

free open source MIT LV2 instrument

Flues Bubbles— Danny Ayers

free open source MIT LV2 instrument

Flues Disyn— Danny Ayers

free open source MIT LV2 instrument

Flues Drumkit— Danny Ayers

free open source MIT LV2 instrument

Flues Gremlin— Danny Ayers

free open source MIT LV2 instrument

FluidSynth.clap

FluidSynth.clap— Cannery Coders

A clap-plugin bridge to fluidsynth.

free open source MIT CLAP instrument sampler

FTMSynth

FTMSynth— Synthesis

A physical modeling JUCE plugin using FTM approach, with visualization

free open source AGPL-3.0 VST3 instrument synth

Funky Moose Rootflow Synth

Funky Moose Rootflow Synth— Uwe Arthur Felchle

Organic synth with bio-sequencing, reactive visuals, and ambient modulation for evolving textures, pulses, and plant-like motion

free open source MIT VST3 AudioUnit Standalone effect instrument modulation

Fxme Sampler

Fxme Sampler— Olivier Doaré

Sampling instrument with a flexible multi-channel mixer, built-in convolution reverb, and advanced velocity mapping, configured via a portable mapping.xml file

free open source LGPL-3.0 VST3 AudioUnit instrument drums sampler

Gamelanizer

Gamelanizer— Luke M Craig

A real-time audio effect plugin inspired by the processes of traditional Indonesian Gamelan music. Accompanying material for the DAFx19 paper.

free open source GPL-3.0 VST3 AudioUnit effect instrument synth granular

Geonkick— Iurie Nistor

Geonkick is a free software synthesizer capable of generating a wide range of percussive sounds, including kicks, snares, claps, hi-hats, shakers, and also unique effect sounds.

open source GPL-3.0 LV2 instrument

Geonkick

Geonkick— Quamplex

Geonkick is a free software synthesizer capable of generating a wide range of percussive sounds, including kicks, snares, claps, hi-hats, shakers, and unique effect sounds.

free open source GPL-3.0 VST3 LV2 instrument drums synth

Geonkick Single— Iurie Nistor

Geonkick is a free software synthesizer capable of generating a wide range of percussive sounds, including kicks, snares, claps, hi-hats, shakers, and also unique effect sounds.

open source GPL-3.0 LV2 instrument

Glasses Of Water

Glasses Of Water— Freepats

Musical instrument made with glasses of water, recorded with an AKG Perception 120 microphone.

free open source CC0-1.0 instrument sampler

GlitchNexus

GlitchNexus— OTODESK

Granular glitch multi-effect plugin with a cross-modulation engine and a 16-step sequencer for controlled destruction

free open source AGPL-3.0 VST3 effect midi instrument synth sequencer granular

Grace

Grace— Shannon Oram

Sampler VST Plugin for Windows

free open source MIT instrument sampler

gRainbow

gRainbow— Strange Loops Audio

Granular synthesizer that uses pitch detection to choose harmonically matched grain candidates from a sample, producing MIDI-playable, polyphonic textures without the inharmonic artifacts of typical granular synths.

free open source GPL-3.0 VST3 LV2 AudioUnit Standalone midi instrument synth sampler granular

Granola

Granola— Dylan Martin

Sintetizador granular estocástico. (VST3)

free open source GPL-3.0 VST3 instrument

Gremlin— danja

Chaotic glitch instrument with scenes, macros, actions, randomisation, and performance controls.

free open source MIT VST3 instrument

GuitarMidi

GuitarMidi— Gerald Mwangi

Analyses a guitar's audio signal with a bank of bandpass filters and a neural net to extract played notes and outputs them as MIDI, with velocity/expressivity tracking.

free open source LGPL-2.1 LV2 midi instrument generator guitar

HandyOsc

HandyOsc— eulmour

A wave-warping effect that turns incoming audio into sawtooth-like waves for synth-style tones, with bitcrush, pre/post filtering, and a built-in oscilloscope.

