VisareTone
Rotor Style ORGAN
Rotor Style ORGAN simulates rotary speakers for classic organs, electric guitars, and more with precise bass and treble modulation settings.
VST2Modulation
Instruments, effects, and hidden gems
Free plugins: Modulation
Browse 73 reviewed free modulation plugins for Windows, with compatibility, formats, interface previews, and installation details.
2140reviewed plugins
79%install-ready
Top 5category ranks
40sound categories
All categoriesDelay · 84Reverb · 76Dynamics · 106Mastering · 88Gates & de-essers · 24Pitch · 31Eq · 80Spectral · 21Filters · 69Distortion & overdrive · 70Lofi · 36Tube & tape · 19Preamps & amps · 29Modulation · 73Spatial · 51Multi-effects · 24
Filtered catalog
73 plugins
Every reviewed plugin matching the current filters.
Owl O Lantern
PuppySnuggles
PuppySnuggles by Owl O Lantern is a classic tremolo effect with a unique 'Swamp' knob that adds distortion and rolls off highs for a vintage 'Brownface' tremolo sound. It is available as a free VST2 plugin for Windows.
VST2Modulation
Audio Damage
PulseModulator
PulseModulator by Audio Damage is a free VST tremolo pedal emulation featuring three LFOs modulating a VCA and a distortion circuit for unique modulating pulses, with tempo sync support.
VST2Modulation
Adam Szabo
Phazor
Phazor is a free phaser effect plugin that accurately emulates the classic phaser found in Virus synthesizers, delivering its distinctive modulation sound.
VST2Modulation
Audio Damage
Phase Two
Phase Two by Audio Damage is a free VST2 plugin that recreates the classic Mutron Bi-Phase phaser with two controllable 6-stage phasers for rich stereo modulation.
VST2Modulation
Pecheneg FX
Pcheneg Tremolo
Pcheneg Tremolo by Pecheneg FX is a free tremolo effect offering adjustable modulation curve shape and host-synchronized frequency control for dynamic sound modulation.
VST2Modulation
Oblivion Sound Lab
OSL Chorus
OSL Chorus by Oblivion Sound Lab models the classic Juno 60 chorus, delivering rich, wide modulation for synthesizers, guitar, bass, and more.
VST2Modulation
SynthIV
Omission
Omission by SynthIV is a step-sequenced volume reducer and muter featuring 16-step patterns, tempo sync, and speed multiplier for creative modulation effects.
VST2Modulation
ndc Plugs
ndcTrem+
ndcTrem+ by ndc Plugs is a free tremolo and auto-panner plugin with tempo-sync for Windows and macOS in VST2 format.
VST2Modulation
Variety Of Sound
NastyDLA
NastyDLA by Variety Of Sound is a classic chorus echo effect plugin with tape-delay style feedback and saturation, delivering authentic signal path coloration.
VST2Modulation
beatassist.eu
Modulation Studio
Modulation Studio by beatassist.eu offers five distinct modulation effects including chorus, flange, phaser, reverb, and distortion for versatile sound shaping.
VST2Modulation
Sender Spike
Modul Nr 8
Modul Nr 8 by Sender Spike is a free dual LFO stereo chorus plugin inspired by unique Japanese stomp-boxes, offering complex modulation through layered LFOs.
VST2Modulation
Perspective Sound
MidiWah
MidiWah is a free wah effect plugin by Perspective Sound featuring variable tone control and MIDI frequency control. It operates in true stereo, ideal for drums and unconventional wah applications.
VST2Modulation
Madbee Audio
maDulation
maDulation by Madbee Audio is a free modulation toolbox featuring a bandpass filter, drive control, and mono/stereo switch for Windows.
VST2Modulation
Lurker Beats
Lurker Chorus
Lurker Chorus is a 4-voice stereo chorus effect plugin featuring tempo-sync, stereo spread, and visual color animations for each chorus sweep.
VST2Modulation
SyncerSoft
Lizard Morph
Lizard Morph by SyncerSoft is a free detune and morph modulation effect delivering powerful sounds preferred by trance and electronic music producers. It features LFO modulation sections for dynamic sound shaping.
VST2Modulation
Oli Larkin
LFO Chopper
LFO Chopper by Oli Larkin is a free amplitude modulation and tremolo plugin featuring multiple LFO waveshapes.
VST2Modulation
B Serrano
IO Volume
IO Volume by B Serrano is a free Windows VST2 plugin offering multi-level volume adjustment with an advanced 32-stage loopable envelope GUI.
VST2Modulation
The free-plugin pulseUpdated Aug 23, 2026
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