"We can't quite believe that this is free!": 7 of the coolest free plugins we discovered this month

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(Image credit: Various)

Everybody loves a free plugin. From bedroom beatmakers to professional producers, few can resist the allure of a decent freebie, but with so many powerful pieces of free music software being released each month, it's hard to keep up.

That's why here at MusicRadar HQ, we keep a close eye on the music production world, taking note of the latest and greatest free plugins worthy of decorating your channel strips and clogging up your hard drives. Here, we present a round-up of this month's discoveries - scroll further down to check out what we've discovered in the past.

And while we're on the subject of free, don't forget to sign up to receive Waves' free Black Friday plugin on 29th November. It's usual a banger, so you don't want to sleep on this one.

1. Soundtoys PhaseMistress

Soundtoys PhaseMistress: Free Thru November 15! - YouTube Soundtoys PhaseMistress: Free Thru November 15! - YouTube
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Platforms: macOS/Windows | Formats: VST/VST3/AU/AAX | Download

When we ask producers and artists which plugin effects they use the most (and we do a lot of that) there's one brand that's named more often than any other: Soundtoys. These guys are the best in the business, so when they give away one of their plugins for free, it's an instant download. Don't delay, though, as this one's only available until November 15th.

PhaseMistress is an analogue-modelled phaser plugin that emulates a broad variety of classic hardware phasers from recording history, packing 69 different phasing styles into a single processor. Offering fine-grained control over its modelled phasing circuit, you're able to adjust its resonance, colour and intensity to dial in precisely the sound you're after.

Like most phasers, you're able to control its filter sweep through the use of an LFO, but PhaseMistress lets you draw in customized LFO curves, program in rhythmic phase shifts using the Rhythm mode, or use its envelope follower to shape the effect via an incoming audio signal.

2. Full Bucket Music Broken Mini

Free Synth - Broken Mini by Full Bucket Music (No Talking) - YouTube Free Synth - Broken Mini by Full Bucket Music (No Talking) - YouTube
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Platforms: macOS/Windows | Formats: VST/VST3/AU/CLAP/AAX | Download

Full Bucket Music has been releasing free plugin emulations of classic synths by the bucketload this year, and it looks like the developer has no plans to slow down, as the company shares an emulation of another vintage instrument: but this time, there's a twist.

We've all had a piece of gear break down on us from time to time, and while these kind of malfunctions are inconvenient and costly, they can - if we're lucky - also become a source of inspiration. Sometimes, it's these imperfections and idiosyncrasies that give our instruments the kind of unique character that keeps us coming back for more.

That's the philosophy behind Full Bucket Music's latest plugin, which emulates a broken Minimoog. No, we're not kidding. The synth offers much the same functionality and architecture as the vintage classic it's based on, but with a handful of quirks and flaws baked into its design. The joy of a broken instrument is in its unpredictability, so we'll let you discover those by yourselves...

3. Aaron Anderson Terrain

Terrain - YouTube Terrain - YouTube
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Platforms: macOS/Windows/Linux | Formats: VST3/AU | Download

Aaron Anderson's Terrain is an innovative synth plugin that makes use of an unconventional synthesis method known as wave terrain synthesis, wherein waveforms are generated by a 2D trajectory scanning over a modelled 3D surface; the motion of the trajectory over the surface, or terrain, creates evolving timbres, and the resulting timbre depends on both the shape and size of the trajectory as well as the shape of the terrain being scanned. Watch the video above for a thorough explanation.

The shape, size, position and motion of the trajectory can be controlled via the right-hand control panel, which also lets you dial in trajectory feedback; here, the trajectory's position feeds back on to itself, dramatically modifying its shape and creating some pretty aggressive tones, tamed by the plugin's spatial compressor. You'll also find a conventional ADSR envelope, which can be used to shape both the amplifier and the size of the trajectory, along with a basic filter. Terrain offers us a fantastic opportunity to experiment with a novel type of synthesis without spending a dime.

4. MeldaProduction MDelay

Platforms: macOS/Windows | Formats: VST/VST3/AU/AAX | Download

MeldaProduction's MFreeFXBundle is the biggest collection of free plugins available on the internet, bringing together 38 (yes, 38!) audio effects, mixing tools and utilities in a bundle that's become an essential download for any producers working on a tight budget - or just anyone that likes free stuff. And who doesn't?

The latest addition to the MFreeFXBundle is MDelay, a free delay plugin that looks like one of the best free plugins Melda have ever produced. Equipped with two delay lines, three delay modes and a host of fine-grained controls and extra features - including saturation, tape emulation, adjustable filter routing, mid/side processing and low- and high-pass filters - this is undoubtedly the most powerful free delay we've ever come across. To be honest, we can't quite believe this is free. 

