IndiePluginsInstruments, effects, and hidden gems
Browse 69 reviewed free filters plugins for Windows, with compatibility, formats, interface previews, and installation details.
Filtered catalog
Every reviewed plugin matching the current filters.
Vesta by B Serrano is a free multimode filter plugin for Windows featuring three customizable filtering layers with individual curve responses, multiple routing options, and modulation sources including LFO, step controller, and envelope follower.
Unifilter by SNFK Music is a lightweight filter and distortion plugin offering eight filter types and upward harmonic saturation with an intuitive interface.
Transformant by igorski is a multichannel formant filter effect designed to create gritty, honking, and nasal textures rather than smooth choirs. It allows sound shaping across the stereo field with separate oscillators and vowel controls for distinctive tonal effects.
T-Rex Cut & Rez Mini by Max Project is a free multi-mode filter plugin for Windows featuring seven different filter types in VST2 format.
SynthTrack by 2Rule is a free filter effect plugin for Windows that applies ADSR and LFO to synths, ideal for creating rhythmic gated pad sounds.
Synchronize by Fabric 70 is a high-performance IIR filter plugin with envelope and LFO modulation, triggered by the input signal for dynamic control.
Sweepie by Odosynths is a simple VST2 filter effect for Windows that rotates two filters to shape your sound.
StepFilterDC2014 by Max Brezhestovski is a free VST2 step filter plugin for 32-bit Windows systems.
Stepcomb by Oli Larkin is a free stereo comb filter VST effect featuring pitch control via a step sequencer for dynamic filtering.
SF-1 by Samsara Cycle Audio is a straightforward low pass and high pass filter with filter select, level controls, MIDI learn, and 32 patch spaces.
Rez3 by Z3 Audiolabs is a free resonator plugin featuring a multi-LFO with six waveforms and an envelope follower for dynamic modulation of tone, feedback, filter cutoff, and resonance.
Resonator by SyncerSoft is a resonance and morph filter effect designed to create clear, penetrating sounds favored in live performances across electronic music genres.
Philteroid by Phuturetone is a dual filter effect tailored for rhythmic sounds like drums, bass, synth, and guitar. It offers FM, AM, and saturation features to add unique character and texture.
OT FUNimator is a pattern-based LFO plugin offering rhythmic filter and gain modulation with 13 filter modes, MIDI-triggered patterns, and automation controls to add dynamic motion to your audio.
NTQ by Samsara Cycle Audio is a free 2-stage notch filter VST2 plugin for Windows. It covers 60Hz to 4kHz with bandwidth and mix controls.
NorthPole by Prosoniq is a free resonant filter plugin featuring 24dB/oct low pass and band pass modes, adjustable cutoff and resonance, distortion, delay, and an envelope follower with customizable sensitivity and attack/release times.
Nibiru 3 by B Serrano is a free parallel filters effect plugin featuring four multi-mode filters, extensive modulation options, and advanced envelope control.
NF2 by Samsara Cycle Audio is a free notch filter plugin inspired by the Ibanez MSP 1000 notch filter section. Designed for Windows 32-bit systems, it offers precise frequency attenuation in VST2 format.
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