free open source BSD-3-Clause VST3 effect instrument synth distortion

Hang D Minor

Hang D Minor— Freepats

Pitched steel percussion instrument tuned in D minor, recorded using a Zoom H1 portable recorder mounted on a tripod.

free open source CC0-1.0 instrument sampler

Harmonize

Harmonize— Sreya Saju

A Python app that converts vocal recordings into MIDI files. Transform your singing into digital music!

free open source MIT Standalone midi instrument generator

Helm

Helm— Matt Tytel

Polyphonic semi-modular synthesizer with a flexible modulation system.

free open source GPL-3.0 VST3 LV2 AudioUnit Standalone effect instrument modulation synth

Horse Pulse

Horse Pulse— DSmolken

Bass Tagelharpa played pizzicato.

free open source CC0-1.0 instrument sampler

Hue

Hue— bljustice

A plugin to mix various noise types into your audio signal.

free open source GPL-3.0 VST3 CLAP instrument generator

Hungarian Zither

Hungarian Zither— DSmolken

Hungarian 'prime' zither. A rectangular instrument with over a dozen strings, mostly tuned to G, with two melody courses and the rest as drones.

free open source CC0-1.0 instrument sampler

IEEE Single Precision Noise (LV2)— James Morris

NJL plugins by Nick Lamb ported to the LV2 specification

GPL LV2 instrument

Inharmonic

Inharmonic— mogesystem

A metallic-sound synthesizer using "piano inhamonicity model"

free open source MIT VST3 instrument synth piano

Integer Noise (LV2)— James Morris

NJL plugins by Nick Lamb ported to the LV2 specification

GPL LV2 instrument

INTERSECT

INTERSECT— tucktuckg00se

A nondestructive, time-stretching, and intersecting sample slicer plugin with independent per-slice parameter control.

free open source GPL-3.0 VST3 AudioUnit Standalone instrument sampler

JC303

JC303— Midilab

A bass synthesizer designed to simulate bass guitars. Based on the Roland TB-303 Bass Line.

free open source GPL-3.0 VST3 LV2 AudioUnit CLAP effect bass instrument synth distortion

jDrummer

jDrummer— Justin Ehrlichman

An open source drum plugin that is inspired by commercial plugins such as EZDrummer3 and the Logic Pro/GarageBand Drummer

free open source GPL-3.0 VST3 AudioUnit instrument drums sampler

jRhodes3c

jRhodes3c— Jeff Learman

1977 Rhodes Mark I Stage 73 piano.

free CC-BY-SA-4.0 instrument sampler

JS80P

JS80P— Attila M. Magyar

A MIDI driven, performance oriented, versatile synthesizer.

free open source GPL-3.0 VST3 instrument synth

jSteelDrum

jSteelDrum— Jeff Learman

C Steel Drum (a.k.a. 'steel pan') hand-made in Trinidad.

free open source Unlicense instrument sampler

JuceOPLVSTi

JuceOPLVSTi— bsutherland

A VST instrument providing an emulated OPL sound chip, the Yamaha FM synthesis chip used in classic PC sound cards.

free open source GPL-2.0 instrument

JuicySFplugin

JuicySFplugin— Birch San

SoundFont synthesizer for playing General Midi music using sf2 files.

free open source GPL-3.0 VST3 AudioUnit Standalone VST2 instrument synth sampler

June-21

June-21— mikerodd

A Roland Juno-1/Juno-2/MKS-50 emulator built with CSound and Cabbage, able to load and play real Juno 2 factory presets and community-made patches.

free open source GPL-3.0 VST3 Standalone instrument synth

Just a Sample

Just a Sample— Binyamin Friedman

A modern, open-source audio sampler

free open source MIT VST3 AudioUnit instrument sampler

Key Repeat

Key Repeat— Midilab

A lightweight beat repeat sampler.