5. Solid State Logic X-Orcism II: Voices from the Crypt

SSL X-Orcism II - YouTube SSL X-Orcism II - YouTube
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Platforms: macOS/Windows | Formats: VST/VST3/AU/AAX | Download

Released just in time for Halloween, SSL X-Orcism II: Voices from the Crypt is a vocal processor and multi-effects plugin aimed at conjuring spooky timbres and haunting soundscapes. Packing a delay, pitch-shifter, reverb and noise generator into a single processor, X-Orcism II can not only be used to transform your voice into "eerie and supernatural tones", but also to lend an unearthly touch to synths, drums, guitars, or frankly any audio source that needs spooking out.

X-Orcism's simple, easy-to-use interface is equipped with eight encoders; at the top-left we have Echoes and Crypt Size, for dialling in diabolical delays, and beneath that the aptly-named Ghoul and Wail controls can be used to control the pitch-shifter. Cranking up the Howl control will "evoke the haunting beauty of desolate landscapes" by activating the plugin's noise generator, while the Tombverb dial floods the signal in an atmospheric reverb fit for Tutankhamun.

6. EB-Blasphemy

My aphex-twin inspired plugin (Eb-Blasphemy) - YouTube My aphex-twin inspired plugin (Eb-Blasphemy) - YouTube
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Platforms: macOS/Windows | Formats: VST3/AU/CLAP/LV2 | Download

Bristol-based plugin developer Ewan Bristow has been turning out some fantastic free plugins this year, and this is one of his best. EB-Blasphemy is a generative, break-slicing sampler plugin with an array of sound-mangling effects built in, letting you transform drum breaks into glitchy, experimental patterns with a click of your mouse.

At the core of Blasphemy is its sample slicer, which, though Bristow describes it as an "Amen break chopper engine", can be used to slice and dice anything from vocal lines to synth riffs to instrumental loops. This runs through a resonator, spectral gate, bitcrusher, reverser and timestretcher, alongside two buttons that can be used to drop in "Woo!" and "Yeah!" samples lifted from the classic Think Break. Crank up the tempo, and it's instant breakcore.

EB-Blasphemy runs inside the free visual programming environment Plugdata, so you'll have to install that to run it.

7. EB-SpectraVeil

EB-SpectraVeil - A free frequency domain "warping" plugin - YouTube EB-SpectraVeil - A free frequency domain
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Platforms: macOS/Windows | Formats: VST3/AU/CLAP/LV2 | Download

Yet another excellent free plugin from Ewan Bristow, SpectraVeil is a spectral processor that delivers a unique take on frequency shifting called frequency stretching.

Rather than shift frequencies by a fixed amount, SpectraVeil warps them spectrally, by breaking audio down into thousands of frequency bands through FFT analysis, then reconstructing a warped version of the original signal in accordance with functions plotted on a graph in the plugin's user interface. Random functions can be generated by hitting the Random button, which can be synced to your project tempo to create some gnarly rhythmic effects. SpectraVeil also runs in Plugdata.


October

1. Blanketfort Audio Breakshaper

Breakshaper no talking sound demo - YouTube Breakshaper no talking sound demo - YouTube
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Platforms: macOS/Windows | Formats: VST3/AU | Download

Breakshaper is a multi-effects processor that promises to "get your drums where you want them with a minimum of fuss". Uniting tone-shaping, distortion and dynamics control in a single plugin, Breakshaper is - as its name suggests - well-suited to gifting drum breaks with character, drive and overall oomph, taming wayward transients while injecting samples with a welcome dose of grit and saturation.

The plugin's state-variable filter can be used to reign in low-end rumble, while the harmonics control will bring some high-frequency sheen to your hi-hats and cymbals, before the final result is glued together with a basic but effective compression module.

2. Modalics Plugin Buddy

New Free App & Plugin by Modalics | Plugin Buddy Tutorial - YouTube New Free App & Plugin by Modalics | Plugin Buddy Tutorial - YouTube
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Platforms: macOS/Windows | Formats: VST3/AU/AAX/Standalone | Download

Plugin Buddy is a plugin host and utility that does a lot of useful things. As a standalone app, it can host VST3 plugins, so you can use it to open up and play with instrument, effects and MIDI plugins outside of your DAW.

