C Hackl
Matrix
Matrix by C Hackl is a free modular synthesizer plugin for Windows featuring unique OSC, ADSR, and LFO matrices with flexible routing for sound creation.
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.
KX77FREE
Kx-PolyMod
Kx-PolyMod is a vintage analog modular synthesizer featuring up to 6 voices, a 15x12 modulation matrix controlled by a 5x5 submatrix, and stereo routing. It includes 5 VCOs with 5 waveforms, phase modulation, and sync on VCO1, plus an SF2 player.
VST2Synths
KX77FREE
Kx-PolyM-CSE
Kx-PolyM-CSE is a vintage modular polyphonic synthesizer plugin featuring a Yamaha CS70M emulation, stereo routing, and up to 6 voices with multiple waveform oscillators.
VST2Synths
KX77FREE
Kx-Modulad
Kx-Modulad is an analog modular synthesizer featuring stereo SF2 player, additive synthesis WaveTracer, and 128 presets inspired by 70's and 80's sounds. It offers stereo routing with pre-connected modulations and a customizable GUI skin.
VST2Synths
Krakli
Komodo
Komodo by Krakli is a free semi-modular synthesizer for Windows offering diverse synth engines including virtual analog, physical modeling, FM, and ring modulation tones combined with filters, vector controllers, envelopes, LFOs, and effects.
VST2Synths
MVX Synths
Kobe
Kobe by MVX Synths is a semi-modular synthesizer offering up to 3 voices with diverse oscillator types including analog, phase distortion, sample players, and soundfont oscillators.
VST2Synths
g200kg
Kamioooka
Kamioooka by g200kg is a polyphonic full-modular synthesizer featuring a patch cable system and 10 module slots. It offers 7 module types including VCO with PWM/FM/Sync, various filters, envelopes, LFO, sequencer, and more for flexible sound design.
VST2Synths
MVX Synths
Groth
Groth by MVX Synths is a matrix synthesizer featuring crossfade oscillators and a simplified MVM engine to create varied timbres.
VST2Synths
DSK
ZetH
ZetH by DSK is a free 3-oscillator analog synthesizer offering advanced modulation, filter, effects, and an arpeggiator in VST2 format for Windows.
VST2Synths
Tekky Synths
ZeNeRyC Free
ZeNeRyC Free by Tekky Synths is a virtual synthesizer designed for psytrance with dual oscillators, detune controls, and multi-state filters per oscillator.
VST2Synths
Dream Vortex Studio
Transcender SE
Transcender SE by Dream Vortex Studio is a trance gate synthesizer plugin for Windows, offering VST2 format support on 32-bit systems.
VST2Synths
DSK
TechSynth PRO
TechSynth PRO by DSK is a Windows-only VST2 synthesizer featuring two oscillators with five waveforms, an advanced filter with ADSR and LFO, and a 32-step sequencer.
VST2Synths
Odosynths
Tb unknown
Tb unknown by Odosynths is a free bassline synthesizer plugin designed for Windows 32-bit systems.
VST2Synths
Max Project
T-Rex Bass
T-Rex Bass by Max Project is a free bass synthesizer plugin for Windows featuring an arpeggiator and a step LFO for dynamic bass sound design.
VST2Synths
Max Project
T-Rex ArgenSynth
T-Rex ArgenSynth by Max Project is a free arpeggiator synthesizer plugin featuring two oscillators, five waveforms, onboard effects, and a retro design GUI for Windows 32-bit.
VST2Synths
Syntler
Syntler
Syntler is a free Windows VST synthesizer featuring joystick-controlled groove and arpeggio play with MIDI support.
VST2Synths
Psychic Modulation
Subconscious
Subconscious by Psychic Modulation is a dual hybrid synthesizer featuring unique arpeggiation and gate sequencers, with independent filter and amp envelopes for each section.
VST2Synths
Simple Media
Silkworm
Silkworm by Simple Media is a SuperSaw style analogue synthesizer featuring multiple waveforms, a gate sequencer, delay, powerful filter, modulation, and dynamic controls with stereo spread.
VST2Synths
The free-plugin pulseUpdated Aug 23, 2026
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