Free Filter Plugins & Apps

Frohmage

Frohmage is a free filter VST, Audio Unit, RTAS, DirectX plugin developed by Ohm Force. Compatible OS(s): Windows, macOS.

Frohmage is a multi-band resonant filter. It can offer some unique sounds, from slow and deep filter sweeps to the most savage tones with high resonance setting and heavy distortion.

Highly resonant low-pass filter.

Cutoff frequency unit selection : Hz or musical note.

Up to 15 additional bands, harmonically distributed.

Delay on each band for unique phaser effects.

Distortion stage, with two routing schemes.

Very fine MIDI control (PRN and NPRN sent or recorded by Frohmage are 14-bit accurate).

Low CPU load.

http://www.ohmforce.com/

Fragmental

Fragmental is a free multi fx and delay and echo and filter VST plugin developed by ndc Plugs. Compatible OS(s): Windows.

Fragmental is a complex multi-fx plugin incorporating a delay, granulator, three phase vocoder effects, a reversinator, and three types of modulation source. It incorporates a very flexible routing scheme capable of serial and parallel effects routings, and a new kind of modulation routing based on a kind of pie chart representation.

This plugin was developed in conjunction with KVR member, shamann.

The code for the phase vocoder effects comes from the PVOC plugins (Trans, Exag, Accum) . It should be noted that the presence of the phase vocoder effects mean the plugin has a constant delay of 7680 samples, although PDC-capable hosts will compensate for this.

http://www.niallmoody.com/ndcplugs

Formantbank

Formantbank is a free filter VST plugin developed by WOK. Compatible OS(s): Windows.

Formantbank features 12 bandpass filters, each adjustable in volume. The filter frequencies can be shifted and resonance can be applied.

http://www.wokwave.com

Forbice

Forbice is a free filter VST plugin developed by Acrobatics. Compatible OS(s): Windows.

A stereo filtering module providing maximum tools for audio cutting and mangling, whether they are drumloops, voice or instrument recordings or audio samples.

Two channels -12/-24/-36/-48 dB LowPass filter is driven dynamically through a fast AHR envelope, keytracked and modulated by a synchronized/free running full-featured LFO.

Also available are high-pass resonant filtering, bitcrushing and distortion stages.

The effect unit features full VST & MIDI control and a flexible routing of signal with additional balance, mix and dynamics fine-tune processing.

http://www.blank-media.it/acrobatics/

Fnequalizer

Fnequalizer is a free eq and filter VST plugin developed by Oceanturtle music. Compatible OS(s): Windows.

Fnequalizer is a 7-band Paragraphic equalizer intended to have a clean and transparent sound character. It features a user interface that is designed for quick easy and versatile mixing work.

5 filter types, bell, high shelf and low shelf, low pass and high pass for bass/treble roll off.

Accurate curve UI with a dB axis zoom feature for extra precision.

A special “curve scale” feature which amplifies the overall frequency response of all bands.

4 output modes – stereo, mono or left/right channel selection.

10 presets, default preset bank is customizable.

CPU-friendly 64 bit SSE processing.

Three different skins, in addition to the default red theme, a blue and a clean minimal variant is available.

Possibility for custom skin design.

http://www.oceanturtlemusic.com

Flower Child Filter

Flower Child Filter is a free filter VST, Audio Unit plugin developed by Soundemote. Compatible OS(s): Windows 64b, macOS.

Flower Child Filter is the first in an upcoming series of boutique analog-style filters (See FMD). Flower Child is aptly named for its goal to have a clean and resonant sound. There is also a switch for an aggressive growling version that is sure to cater to your more destructive side:

Oscilloscope in center of interface to see realtime how the filter is affecting your signal.

Self-oscillating resonance.

Warm tube-like overdrive by setting resonance to 0 in clean mode.

Clean/Aggressive mode where aggressive mode responds well to loud inputs, creating pleasing warmth, overdrive, and distortion.

2 Envelope followers, one for filter, the other for amplitude.

{See video at top of page}

http://www.soundemote.com

FlexFilterbank2

FlexFilterbank2 is a free filter VST plugin developed by WOK. Compatible OS(s): Windows.

FlexFilterbank2 is a analogue modeled filterbank with 8 adjustable band-pass filters. From subtle changes to strong vocoder-like effects, FlexFilterbank2 can be used in any style of music. Its analog sound character can also become dirty when overdriving the input stage.

http://www.wokwave.com

FiltSeq

FiltSeq is a free filter VST plugin developed by Sonic Assault. Compatible OS(s): Windows.

FiltSeq is a 16-step 4-sequencer stereo/mono state variable filter with independent timing for frequency, resonance and left/right channels.

http://homepage.ntlworld.com/jez.price/

FilterGrizzly2

FilterGrizzly2 is a free filter and saturation VST plugin developed by CFA-Sound. Compatible OS(s): Windows.

Finally, after some years in the dark the all-new FilterGrizzly 2 is available as free filter VST plugin. Rich on character and warmth, the completely overworked filter module is loaded with a tube-based filter drive unit for saturation, followed by an analog modelled 4-pole lowpass and 2-pole highpass filter with a passive controlled feedback circuit. The FilterGrizzly2 gives you nearly one-to-one the filter of the upcoming MonoGrizzly 2 synthesizer, all informations about that you can find here: blog/coming-soon-monogrizzly2

Features:

2x oversampling and anti-aliasing algorithm.

tube-based filter drive unit.

classic analog ladder filter design.

4-pole lowpass and 2-pole highpass filter.

passive controlled feedback circuit.

new GUI with 2 different skins.

{See video at top of page}

All samples in the demo are taken from the SOR Minimal Techno Revolution Vol.3 sample pack.

Platforms:

VST 2.3 (32-bit) for Windows.

Note: FilterGrizzly 2 could maybe work via jBridge in a 64-bit DAW, but we don’t guarantee that.

Requirements:

Win32 compatible OS with SSE2-supporting CPU (or higher).

https://www.cfa-sound.com/

FilterCrusher

FilterCrusher is a free filter and saturation VST, Audio Unit plugin developed by Bedroom Producers Blog. Compatible OS(s): Windows 64b, macOS.

FilterCrusher is a dual tube filter effect for mixing and sound design purposes. The plugin features a pair of resonant filters and a modeled tube preamp circuit for subtle tube saturation. Additional “crush” mode boosts the input gain and results in audible tube-style distortion.

Features:

Adjustable 12 dB high and low pass resonant filters.

Modeled tube circuit.

Subtle and “crush” modes.

Zero latency.

Optimized for low CPU usage.

{See video at top of page}

https://bedroomproducersblog.com/