CodeFN42
VeloScaler
VeloScaler by CodeFN42 is a free MIDI effect plugin for Windows that lets you adjust and scale MIDI note velocities with up to 5 customizable bands.
VST2MIDI effects
Instruments, effects, and hidden gems
Free VST plugins
Discover free Windows audio plugins by sound, instrument, effect, format, popularity, and the creative tools producers use together.
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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CodeFN42
NoteMapper
NoteMapper by CodeFN42 is a free MIDI utility plugin that maps incoming MIDI notes to up to three different notes across multiple channels, enabling complex triggering setups like multi-sampler drum patterns.
VST2MIDI tools
4drX
MidiKeySwitcher
MidiKeySwitcher lets you assign 2-key switches to select MIDI channels and send program and bank change messages directly from your MIDI keyboard, eliminating the need for a mouse when browsing plugin presets.
VST2Uncategorized
Austen
MIDI-Transformer
MIDI-Transformer by Austen lets you transform and reroute incoming MIDI signals within your VST chain on Windows 64-bit systems.
VST2MIDI tools
Robin Schmidt
MIDI Monitor
MIDI Monitor by Robin Schmidt displays incoming MIDI messages in real time. It is available as both instrument and effect plugin versions to ensure host compatibility.
VST2MIDI tools
ToneCarver
Wind Chimes
Wind Chimes by ToneCarver generates MIDI notes simulating wind chime strikes influenced by wind conditions, optionally sending control change messages for system energy.
VST2MIDI generators
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VeloScalerCodeFN42 · VST2
One clickNoteMapperCodeFN42 · VST2
One clickMidiKeySwitcher4drX · VST2
One clickMIDI-TransformerAusten · VST2
One clickMIDI MonitorRobin Schmidt · VST2
One clickWind ChimesToneCarver · VST2
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2140 plugins
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KBplugs
The Dodeca 258c
The Dodeca 258c by KBplugs is a free Buchla Dodeca inspired synthesizer emulation for Windows 32-bit VST2 hosts.
VST2Synths
KBplugs
System One E
System One E by KBplugs is a free Buchla modular inspired synthesizer emulation for Windows 32-bit.
VST2Synths
KBplugs
System One D
System One D by KBplugs is a free Buchla modular-inspired synthesizer VST2 plugin for Windows x86, offering unique modular synthesis without presets.
VST2Synths
KX77FREE
SE PolyMod KX
SE PolyMod KX by KX77FREE is a vintage polyphonic semi-modular synthesizer featuring up to 4 voices, oversampling up to 4x, stereo routing, and a 12x12 modulation matrix with 8 KXMOD modulations.
VST2Synths
TheWaveWarden
Odin
Odin is a 12 voice polyphonic wavetable subtractive semi-modular synthesizer featuring aliasing-preventive oscillators and virtual analog Moog-ladder and Oberheim filter emulations.
VST2Synths
MVX Synths
MVM
MVM by MVX Synths is a free multioscillator synthesizer with extensive routing and modulation capabilities designed for complex sound design on Windows 32-bit.
VST2Synths
Full Bucket Music
ModulAir
ModulAir by Full Bucket Music is a free polyphonic modular synthesizer offering up to 18 modules per patch and 64 voices of polyphony for rich sound design.
VST2Synths
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
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
The free-plugin pulseUpdated Oct 7, 2026
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