free open source GPL-3.0 VST3 AudioUnit instrument sampler

Kotoist

Kotoist— Ales Tsurko

A VST plugin for live coding and algorithmic composition

free open source GPL-3.0 VST2 instrument generator

LayerEngine

LayerEngine— samplaman

Quad-layer granular synthesizer for sound design and atmospheric textures, with per-layer position/pitch/density jitter, filters, spatialization, modulation and a global FX suite (chorus, delay, phaser, limiter).

free open source MIT VST3 AudioUnit CLAP Standalone effect instrument modulation synth granular

LibreKick

LibreKick— Anorak

Open-source kick drum synthesizer using visual waveshaping to generate kick samples

free open source GPL-2.0 CLAP effect instrument distortion

LIRA·8

LIRA·8— Miguel Moreno

Virtual Lyra 8 in VST3, VST2, AUi, LV2 (Camomile) and Standalone (Pure Data) format. A digital attempt at emulating SOMA Lab's Lyra-8 signal flow.

free open source BSD-3-Clause VST3 LV2 AudioUnit VST2 instrument

Live Sampler

Live Sampler— Arunas Cesonis

Records incoming audio into a buffer and plays it back looped, sample-accurately, entirely controlled by MIDI notes for recording, triggering playback voices at offsets, and reversing playback.

free open source MIT VST3 CLAP Standalone instrument sampler

LooperPedal

LooperPedal— Rafael Bormann Chuede

Guitar looper pedal plugin with MIDI control — record, overdub, play, and pause loops up to 120 seconds with seamless crossfade

free open source GPL-3.0 LV2 midi instrument sampler guitar

Loopino

Loopino— Hermann

A creative sampler with a Key Cache generator, for Linux and Windows.

free open source BSD-3-Clause CLAP instrument sampler

Lost N' Found Piano

Lost N' Found Piano— Matthijs Hollemans

A virtual instrument plug-in that combines updated versions of the classic mda Piano and mda EPiano with a new coat of paint

free open source GPL-3.0 VST3 AudioUnit instrument piano

Lumen

Lumen— Kazi Ahmed

Wavetable synthesizer that turns dropped-in images into sound — brightness becomes waveform, image structure becomes harmonics

free open source MIT VST3 instrument synth

Macro Oscillator

Macro Oscillator— Reece Mitchell

Compact synthesizer built around the Mutable Instruments Braids macro oscillator engine, with multi-stage MSEG modulation

free open source AGPL-3.0 VST3 effect instrument modulation synth

Magical8bitPlug2

Magical8bitPlug2— yokemura

Magical 8bit Plug 2 is a software synthesizer to generate the tones like the old 8bit game consoles (NES / Game Boy style sounds). Developed from scratch with JUCE.

free open source GPL-3.0 VST3 VST2 instrument synth

Magneto

Magneto— danja

Midi-driven internal combustion engine simulator

MIT VST3 instrument

Matsuri

Matsuri— Alexander Brandt

TR-606 drum machine emulation, available as a CLAP plugin and a Web Audio/WebAssembly module

free NOASSERTION CLAP instrument drums

MDA BeatBox— djshaji

Contains three samples (kick, snare and hat) designed to be triggered by incoming audio in three frequency ranges. The default samples are based on the Roland CR-78.

GPL LV2 instrument

MDA DX10— djshaji

Sounds similar to the later Yamaha DX synths including the heavy bass but with a warmer, cleaner tone. This plug-in is 8-voice polyphonic.

GPL LV2 instrument

MDA ePiano— djshaji

Amp Rack is a Guitar / Voice Audio Effects Processor for Android. Amp Rack is an Open Source LADSPA Plugins Host for Android. More than 150 high quality audio plugins are available which can be added in any order to the

GPL LV2 instrument

MDA JX10— djshaji

When Vibrato is set to PWM, the two oscillators are phase-locked and will produce a square wave if set to the same pitch. Pitch modulation of one oscillator then causes Pulse Width Modulation. (pitch modulation of both o

GPL LV2 instrument

MDA Piano— djshaji

Amp Rack is a Guitar / Voice Audio Effects Processor for Android. Amp Rack is an Open Source LADSPA Plugins Host for Android. More than 150 high quality audio plugins are available which can be added in any order to the

GPL LV2 instrument

MDA Shepard— djshaji

This plug-in actually generates "Risset tones". Discrete stepping "Shepard tones" will hopefully be included in a future version.