But, as Plugin Buddy is also available in AU and AAX formats - and hosts VST3 plugins - you can also use it to circumvent compatibility issues by opening up VST3 plugins in DAWs that don't support them, such as Pro Tools.

That's not all; Plugin Buddy is also equipped with some useful MIDI utilities, a two-oscillator synthesizer and two effects: a clipper and a low-pass filter.

3. Venus Theory auras:polyscape

I've Been Waiting YEARS For This... - YouTube I've Been Waiting YEARS For This... - YouTube
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Platforms: macOS/Windows | Formats: VST/VST3/AU/AAX/Standalone | Download

This month, YouTuber and musician Venus Theory announced the launch of a new series of free sample instruments built to run in the free Decent Sampler plugin, kicking off with a free library of samples of the Arturia Polybrute 12.

This collection of "deep and cinematic" sounds were sourced from Cameron's custom-built patches and recorded through analogue tube preamps to "capture the glorious and imperfect nature of analogue synthesis". This is a great opportunity to capture the sound of a $4k analogue synthesizer in your productions without spending a penny.

4. Wavea Flite

Platforms: macOS/Windows | Formats: VST3/AU | Download

Flite is a new synth and sampler plugin with free and paid-for tiers; the free version features an extensive sound library based on 2.5GB of samples from a long list of rare and classic synths from Yamaha, Roland, Oberheim, Sequential, Korg and more.

Flite's entire preset library can be accessed for free as part the plugin's free tier, while the plugin's paid-for tier will give you access to additional functionality such as in-depth parameter editing, preset saving, and sample importing.

5. UFX Reverb

Feature Overview | UFX REVERB - YouTube Feature Overview | UFX REVERB - YouTube
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Platforms: macOS/Windows | Formats: VST/VST3/AU/AAX | Download

Available for free until the end of October, UFX Reverb is a versatile reverb plugin with a full-featured spec sheet. The plugin's 10 reverb modes would be more than enough for a freebie, offering conventional Spring, Plate, Room and Hall options alongside reversed and gated reverbs, but in addition to this we have a wide array of tools for sound design that makes UFX far more than just a bread-and-butter 'verb.

The plugin's filter section offers a rather generous selection of 26 filter types, with presets that incorporate distortion, modulation and lo-fi effects, while the Finisher dial opens up an even more impressive smorgasbord of additional effects with glitchy rhythmic processors that slice, dice and mangle your reverbs into exciting new patterns.

6. Full Bucket Music DrumTraqs

full bucket

(Image credit: Full Bucket Music)

Platforms: macOS/Windows | Formats: VST/VST3/CLAP/AU/AAX | Download

Full Bucket Music has been delivering free plugin emulations of rare and classic synths by the bucketload this year, and it looks like the developer has no plans to slow down, as it unveils an emulation of the Sequential Circuits DrumTraks drum machine.

Full Bucket's recreation features the original factory samples found in DrumTraks, alongside some extra ROM samples. The plugin simulates the original Z80 chip found in the original drum machine, and - despite its lack of sequencer - recreates its endearingly clunky song and pattern-based workflow.

Tuning and levels for each of DrumTraq's fourteen sounds can also be adjusted individually, while each of its six channels can also be tweaked in volume or panned to create stereo drum patterns. It's also got MIDI CC support, along with SysEx and MIDI import and export, in case you want to load in patterns and patches from the original hardware.

7. Nebuphonic Nebudestru Destruction Unit

nebudestru plugin

(Image credit: Nebuphonic)

Platforms: macOS/Windows | Formats: VST3/AU | Download

If you like distortion (and who doesn't, really?) then Nebuphonic's Nebudestru Destruction Unit (try saying that five times in a row) is the free plugin for you, delivering a comprehensive selection of destructive processors alongside a variety of tone-shaping controls to tailor its sonic degradation to suit any mix or application.

Nebudestru offers up seven distortion types, including emulations of the distortion introduced by tape machines and tube amplifiers, alongside bitcrushing and saturation. You'll also find an EQ with 5 clarity-degrading preset curves, a vinyl-style noise generator, low and high-pass filters and not one or two, but three LFOs for modulating the plugin's parameters. All in all, a remarkably healthy set of options for a free plugin.

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Matt Mullen
Tech Editor

I'm MusicRadar's Tech Editor, working across everything from product news and gear-focused features to artist interviews and tech tutorials. I love electronic music and I'm perpetually fascinated by the tools we use to make it. When I'm not behind my laptop keyboard, you'll probably find me behind a MIDI keyboard, carefully crafting the beginnings of another project that I'll ultimately abandon to the creative graveyard that is my overstuffed hard drive.