GRFX⁠.

Turn any sound into a living texture.

A real-time granular effect. Feed it anything and it shatters the signal into clouds of grains you can reshape, repitch, reverse and scatter — then bloom into space with built-in effects.

Buy GRFX Try for free€49 one-time · or rent-to-own
64
Simultaneous grains
8s
Buffer · or synced
8
FX engines · 2 slots
60
Factory presets
GRFX granular effect plugin interface
[ OVERVIEW ]

The short version.

Feed GRFX any sound and it breaks it into clouds of grains you can reshape, repitch, reverse and scatter across the stereo field — from lush evolving pads to broken, glitching machines⁠.

Blend three pitches like an instrument, set everything in motion with the LFOs, then run the result through built-in delay, reverb and two switchable effect racks. GRFX turns the audio you already have into something entirely new.

CategoryReal-time granular audio effect
PlatformsmacOS · Windows · iOS
FormatsVST · VST3 · AU · AUv3 · Standalone (iOS)
Presets60 factory presets
Best forProducers & sound designers
01 · What it is

An effect⁠, not an instrument.

GRFX shatters any incoming signal — a synth, vocal, guitar, drum loop or full mix — into clouds of tiny grains. You put it on a sound, not play it from scratch.

02 · What it does

Repitch, respace, reshape⁠.

Sculpt, scatter and re-pitch grains into textures, pads, rhythms and atmospheres — then bloom the result into space with built-in effects.

03 · Why it's different

Granular meets modular multi-FX⁠.

An interactive pitch triangle, drag-and-drop modulation, two switchable effect racks and probabilistic routing — all under one hands-on, intuitive interface.

[ TRAILER ]

GRFX, in motion⁠.

[ ENGINE ]

The pieces that make grains bloom⁠.

A deep granular engine, modulation,
and a probabilistic multi-FX rack.
02 · Built-in space

Grains, then atmosphere⁠.

A dedicated delay — free or synced, with filtered feedback and stereo width — and a reverb with shape, decay, pre-delay and input high-pass. Two independent sends, no extra plugins.

delayreverbdual sends
03 · Buffer freeze

Hold a moment, granulate it forever⁠.

Freeze the incoming audio and keep granulating the frozen instant — perfect for live performance and infinite, evolving textures. Add reverse-grain probability for glitch and stutter.

freezereverse grainsfeedback
04 · Two effect racks

Eight engines, two slots⁠, probabilistic routing.

Two switchable effect slots — Filter, Distortion, Delay, 2× Peak EQ, Chorus, Phaser, Bitcrusher and Reverb — chained or parallel. Probability-based routing decides which grains travel which chain, no automation required.

8 engines2 slotschance routingsend / return
ROUTECHANCE 68%CHAIN·CHANCE 32%MASTER
CHAINFILTERBITCRUSHER
SENDDELAY · 1/8DREVERB · HALLPARALLEL
05 · Modulation

Everything can move⁠.

Four self-modulating LFOs with six waveforms — sine, square, saw, triangle, sample & hold and filtered S&H, free or tempo-synced. Drag a waveform onto almost any knob to make it breathe. Cross-modulate one LFO with another.

4 LFOs6 waveformsdrag-and-dropcross-mod
06 · Feedback loop

Bloom into endless ambience⁠.

Feed the output back into the buffer to build blooming, self-evolving washes. Tempo-sync everywhere: grain size, frequency, offset, delay time and LFO rate all lock to your project.

feedbacktempo syncone-click randomize
[ TRIANGLE ]

Pitch you play like an instrument.

Drag the handle, hear it blend.
From one note to a full chord — instantly.

The Harmonic Triangle⁠.

A unique, hands-on way to mix three pitches. Each vertex holds a quantized or continuous −12 / +12 pitch; the handle weights them by distance. It's the fastest way to turn a single tone into a harmony.

DragBlend three independent pitch pools in real time — the handle decides each grain's pitch by proximity.
ChordsLoad any of 30+ built-in chords to instantly harmonize a single mono source into shimmering octaves and fifths.
QuantizeSnap to semitones for tight, musical transposition — or run free and continuous for microtonal drift.
Fixed / quantizedLock the handle for arpeggios, sweep it for shimmer, or modulate it for slow-moving chord storms.
The handle weights three pitch pools by distance — grains follow the nearest vertex
[ MODULATION ]

Intuitive modulation⁠.

No modulation matrix.
Just drag, drop, and dial it in.
Drag a modulator's waveform onto a parameter to assign it

Drag, drop, done⁠.

GRFX assigns modulation by drag-and-drop — no modulation matrix required. Drag a modulator's waveform onto the parameter you want to move, then set the amount directly on the parameter itself.

With four LFOs and almost every visible parameter open to modulation, you won't run out of options. You can even cross-modulate between LFOs by dragging one unit's waveform onto another — and a dedicated modulation panel gives you a global view to edit or remove every assignment.

Drag to assignDrop a modulator's waveform straight onto the parameter you want to move — no matrix, no menus.
Amount in placeDial the modulation depth directly on the parameter itself.
Cross-modDrag one LFO's waveform onto another LFO to modulate the modulator.
Mod panelA dedicated panel lists every assignment to edit or remove at a glance.
[ EFFECTS ]

A powerful effect chain⁠.

Two multi-FX units, plus
send/return delay & reverb.

Shape the space⁠.

GRFX runs two chained multi-effect units — Filter, Distortion, Delay, two Peak EQs, Chorus, Phaser, Bitcrusher and Reverb — so you can sculpt every grain before it ever reaches the mix.

