Stone Voices
Marazmator
Marazmator by Stone Voices is a free VST2 sound FX synthesizer for Windows that generates unusual sound forms ranging from natural phenomena to technical and vocal sounds.
VST2Synths
Instruments, effects, and hidden gems
Free plugins: Instruments
Browse 1072 reviewed free instrument plugins for Windows, with compatibility and installation details.
2140reviewed plugins
79%install-ready
Top 5category ranks
40sound categories
All categoriesDrum kits · 29Drum synths · 14Drum machines · 9Single drums · 27Groove / sequencers · 10Percussion · 30Drums · 30Guitar & bass · 28Piano & keys · 79Brass & wind · 44Folk & ethnic · 53Orchestral · 24Samplers · 52Loop & scratch · 12Synths · 587Organs · 30
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1072 plugins
Every reviewed plugin matching the current filters.
E-phonic
Invader
Invader by E-phonic is a free Windows VST2 FX synthesizer featuring 2 oscillators, a noise generator, and multiple modulation modes including FM, sync, and ring modulation. It includes 2 modulators, an LP filter, stereo modulated delay, glide, and supports MIDI CC.
VST2Synths
Krakli
Harm
Harm by Krakli is a VST2 synthesizer plugin for Windows designed to create aggressive and strange sounds. It includes 64 patches by Dimitri Schkoda for immediate use.
VST2Synths
Krakli
Gargoyle 2
Gargoyle 2 by Krakli is a noise-making synthesizer plugin designed for sound designers and musicians who enjoy experimental sound manipulation. It offers a unique challenge for fans of the original Gargoyle synth.
VST2Synths
DSK
Ethereal Padz
DSK Ethereal Padz is a free Windows VST2 synthesizer specializing in lush pad sounds with three layers, advanced filters, and modulation options.
VST2Synths
beatassist.eu
Esfera 2
Esfera 2 by beatassist.eu is a free FM synthesizer tailored for creating dark atmospheres, soundscapes, effects, and pads with three mini-FM synths and dual 16-step steppers per synth.
VST2Synths
Krakli
EffEm
EffEm by Krakli is a free VST2 synthesizer plugin for Windows that creates rhythmic sound effects and sci-fi noises with a host-synced sequencer and unique filter array.
VST2Synths
DSK
DreamZ
DreamZ by DSK is a free experimental additive synthesizer plugin for Windows offering three LFOs assignable to cutoff, resonance, pan, and sync.
VST2Synths
DSK
Darkness Theory 3
DSK Darkness Theory 3 is a free ambient synthesizer featuring three advanced oscillators with 72 waveforms, comprehensive envelope controls, and versatile filtering options.
VST2Synths
DSK
ChoirZ
ChoirZ by DSK offers 3 layers with 32 choir and pad sounds, featuring ADSR, fine-tuning, pan control, advanced filters, LFO modulation, chorus, and reverb effects for rich vocal and atmospheric textures.
VST2Synths
Broken Gadget
Catalyst
Catalyst by Broken Gadget is a Windows-only VST2 synth focusing on unique sound creation through dynamically evolving hybrid waveshapes.
VST2Synths
Homegrown Sounds
Astralis Baby Bion
Astralis Baby Bion is a lightweight synthesizer plugin for Windows using the oscillator from the upcoming Astralis Bion. Designed to complement the free SoundScaper FX plugin by Homegrown Sounds, it provides a versatile synth sound source.
VST2Synths
DSK
ZitH
ZitH by DSK is a free 3-layer waveform synthesizer offering 53 waveforms, octave selection, ADSR envelopes, advanced LFOs with multiple outputs, a versatile filter, and effects including space, delay, and flanger. It features an arpeggiator and assignable automation.
VST2Synths
Full Bucket Music
WhispAir
WhispAir is a high-performance wavetable synthesizer offering three flexible oscillators, a classic stereo filter, multiple modulation sources, and an easy-to-navigate single-page interface.
VST2Synths
Brain Control
Tunefish 4
Tunefish 4 is a free additive and wavetable synthesizer plugin developed by Brain Control as a compact yet powerful alternative to Tunefish 3, designed for the 64k intro Turtles all the way down.
VST2Synths
Opulent Audio
Tenacity
Tenacity by Opulent Audio is a monophonic synthesizer featuring two sample-based oscillators with 35 waveforms each. It offers tempo-synced rhythmic gates, waveshaping, adjustable bitrate, and oscillator hard-sync for unique sound design.
VST2Synths
Siegfried Kullmann
SQ8L
SQ8L is a free software emulation of the classic Ensoniq SQ80 synthesizer, featuring 3 digital wavetable oscillators per voice and analog-style 4-pole lowpass filters.
VST2Synths
Contralogic Productions
Snorgan
Snorgan is a free wavetable synthesizer by Contralogic Productions featuring waveform layering, dual 2-pole filters, and delay/flanger effects with modulation.
VST2Synths
The free-plugin pulseUpdated Aug 23, 2026
1696 plugins are ready to install in one click.