Best Free Filter Plugins For PC & Mac (2018)!

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Many musicians have a limited budget to buy new instruments or effects. Above all, many of them use their budget to buy hardware and less about software. One of the effects I personally love on hardware as well as software are beside reverb / delay/distortion but also filters. Good sounding plugins can be expensive but there are several that cost you nothing.

I consider only free filter plugins that are:

  • for PC & Mac at the same time
  • free for everyone
  • no time restriction
  • 64-bit compatible

Best Free Filter Plugins

HY-Plugins HY-Filter 3 Free

The free version of the HY-Plugins HY-Filter 3 offers two filter modes (state-variable, reso) but without modulation or FX units.

HY-Plugins HY-Filter 3 Free filter plugin

It’s available for free for Windows & Mac (32-/64-bit VST/AU)

Available here: HY-Plugins

Ohm Force Frohmage

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.

Ohm Force Frohmage Free Filter plugin


  • 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.

Available here: Ohm Force

BPD Audio Assault FilterCrusher

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.

Audio Assault Filtercrusher free filter plugin


  • Adjustable 12 dB high and low pass resonant filters.
  • Modeled tube circuit.
  • Subtle and “crush” modes.
  • Zero latency.
  • Optimized for low CPU usage.

Available here: FilterCrusher

Melda Production MBandPass

MBandPass is a filter plugin containing a high-pass and low-pass filters with slopes up to 120dB/oct. Using its 2 extremely versatile modulators it becomes a powerful filter, which can follow a simple LFO, react to input levels, MIDI, input pitch and much more.

Melda Production MBandPass

Available here: MBandPass

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