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THE AUDIO MAGAZINE / RESOURCES

Audio Units (AU) – Free Music Software & Plug-ins

Find permanently free recording tools, instruments, effects and audio utilities for desktop, mobile and the browser. Each listing explains its purpose, compatibility and important free-edition restrictions, with links to the official source.

These are researched directory entries, not hands-on reviews. Optional purchases, account requirements and limited editions are identified on product pages. Format availability can differ by operating system.

201 listings

Flux Mini 2

Caelum Audio

Flux Mini 2 applies drawn modulation shapes to parameters such as level and filtering.

macOSWindowsCompressors & Dynamics
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Fracture

Glitchmachines

Fracture is a buffer-oriented multi-effect for glitch textures and unusual rhythmic manipulation.

macOSWindowsSound Design
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Free Suite

Venn Audio

Free Suite collects utility and processing tools for everyday audio work.

LinuxmacOSWindowsCompressors & DynamicsEqualizersRecording Utilities
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FreeAMP

Klevgrand

FreeAMP adds a simplified selection of analog-style coloration from Klevgrand's processing approach.

macOSWindowsDistortion & Saturation
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Frequency Shifter

Full Bucket Music

Full Bucket's Frequency Shifter applies a fixed frequency offset rather than a conventional musical pitch ratio.

macOSWindowsModulation EffectsSound Design
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Frontier

D16 Group

Frontier is a limiter with a character-oriented design for creative signal control.

macOSWindowsDistortion & Saturation
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FuzzPlus 3

Audio Damage

FuzzPlus 3 is a fuzz-distortion effect from Audio Damage's free and legacy collection.

macOSWindowsDistortion & Saturation
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Glitch 2

Illformed

Glitch 2 is a sequenced multi-effect for rhythmic transformations, stutters and rearranged audio.

LinuxmacOSWindowsDelaysDistortion & SaturationModulation EffectsSound Design
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GODLIKE STEREO

Godlike Sounds

GODLIKE STEREO divides width control into bass, mid and treble regions.

macOSWindowsMetering & AnalysisSpatial & Surround Audio
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Graillon Free

Auburn Sounds

Graillon Free provides vocal pitch processing in a reduced edition of the developer’s voice tool.

LinuxmacOSWindowsModulation EffectsSound Design
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Greed Smasher

Mercuriall Audio

Greed Smasher is a free overdrive-pedal model intended for use in a larger guitar chain.

macOSWindowsGuitar & Bass
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GRNi Lite

FRCTL Audio

GRNi Lite is a permanently free granular instrument that turns one loaded sample into clouds of grains played from MIDI.

LinuxmacOSWindowsSamplersSound Design
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GSatPlus

TBProAudio

GSatPlus is a saturation processor developed with a console-style approach to harmonic shaping.

macOSWindowsDistortion & Saturation
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Guitar Rig 7 Player

Native Instruments

Guitar Rig 7 Player is a permanently free selection of amplifier and effects tools from the Guitar Rig environment.

macOSWindowsGuitar & Bass
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Helm

Matt Tytel

Helm is a polyphonic synthesizer with a visual modulation system, step sequencing and integrated effects.

LinuxmacOSWindowsSynthesizers
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HOFA 4U BlindTest

HOFA

BlindTest supports listening comparisons while reducing the influence of knowing which source is playing.

macOSWindowsMetering & AnalysisRecording Utilities
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HY-Delay4 Free

HY-Plugins

HY-Delay4 Free is a restricted delay edition intended for a focused selection of echo-processing tasks.

macOSWindowsDelays
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HYLL Pressure

Hell Yes Loop Lab

HYLL Pressure combines soft clipping, saturation, density and a ceiling control, with a blend for parallel treatment.

macOSWindowsCompressors & DynamicsDistortion & SaturationMastering
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Hysteresis

Glitchmachines

Hysteresis combines delay with modulation and glitch-oriented processing.

macOSWindowsSound Design
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Insta-Gate

Parish Audio

Insta-Gate is a focused noise gate with one threshold control, aimed particularly at high-gain guitar recordings.

macOSWindowsAudio RestorationCompressors & DynamicsGuitar & Bass
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ISOL8

TBProAudio

ISOL8 divides a signal into frequency regions for monitoring and inspection.

macOSWindowsMetering & Analysis
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IVGI

Klanghelm

IVGI provides saturation with control over drive, asymmetry and frequency-dependent behavior.

macOSWindowsDistortion & Saturation
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Availability, licensing and system requirements can change. Verification refers to official documentation and download availability, not installation or hands-on testing. Check the developer's current terms before installing.

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