Instruments, effects, and hidden gems

Free plugins: Instruments

Browse 1072 reviewed free instrument plugins for Windows, with compatibility and installation details.

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1072 plugins

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Seeq One plugin interface
Odosynths

Seeq One

Seeq One by Odosynths is a free VST2 synthesizer plugin for Windows featuring five sequencers that modulate notes, filter, pulse width, resonance, and phase effects.

VST2Synths
Samurai plugin interface
TA Programming

Samurai

Samurai by TA Programming is a free additive synthesizer featuring dual oscillators with 50 sinusoidal partials each, precisely tuned to the harmonic series. It offers harmonic preservation algorithms and detuning options for rich sound design.

VST2Synths
S3K plugin interface
Krakli

S3K

S3K by Krakli is a mono synth blending retro tones with a modern edge. It features 64 diverse patches and dynamic modulation capabilities.

VST2Synths
Radium plugin interface
B Serrano

Radium

Radium by B Serrano is a 16-voice polyphonic VST2 synthesizer for Windows featuring subtractive and FM synthesis with 2 operators, a comfortable XY pad, auto pan, and MIDI learn.

VST2Synths
PsYbAsSyX Free plugin interface
Tekky Synths

PsYbAsSyX Free

PsYbAsSyX Free by Tekky Synths is a free VST2 synthesizer for Windows designed to create instant bass lines with a multi-oscillator and built-in step sequencer.

VST2Synths
PolyWaves plugin interface
Audioutsider

PolyWaves

PolyWaves by Audioutsider is a free Windows VST2 synth featuring 3 oscillators, multi arpeggiators, sequenced modulations, sample reading, distortion, and a vowelliser effect.

VST2Synths
PIO plugin interface
Tyapu

PIO

PIO by Tyapu is a free synthesizer plugin featuring an arpeggiator and ADSR-controlled MOOG-style filter for dynamic sound shaping.

VST2Synths
Photon plugin interface
Psychic Modulation

Photon

Photon by Psychic Modulation is a free experimental hybrid synthesizer featuring a unique warp engine that creates evolving rhythmic sequences, random arpeggios, and sample & hold style effects. It includes two oscillators with sync and FM warp capabilities.

VST2Synths
Pandemonium plugin interface
Psychic Modulation

Pandemonium

Pandemonium by Psychic Modulation is a hybrid FM synthesizer featuring unique SnH style arpeggiator and flexible routing of its oscillators for diverse sound design.

VST2Synths
NuCLeoDoM Free plugin interface
Tekky Synths

NuCLeoDoM Free

NuCLeoDoM Free by Tekky Synths is a Windows-only synthesizer plugin featuring sequencing, multispectral filtering, and multi-waveform oscillators for dynamic synth lines.

VST2Synths
MS-01 plugin interface
Midinaut

MS-01

MS-01 by Midinaut is a Windows VST2 synthesizer featuring a 16-step pitch and filter sequencer with dual oscillators, noise, mono/poly modes, and flexible modulation options.

VST2Synths
Metatron plugin interface
Psychic Modulation

Metatron

Metatron by Psychic Modulation is a 2-oscillator analogue synthesizer featuring a unique arpeggiator and gated modulation sequencer for creating rhythmic patterns and sounds.

VST2Synths
M-Phasewave plugin interface
TubeOhm

M-Phasewave

M-Phasewave by TubeOhm is a monophonic phase distortion synthesizer plugin featuring true stereo output, dual LFOs, two arpeggiators, and built-in chorus, delay, and reverb effects. It includes MIDI learn and offers normal and expert modes for multi-stage envelopes.

VST2Synths
KxStep plugin interface
KX77FREE

KxStep

KxStep is a vintage modular monophonic synthesizer featuring a 16-step CV Gate sequencer, dual LFOs with delay and host sync, sample and hold, ring modulator, noise generator, dual VCOs with sync, SF2 player, mixer with vintage EQ, multimode filters, and flexible envelope generators.

VST2Synths
K700 plugin interface
Krakli

K700

K700 by Krakli is a dual synth VST2 plugin for Windows, capable of creating complex, rich texture sounds with two independent, multi-timbral lines.

VST2Synths
IV Line plugin interface
SynthIV

IV Line

IV Line by SynthIV is a 4-step synthesizer and sequencer for Windows offering pitch control per oscillator, versatile filters, and tempo-synced delay to craft trance-like melodies and rhythms.

VST2Synths
hydi plugin interface
TD

hydi

hydi is a quirky subtractive synthesizer with a unique 2-voice, monosynth-style design inspired by Don Buchla's philosophy.

VST2Synths
GENESYN 2 plugin interface
Orchestools

GENESYN 2

GENESYN 2 by Orchestools is a 32-step arpeggiator additive synthesizer featuring 4 generators and over 100 presets for crafting leads, pads, synths, and textured sounds with extensive slider controls and MIDI support.

VST2Synths
The free-plugin pulseUpdated Aug 24, 2026

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