Instruments, effects, and hidden gems

Free plugins: Synths

Browse 587 reviewed free synths plugins for Windows, with compatibility, formats, interface previews, and installation details.

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Voc plugin interface
SocaLabs

Voc

Voc by SocaLabs is a free VST2 plugin that emulates the glottis and the shape of the vocal tract, allowing you to modify sounds by constricting the oral cavity. It features a waveform display for visual feedback.

VST2Synths
V-Koder plugin interface
DCSI

V-Koder

V-Koder by DCSI is a free sample-based synth instrument featuring 3 vocoded short nonsense voice soundsets across 3 octaves.

VST2Synths
Thundergod plugin interface
smokedesigns

Thundergod

Thundergod is a polyphonic synthesizer VST2 plugin designed for creating Viking style music with easy sound control and integrated effects.

VST2Synths
The Shepherd plugin interface
Simple Media

The Shepherd

The Shepherd is a minimalist mini-synth by Simple Media crafted to recreate the haunting whistling sound from Kill Bill's Ennio Morricone soundtrack. Designed for Windows 32-bit systems in VST2 format.

VST2Synths
Terrormin plugin interface
Quilcom

Terrormin

Terrormin by Quilcom is a free theremin simulation plugin available in VST2 format for Windows 32 and 64-bit systems.

VST2Synths
Synlay plugin interface
Elena Design

Synlay

Synlay by Elena Design is a unique delay-based synthesizer offering three parallel tuned-delay modules for creating diverse sounds from orchestral tones to synthetic textures.

VST2Synths
Super Spook Keys plugin interface
Simple Media

Super Spook Keys

Super Spook Keys by Simple Media is a free VST plugin that replicates the classic Theremin sound using sine, sawtooth, triangle, and pulse waves, with variable LFO and wave shaping options.

VST2Synths
Sounds of old TV games plugin interface
SyncerSoft

Sounds of old TV games

Sounds of old TV games is a VSTi plugin by SyncerSoft that introduces the sound atmosphere of vintage TV games into your mixes with 21 unique sound profiles.

VST2Synths
Radio plugin interface
Softrave

Radio

Radio by Softrave is a free VST2 synth plugin for Windows that creates dirty, radiolike pulsating sounds synchronized to BPM. It suits genres like IDM, cut'n'click, noise, and industrial.

VST2Synths
Electro Bass Landscapes plugin interface
SyncerSoft

Electro Bass Landscapes

Electro Bass Landscapes is a free electro bass ROM synthesizer for Windows designed to create musical effects for cinema, play scoring, and various electronic music styles.

VST2Synths
easy-joy o1 plugin interface
easytoolz

easy-joy o1

easy-joy o1 by easytoolz is a joystick controlled synthesizer featuring four oscillators, multifilter joy-mixer, joy-ADSR, and customizable GUI colors.

VST2Synths
ZMZ 2000 plugin interface
KBplugs

ZMZ 2000

ZMZ 2000 by KBplugs is a free VST2 synthesizer plugin for Windows, emulating the SMS 2000 fake synth architecture without presets.

VST2Synths
YAVA3 plugin interface
Krakli

YAVA3

YAVA3 by Krakli is a free Windows VST2 synth designed for creating big pads, unique sound effects, and rasping leads. It features a powerful modulation matrix ideal for sound experimentation.

VST2Synths
XXX plugin interface
DSK

XXX

XXX by DSK is an experimental additive synthesizer featuring a filter oscillator, one oscillator-controlled LFO, and three assignable LFOs.

VST2Synths
XtrudeR M plugin interface
MVX Synths

XtrudeR M

XtrudeR M is an experimental synthesizer by MVX Synths featuring complex brand morph oscillators that combine AM, FM, and Sync synthesis, along with filter matrix presets and adjustable envelope decay speed.

VST2Synths
Xhip plugin interface
Xhip

Xhip

Xhip is a free dual-oscillator polyphonic synthesizer inspired by classic late 80s poly synths. It delivers rich sounds including strings, pads, basses, leads, organs, pianos, percussion, bells, vocals, and effects.

VST2Synths
WS 2 plugin interface
GTG

WS 2

WS 2 by GTG is a hybrid synthesizer combining waveshaping and phase modulation with tempo-synced LFO, modulation envelope, and joystick controller for expressive sound design.

VST2Synths
Whistler plugin interface
Contralogic Productions

Whistler

Whistler is a free synthesizer plugin for Windows that creates unique sounds by routing random noise through resonating bandpass filters controlled by your played notes. It includes overdrive distortion, tempo-synced echo, and an 8-bit retro noise mode.

VST2Synths
The free-plugin pulseUpdated Aug 23, 2026

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