GPL LV2 instrument

MDA TestTone— djshaji

Amp Rack is a Guitar / Voice Audio Effects Processor for Android. Amp Rack is an Open Source LADSPA Plugins Host for Android. More than 150 high quality audio plugins are available which can be added in any order to the

GPL LV2 instrument

MetreFiddler

MetreFiddler— Leon Focker

VST Plugin creative MIDI processing based on metre.

free open source GPL-3.0 VST3 CLAP midi instrument generator

MIDI Markov Rebuilt

MIDI Markov Rebuilt— Matthew Yee-King

An AI improviser plugin that learns a Markov model from an incoming MIDI stream in realtime and improvises with what it has learnt — generating chords from monophonic input, playing slower/faster, avoiding the input's re

free open source MIT VST3 AudioUnit Standalone instrument

Mika Micro

Mika Micro— tesselode

Small, expressive subtractive synthesizer.

free open source MIT instrument synth

Minaton-XT

Minaton-XT— AnClark Liu

A monophonic, subtractive, beefy analogue style bass and lead synthesizer. Ports the original Minaton by Nick Bailey to DPF (DISTRHO Plugin Framework).

free open source GPL-3.0 VST3 LV2 CLAP bass instrument synth

Modern Distortion Synthesizer

Modern Distortion Synthesizer— Colin Raab

A polyphonic wavetable synthesizer featuring four sources (two wavetable oscillators, a noise generator, and a sampler) with per-voice, per-source filters, envelopes, and distortion.

free open source BSD-3-Clause VST3 AudioUnit Standalone effect instrument synth distortion

Modern Kit

Modern Kit— Samuel Santana

Modern drum kit sample library in SoundFont (SF2) format

free open source MIT instrument drums sampler

Modular::Patterns

Modular::Patterns— Rochen Sound Collective

A MIDI arpeggiator that separates a chord channel from a rhythmic pattern channel, so a chord progression's timing and voicing can be edited independently in the DAW's own MIDI clip editor. Bitwig-only for now.

free open source GPL-3.0 VST3 CLAP midi instrument generator sequencer

Moka

Moka— danja

modal synth for struck objects — xylophone, glockenspiel, woodblock, glass bowl, metal sheet, and tube

MIT VST3 instrument

Monique

Monique— Surge Synth Team

Monophonic, realtime, subtractive-synthesis bass-and-lead software synthesizer.

free open source GPL-3.0 VST3 AudioUnit CLAP Standalone bass instrument synth

MonkSynth

MonkSynth— Jon Taylor

Monophonic vocal synthesizer using FOF synthesis, inspired by Delay Lama

free open source MIT VST3 AudioUnit instrument

Mosaic— danja

Four-slot WAV sampler with deterministic slicing, zero-crossing boundary snapping, pitch variation, reverse probability, stereo spread, and autonomous triggering.

free open source MIT VST3 midi instrument

MyDrum7

MyDrum7— realsigmamusic

High-fidelity virtual acoustic drum kit plugin in LV2 format, built natively for Linux with a focus on organic, realistic sound and low CPU usage

free open source CC0-1.0 LV2 instrument drums sampler

Naked Drums

Naked Drums— Wilkinson Audio

Multi-mic drumkit, with 10 round-robins, up to 5 velocity layers and several mic layers (Direct, OH, Close room, Far rooms, Mid-side and Wide OH).

free CC-BY-4.0 instrument drums sampler

Niner

Niner— Hyperfocus DSP

Monophonic analogue kick drum synthesizer — 3 voices, compression, distortion, EQ. VST3/CLAP/Standalone for Linux, Windows, macOS

free open source GPL-3.0 VST3 CLAP Standalone instrument

Ninjas 2

Ninjas 2— Clearly Broken

Easy to use sample slicer, quick slicing of sample and auto-mapping slices to midi note numbers.

