Free Audio Plugins VST, AU, RTAS

ReFine

ReFine is a free enhancer and exciter VST, VST3, Audio Unit plugin developed by lkjb. Compatible OS(s): Windows 64b, macOS.

ReFine is a plugin that allows to add a final polishing to your tracks, busses and masters. It extracts psycho-acoustic parameters from the source and thus allows to add warmth, space and punch to your mixes. This is done level dependent and rather subtle; you probably won’t be able to create heavy distortion effects with this plugin.

Version 1.1.0 won’t be compatible with earlier versions but 1.1.0 can be installed alongside previous versions if one of the plugin is renamed. Since the amount of controls isn’t too high migrating shouldn’t be a problem.

The plugin is now open source.

The manual is available here.

Changelog:

1.2.0: JUCE update.

1.1.0: moved plugin to JUCE, added AU format, added x2 toggle.

1.0.6: fixed crash in mono instances.

1.0.5: fixed CPU issue in Cubase during silence.

1.0.3: added support for older VST hosts on Windows, OS X 10.6 support.

1.0.2: fixed denormalisation bug.

1.0.1: fixed high CPU bug (appeared when silence was put in after a signal).

https://lkjbdsp.wordpress.com/

Redu(p)cer

Redu(p)cer is a free bit crusher VST plugin developed by Morfiki. Compatible OS(s): Windows.

Redu(p)cer is a versatile bit-reducer and decimator type plug-in with unique morphing abilities plus additional filters and stereo spread functionality.

Features:

True stereo processing.

High pass filter with stereo spread.

Quantizer.

Low pass filter with stereo spread.

Samplerater – sample-rate reducer with stereo spread.

All parameters controlled by Morfiki Preset System.

Reset spread knobs and volume knob by double-clicking on knob’s name.

https://morfiki.blogspot.com/

Red Skull Distortion

Red Skull Distortion is a free overdrive and saturation VST, Audio Unit plugin developed by audiorammer. Compatible OS(s): Windows 64b, macOS.

Red Skull Distortion is an aggressive high-gain distortion pedal simulator with chunky metal tones for playing Nu Metal, Grind Core, Hard Core, Trash Metal or any genre that requires crushing sound. The tone section gives you complete control over Bass, Midrange, and Treble to get the ultimate chunk for your rig.

Features:

Stomp-box design.

Level control.

Distortion control.

3 band tone control.

Easy to use.

Low CPU usage.

http://www.audiorammer.com/

ReaXcomp

ReaXcomp is a free compressor VST plugin developed by Cockos. Compatible OS(s): Windows.

ReaXcomp features:

Unlimited band compressor.

Great metering per band.

Fantastic sounding filters.

Solo current band mode.

Tons of controls per band (ratio, threshold, knee, attack, release, makeup, program dependent release, feedback detector, RMS size)

Adjusting bands in graph is easy (modifiers to change ratio, gain, etc).

ReaXcomp is part of the free ReaPlugs VST FX Suite.

General features of ReaPlugs:

Support for Windows 98/ME/2K/XP/Vista, WINE.

Fast, usable UIs with good metering.

Low CPU and RAM use.

Highly configurable.

No copy protection.

No installation required.

Freely usable.

http://www.cockos.com/

RealSpread V2.0

RealSpread V2.0 is a free stereo imaging VST plugin developed by Truality Audio. Compatible OS(s): Windows.

RealSpread V.2 is a new version of RealSpread VST Plugin. It has a new engine and behaves differently. Its main function is to “Stereoize” a mono audio signal or widens a stereo one, without practically compromising mono compatibility.

Enjoy and feel free to share.

https://trualityaudio.weebly.com/

RealSpread

RealSpread is a free stereo imaging VST plugin developed by Truality Audio. Compatible OS(s): Windows.

RealSpread is an Audio Plugin (VST Windows) which “Stereoizes” a mono audio signal or widens a stereo one, without practically compromising mono compatibility. The spartan GUI conforms to my philosophy of simplicity in plugin design. RealSpread is more effective on single sources, for example a single (mono) Drums Overhead or Room microphone. Of course, you can experiment with stereo sources as well although I wouldn’t recommend using it on Groups/ Stems or Masters…except if you are aiming for that something else.

You can insert a Goniometer / Lissajous pattern plugin on the Master bus if you want to observe the effect…

Download the dll file here and put it in your VST Folder.

Enjoy and feel free to share.

https://trualityaudio.weebly.com/

ReaJS

ReaJS is a free multi fx and echo and delay and compressor and limiter and distortion VST plugin developed by Cockos. Compatible OS(s): Windows.

ReaJS is a real-time user-editable effect processor.

Features:

64-bit internal audio processing, MIDI support, full PDC support, multichannel I/O support, graphics display support.

Hundreds of included effects, including: delays, compressors, limiters, convolution, distortion, spectral noise editors, analyzers, loop samplers, creative effects.

Create new effects from scratch, or modify existing effects to meet your needs.

JS editor and debugger included, opens automatically when you edit a plug-in.

http://www.cockos.com/

ReaGate

ReaGate is a free gate VST plugin developed by Cockos. Compatible OS(s): Windows.

ReaGate features:

Ultra-configurable gate.

Sidechain filters, sidechain input.

Lookahead for pre-open.

Hold control.

Hysteresis control.

Variable RMS size.

Can send MIDI events on gate open/close.

Wet/dry mix, noise mix (can add noise when gate is open).

ReaGate is part of the free ReaPlugs VST FX Suite.

General features of ReaPlugs:

Support for Windows 98/ME/2K/XP/Vista, WINE.

Fast, usable UIs with good metering.

Low CPU and RAM use.

Highly configurable.

No copy protection.

No installation required.

Freely usable.

http://www.cockos.com/

ReaFir

ReaFir is a free multi fx and eq and compressor and gate VST plugin developed by Cockos. Compatible OS(s): Windows.

ReaFIR features:

FFT based dynamics processor (requires host plug-in delay compensation).

Supports FFT sizes of 128-32768.

Useful in/out frequency response display.

Supports defining response curves both using any number of points, or freehand mouse.

EQ – can be used as a linear phase mastering EQ, or as a super-effective surgical EQ.

Compressor – can compress at a fixed ratio with a per-band threshold.

Gate – can gate with per-band threshold.

Subtract – can build noise profiles and subtract noise from the signal.

ReaFIR is part of the free ReaPlugs VST FX Suite.

General features of ReaPlugs:

Support for Windows 98/ME/2K/XP/Vista, WINE.

Fast, usable UIs with good metering.

Low CPU and RAM use.

Highly configurable.

No copy protection.

No installation required.

Freely usable.

http://www.cockos.com/

ReaEQ

ReaEQ is a free equalizer VST plugin developed by Cockos. Compatible OS(s): Windows 64b.

ReaEQ features:

Unlimited band IIR based equalizer.

Support for any number of many types of filters (shelfs, bands, LPF, HPF, notch, bandpass, allpass).

Frequency response and phase response display.

Display of approximate note+octave for frequencies.

Per-band bypass control.

Full-view of graph optional for precise editing.

Mouse modifiers/mousewheel usable for editing bandwidth of points in graph.

ReaEQ is part of the free ReaPlugs VST FX Suite.

General features of ReaPlugs:

Support for Windows 98/ME/2K/XP/Vista, WINE.

Fast, usable UIs with good metering.

Low CPU and RAM use.

Highly configurable.

No copy protection.

No installation required.

Freely usable.

http://www.cockos.com/