Instruments, effects, and hidden gems

Free plugins: Filters

Browse 21 reviewed free filters plugins for Windows, with compatibility, formats, interface previews, and installation details.

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Filtered catalog

21 plugins

Every reviewed plugin matching the current filters.

BigSeq2 plugin interface
Audio Damage

BigSeq2

BigSeq2 by Audio Damage is a free multi-effect gate and sequencer featuring 12 sequencers controlling 10 effects across six effect blocks. It offers versatile sequencing from short gate patterns to evolving filter sweeps and frequency shifts.

VST2Multi-effects
Bionic Supa Delay plugin interface
Interruptor

Bionic Supa Delay

Bionic Supa Delay is a vintage tape delay effect featuring a filter, pitch shift, and reverb sections. It offers high and low frequency roll-off, tape wow and flutter, a smooth parameter for continuous delay time changes, freeze function, and a double delay time button.

VST2Delay
AnalogDelay plugin interface
Smartelectronix

AnalogDelay

AnalogDelay by Smartelectronix is a free VST delay effect with an integrated 2nd order lowpass filter and saturation, featuring tempo-synced delay-time control from 1/128 to 1 bar.

VST2Delay
Apad 4.5 plugin interface
Odosynths

Apad 4.5

Apad 4.5 by Odosynths is an analog pad synthesizer featuring three oscillators with detune and oscillator volume controls, flexible filter types, and several modulation options. It supports glide, mono mode, and includes over 100 presets.

VST2Synths
Analog Galaxy plugin interface
SyncerSoft

Analog Galaxy

Analog Galaxy by SyncerSoft is a vintage-style ROM synthesis synthesizer featuring four analog-style filters plus reverb and delay effects. Ideal for creating synthetic basses, leads, and pads.

VST2Synths
Adonis plugin interface
B Serrano

Adonis

Adonis by B Serrano is a free virtual analog, AM, and FM synthesizer for Windows featuring 4 waveforms per voice, 57 voice structures, multiple modulation envelopes, LFOs with host sync, dual filters, and built-in effects with an 8-step sequencer.

VST2Synths
200 C plugin interface
KBplugs

200 C

200 C by KBplugs is a free VST2 plugin for Windows featuring a comprehensive set of Buchla 200 modules including dual oscillators, envelope generators, filters, modulators, CV processors, and mixer channels.

VST2Synths
Basscruncher plugin interface
L-Day

Basscruncher

Basscruncher by L-Day is a monophonic synth bass line plugin featuring one oscillator with saw and pulse waveforms, a low-pass filter with resonance and drive modes, plus a 16-step filter sequencer inspired by the TB-303 style.

VST2Synths
Anti-Transpirant + Stepper 16 AT plugin interface
TubeOhm

Anti-Transpirant + Stepper 16 AT

Anti-Transpirant + Stepper 16 AT by TubeOhm is an analogue-sounding VSTi with 8x oversampling for clear high-frequency modulations, including PWM, filter FM, and ring modulation. The stepper plays monophonic sequences.

VST2Synths
acidrack plugin interface
acid.milch-und-honig

acidrack

acidrack by acid.milch-und-honig is a free small virtual analog synthesizer offering 6 voices with poly, legato, and mono modes. It features 2 VCOs with unison mode, a multimode filter, multiple envelopes, LFOs, an arpeggiator, and a patch randomizer.

VST2Synths
Basic plugin interface
Audio Damage

Basic

Basic by Audio Damage is a monophonic subtractive synthesizer featuring three alias-free wavetable oscillators and self-resonating filters capable of aggressive tones.

VST2Synths
A-Smalli plugin interface
Odosynths

A-Smalli

A-Smalli by Odosynths is a free 2 oscillator analog synthesizer for Windows. It features phase modulation with pitch and volume control, a versatile ADSR filter with multiple modes, glide, mono mode, and 32 presets.

VST2Synths
easy-drum X8 plugin interface
easytoolz

easy-drum X8

easy-drum X8 by easytoolz is a vintage analog style drum module featuring 12 fully synthesized instruments and extensive modulation options through 12 sequencers and various effects.

VST2Drums
easy-drum o4 SE 909 plugin interface
easytoolz

easy-drum o4 SE 909

easy-drum o4 SE 909 is a free 4-slot drumbox plugin emulating the TR-909, featuring 909 and 808 samples, effects like overdrive, flanger, bitcrusher, and a Moog filter with three LFOs modulating tune, cutoff, and pan across 32 patches.

VST2Drums
XXDrummodules plugin interface
Acquit Music

XXDrummodules

XXDrummodules by Acquit Music is a free collection of four drum modules for Windows. It includes hi-hats and cymbals with additive delay effects, a pure snare synth with dual oscillators and filtering, and simple percussion sounds.

VST2Drums
Abstractor plugin interface
miniSoftmusik

Abstractor

Abstractor by miniSoftmusik is a hybrid analog, FM, and AM synthesizer plugin with additive synthesis, XY-Pad, two-step sequencer, and analog-like filter.

VST2Synths
A1TriggerGate plugin interface
A1AUDIO.de

A1TriggerGate

A1TriggerGate is a sequenced gate effect plugin that chops incoming audio by syncing to your host tempo, ideal for electronic music production.

VST2Filters
Analog Rack Cleaner plugin interface
Nembrini Audio

Analog Rack Cleaner

Analog Rack Cleaner by Nembrini Audio is a free VST plugin designed to remove rumble and hiss using high pass and low pass filters in a single rack effect.

VST2Filters
Darksichord plugin interface
Electronik Sound Lab

Darksichord

Darksichord is a multi-sampled harpsichord with layered sound processing and effects, offering a darker tone with LPF filter and LFO modulation.

VST2Piano & keys
Foorius plugin interface
Smartelectronix

Foorius

Foorius by Smartelectronix is a free VST2 synthesizer plug-in for Windows combining FM, AM, VA, wave-sequencing, and noise oscillators with analog-modeled filters and built-in effects.

VST2Synths
Alpha-Ray plugin interface
TubeOhm

Alpha-Ray

Alpha-Ray by TubeOhm is a virtual analog synthesizer with two main oscillators, one sub-oscillator, and versatile filtering options. It offers 10-voice polyphony and multiple LFOs with host tempo sync for dynamic sound design.

VST2Synths
The free-plugin pulseUpdated Aug 17, 2026

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