donationware open source GPL-3.0 LV2 VST2 instrument sampler

Noizier

Noizier— Michael Hurst

A Simple Noise Generator

free open source GPL-3.0 VST3 LV2 instrument generator

Nyasynth

Nyasynth— Aaron Kofsky

Nyasynth is a recreation / modern port of the famous Meowsynth (cat meow synthesizer). A fun, meme-inspired VST3 instrument with cat vocal synthesis. Available for Windows and macOS (ARM + Universal).

free NOASSERTION VST3 instrument synth

OAO

OAO— Iris

Oops! All Operators! A twelve-operator FM/phase-modulation synthesizer with comb and granular filters.

free open source MIT VST3 instrument synth

OB-Xd

OB-Xd— discoDSP

Recreates the sound and behaviours of the Oberheim OB-X, without the limitations of the original hardware including features such as micro random detuning.

free open source GPL-3.0 Standalone VST2 instrument synth

OB-Xf

OB-Xf— Surge Synthesizer Team

OB-Xf is a continuation and modernization of the last open source release of OB-Xd by 2DaT and later discoDSP. It is inspired by the venerable Oberheim OB-X.

free open source GPL-3.0 VST3 LV2 AudioUnit CLAP instrument synth

OBSIDIAN Neural

OBSIDIAN Neural— Innermost

AI-powered live performance tool (VST3/AU/Standalone with Ableton Link). 8-track sampler with real-time AI loop generation from text prompts using multiple models. Playable AI instrument for live sets.

free open source AGPL-3.0 VST3 AudioUnit Standalone instrument sampler

OctaSine

OctaSine— Joakim Frostegård

Frequency modulation-based synthesizer plugin.

free open source AGPL-3.0 CLAP VST2 effect instrument modulation synth

Odin

Odin— TheWaveWarden

12-voice polyphonic semi-modular synthesizer. Earth shattering basses, exquisite leads or mad FX, Odin's got them all! Use the classic sound of analog waveforms - or draw your own.

free NOASSERTION VST3 LV2 AudioUnit CLAP instrument synth

Odin 2

Odin 2— TheWaveWarden

24-voice polyphonic synthesizer with filter emulations and a modulation matrix, supporting classic analog waveforms and custom-drawn waves.

free open source GPL-3.0 VST3 LV2 AudioUnit CLAP instrument synth

Oi, Grandad!

Oi, Grandad!— Modular Samples

Four-voice granular sampler with modulation and resynthesis capabilities, built with HISE.

free open source GPL-3.0 VST3 AudioUnit Standalone instrument synth sampler granular

OmniAmp

OmniAmp— ArborealAudio

Multi-purpose audio tool.

free open source GPL-3.0 VST3 VST2 effect bass instrument distortion compressor dynamics reverb amp guitar

OPL

OPL— discoDSP

OPL FM synth plugin emulates a digital sound synthesis chip developed by Yamaha in the mid 1980s.

free open source GPL-3.0 VST3 AudioUnit AAX VST2 instrument synth

OPNplug— Jean Pierre Cimalando

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

open source BSL-1.0 LV2 instrument

OPNplug

OPNplug— Jean Pierre Cimalando

FM synthesizer based on OPL3 and OPN2 sound chip emulations. Synthesis of melodic and percussive instruments, support for dynamic parameterization and automation.

free open source BSL-1.0 VST3 LV2 AudioUnit Standalone VST2 instrument synth

Orbital Bass Engine

Orbital Bass Engine— Tanguy VIVIER

An open-source bass guitar audio plugin built with JUCE, providing a complete signal chain for bass tone shaping — analog-modeled compression, vintage-style drive amplification, and a post-amp effects rack.

free open source GPL-3.0 VST3 AudioUnit Standalone effect bass instrument compressor dynamics

OS-251

OS-251— Utokusa

JUNO style digital subtractive synthesizer with a simple yet powerful DSP algorithm.

free open source GPL-3.0 VST3 LV2 AudioUnit instrument synth

Otodesk Sampler

Otodesk Sampler— OTODESK

Multi-slot sampler with intelligent pitch detection, real-time RubberBand time-stretching, and a deep modulation engine

free open source AGPL-3.0 VST3 effect instrument modulation sampler

OwlBass

OwlBass— PentagramPro

An additive single voice bass synthesizer.

free open source GPL-3.0 bass instrument synth

PadSeq— Danny Ayers

free open source MIT LV2 instrument

PAPU

PAPU— Roland Rabien

Gameboy PAPU sound chip emulation, available as a VST2/VST3/AU/CLAP/LV2 plugin.

free open source GPL-2.0 VST3 LV2 AudioUnit CLAP VST2 instrument

Perlin Noise Mod

Perlin Noise Mod— Florian Mrugalla

Synthesizes Perlin noise for use as a modulation source in DAWs that allow audio or MIDI CC signals to modulate other plugins' parameters, such as Bitwig and Reaper

free open source GPL-3.0 VST3 effect instrument modulation generator

PianoForte

PianoForte— Carlos Tarjano

Piano Forte Audio Plugin

free open source MIT VST3 LV2 instrument

PlaitsVST

PlaitsVST— masseyis

Polyphonic VST3/AU plugin port of Mutable Instruments Plaits macro-oscillator. Features 16 synthesis engines, polyphony up to 16 voices, AD envelope, and factory + user presets.

free open source MIT VST3 AudioUnit instrument synth

Prism

Prism— powerpcme

Granular sampler with 10 independent voices, each with its own sample, loop, and modulation state, per-voice DSP (pitch shift, overdrive, bit crush, AM), and an XY pad for pan/volume placement

free open source AGPL-3.0 VST3 AudioUnit Standalone instrument synth sampler granular

Pro Punk Drums

Pro Punk Drums— Paul Jones

JUCE simulation of my drum kit with mixing tools

free open source GPL-3.0 VST3 AudioUnit AAX instrument drums sampler

Psy Melody

Psy Melody— EDEN

MIDI generator plugin for Psytrance production — generates melodies, basslines, and chord voicings from scales, chord progressions, and subgenre-specific rhythm patterns

free open source AGPL-3.0 VST3 AudioUnit instrument generator

Pulse— danja

Eight voice subtractive synthesiser with saw, square and triangle oscillators, a one-pole lowpass and an attack-release envelope.

free open source Apache-2.0 WebAudio instrument

Punk Boost

Punk Boost— Guillermo Moñino Cánovas

A JUCE audio plugin that pretends to emulate the behaviour of a bass preamp pedal effect.

free open source MIT VST3 AudioUnit effect bass instrument amp guitar

Quadrangle— Danny Ayers

free open source MIT LV2 instrument

Quetzalcoatl

Quetzalcoatl— Modular Samples

Quetzalcoatl is an 8-layer sample playback plugin (rompler) for Mac, Windows & Linux. Features multi-stage crossfading, wavetable mode, wavefolder, extensive modulation/sequencing, filter, and a large built-in sound libr

free open source GPL-3.0 VST3 AudioUnit instrument synth sampler

RdPiano

RdPiano— Giulio Zausa

Low-level emulator for SA-synthesis pianos, such as the Roland MKS-20, RD1000 and the Rhodes MK-80 electric piano

free open source GPL-3.0 VST3 LV2 AudioUnit Standalone instrument piano

Recall Sampler

Recall Sampler— ummshsh

VST plugin that records everything, you can drag recoreded parts anywhere

free open source MIT VST3 LV2 instrument sampler

Resonarium

Resonarium— Gabriel Soule

An expressive, semi-modular, and comprehensive physical modeling/waveguide synthesizer

free open source GPL-3.0 VST3 AudioUnit Standalone instrument synth

RetroTrax

RetroTrax— Mukkemann1972

A tracker plugin and standalone app in the spirit of ProTracker, FastTracker II, and OctaMED, with Amiga sample sound and C64 SID chip emulation.

free open source GPL-3.0 VST3 CLAP Standalone instrument

Ripchord

Ripchord— prg318

A free MIDI plugin that makes it easy to create, perform and remix chord progressions. This fork adds Linux and CLAP support.

free open source GPL-3.0 VST3 CLAP midi instrument generator

RipplerX

RipplerX— TiagoLr

A physically modeled synth, capable of sounds similar to AAS Chromaphone and Ableton Collision.

free open source GPL-3.0 VST3 LV2 AudioUnit instrument synth

RP2A03

RP2A03— Roland Rabien

Nintendo Entertainment System (NES) sound chip emulation, available as a VST2/VST3/AU/CLAP/LV2 plugin.

free open source LGPL-2.1 VST3 LV2 AudioUnit CLAP VST2 instrument

Rumor

Rumor— Hermann

A pure, nasty growling bass fuzz pedal, with bold out-front presence and cutting articulation.

free open source 0BSD LV2 effect bass instrument distortion

Salamander Drumkit

Salamander Drumkit— Rytmenpinne

Drumkit recorded in the garage with an acoustic sound/feel.

free CC-BY-SA-4.0 instrument drums sampler

Salamander Grand Piano

Salamander Grand Piano— Alexander Holm

Yamaha C5, recorded with two AKG c414 disposed in an AB position ~12cm above the strings.

free CC-BY-4.0 instrument sampler piano

Sam's Sonor

Sam's Sonor— Sam Greene

Sonor Force 3001 drum kit sampled with 4 velocity levels for each part.

free CC-BY-SA-4.0 instrument drums sampler

Scale Remapper

Scale Remapper— xivilay

Remaps MIDI input (e.g. the white keys of a keyboard) onto a chosen musical scale before sending it out as MIDI, so any controller can play in-scale.

free open source GPL-3.0 VST3 LV2 AudioUnit Standalone midi instrument generator

Sektron

Sektron— emprcl

a midi step sequencer in the terminal, made with live performance in mind :loop:

free open source MIT Standalone midi instrument generator sequencer

Sfizioso Player

Sfizioso Player— Patrizio Rullo

An open-source SFZ sample player (VST3/AU/Standalone) with MPE support, built on the sfizioso engine — an independent, MPE-capable fork of sfizz.

free open source AGPL-3.0 VST3 AudioUnit Standalone instrument sampler

Sfizz

Sfizz— SFZTools

SFZ parser and synth c++ library, providing AU / LV2 / VST3 plugins and JACK standalone client.

free open source BSD-2-Clause VST3 LV2 AudioUnit instrument synth sampler

Sfizz UI

Sfizz UI— SFZ Tools

AU, LV2 and VST3 sample-player plugins for the sfizz SFZ engine. Packaged from the sfizz-ui repo, the successor to the now-archived sfizz repo's release binaries.

free open source BSD-2-Clause VST3 LV2 AudioUnit instrument sampler

sfzq

sfzq— Steve Folta

SFZ/SF2 Player CLAP plugin for Linux

free open source MIT CLAP instrument sampler

Sick Beat Betty

Sick Beat Betty— Jason Howard

A MIDI drum machine and pattern generator, available as a VST plugin and standalone application.

free open source GPL-3.0 VST3 midi instrument drums generator sequencer

SID

SID— Roland Rabien

Commodore 64 SID sound chip emulation, available as a VST2/VST3/AU/CLAP/LV2 plugin.

free open source GPL-3.0 VST3 LV2 AudioUnit CLAP VST2 instrument

Six Sines

Six Sines— BaconPaul

Obtuse? Expressive? Amazing? FM? RM? AM? PM? YES!. As one fellow dev said, "With my synth its hard to make a bad sound, and its nice that Six Sines is the opposite"

free open source MIT VST3 AudioUnit CLAP Standalone instrument synth