Alongside them, dedicated Delay and Reverb work in send/return mode, chained or in parallel, giving you flexible signal routing and full control over the sonic space of every signal route.

Two FX unitsTwo chained multi-effect units: Filter, Distortion, Delay, dual Peak EQ, Chorus, Phaser, Bitcrusher and Reverb.
Send / returnDedicated Delay and Reverb on a send/return bus — chained or fully parallel.
Flexible routingSend each signal through the chain or the returns for complete control over the sonic space.
Per-grain spaceShape every grain's tone and space before it ever reaches the mix.
[ AUDIO DEMOS ]

Hearing is believing⁠.

What it sounds like in the wild⁠.

GRFX turns simple sounds into textures, glitches, ambiences, drones and peculiar effects. Listen for yourself.

Best on headphones, or anything that reproduces stereo honestly.

[ FEATURES ]

The features that stand out⁠.

01Up to 64 simultaneous grains from the granular engineEngine
02Circular buffer up to 8 seconds — free or tempo-syncedBuffer
03Grain Size 20–1000 ms · adjustable trigger Frequency & OffsetGrain
04Spray (position), Warp (timing jitter) and Stereo SprayGrain
05Reverse-grain probability · Window/Shape envelope & tiltGrain
06Interactive 3-point pitch triangle · 30+ built-in chordsPitch
07Pitch quantize to semitones, or free continuous modePitch
08Buffer Freeze — hold the input and keep granulatingBuffer
09Feedback loop · dual A / B signal pathsRouting
10Built-in stereo Delay and parametric ReverbSpace
112 effect slots × 8 engines — Filter, Distortion, Delay, EQ, Chorus, Phaser, Bitcrush, ReverbFX
124 LFOs · 6 waveforms · free or tempo-synced · drag-and-drop assignMod
13Full MIDI CC automation and MIDI clock syncMIDI
14VST, VST3, AU & AUv3 · macOS, Windows & iOS · Standalone on iOSFormat
[ PRESS ]

What the press is saying⁠.

Three takes from people who
review plugins for a living.
We Rave You

The plugin features a sleek black-and-white design with turquoise textures. At its core is a nebula-like visual, referred to by Imaginando as the Harmonic Triangle. It looks both stunning and…

Imaginando GRFX Might Be the Most Fun Granular Plugin You’ll…Read review →
Gearnews

Imaginando’s GRFX proves to be a sophisticated tool for modern sound design, allowing you as a granular sound designer to create many creative sounds and soundscapes.

Granular Meets Modular Multi-FX in a Cool GUIRead review →
[ TESTIMONIALS ]

What players are saying.

App Store4.84★★★★★32 ratings
★★★★
"The graphics have been reworked and a random function added. Great! If it were possible to add a button to mute the input during output, so that only the granular result is audible, I'd be very happy. And how about a…"
Flíva · App Store
★★★★★
"It's really good, even extremely well-made as a plugin, even if it consumes a lot of CPU. Thank you, it's a good product!"
bugzzyM60 · App Store
★★★★
"The graphics have been reworked and a random function added. Great! If it were possible to add a button to mute the input during output, so that only the granular result is heard, I'd be happy."
Flíva · App Store
★★★★
"Unfortunately, some buttons are quite inconspicuous and small. It's a shame GRFX doesn't have a randomizer function for the scale that could be activated."
Flíva · App Store
★★★★
"Unfortunately, some buttons are quite inconspicuous and small. It's a shame GRFX doesn't have a randomizer function."
Flíva · App Store
★★★★★
"Wowzer. It does this… Whoh. It does that as well. Hang on. You mean if I do this it’ll do that as well? Oh my. It does. So, does that mean if I do this…? Oh my days. It’s been ten minutes and I am hearing things I’ve…"
iruddo · App Store
★★★★★
"I’ve got most if this developer’s apps. Mostly because I like how they find creative ways of doing something that’s been done before, but in a unique way. That said, I already have several granular effects apps and…"
skiphunt · App Store
★★★★★
"What can I say 🤷‍♂️ it’s good….just get it"
psychoghost1 · App Store
★★★★★
"There are many granular effects available, all different, from the simplest to the most complex. This one stands out because it's designed primarily for musicality without neglecting enormous possibilities for…"
powernovax · App Store
Pat Pardy of Evil Nine, in a black cap, resting his face in one hand.
We're massive fans of granular effects, and GRFX has quickly become one of our favorites. The Harmonic Triangle and cross-modulating LFOs are great unique features that make it stand out.
Pat Pardy · Evil Nine / STI77 — Producer & Sound Designer
[ Pricing ]

Own it your way⁠.

Rent it monthly or buy it once.
Mobile apps are available separately on the app stores.
[ Rent-to-own ]

Pay monthly

€7.80/mothen yours forever
  • Flexible monthly payments
  • Pause or cancel anytime
  • Same licence as buying once
  • Yours to keep after the final payment
How rent-to-own works
[ Bundle ]

Get the full bundle

€99one-time · desktop
  • Best value — save vs buying separately
  • Desktop licences only
  • DLYM + K7D + GRFX desktop licences
● UNLIMITED-TIME DEMO · DESKTOPTry every feature for as long as you like on macOS and Windows — no card required. Until it's licensed, a short noise burst plays every 60 seconds, saving is disabled, and a DAW can't recall the plugin's patch state when you reopen a project. The iOS app is a paid App Store download and has no demo.
Download demo
[ EDUCATION ]

Students & teachers, 50% off⁠.

Learning is in our ethos. Verified students and educators get 50% off GRFX — same features and updates. Verify your status, get the code, install.

[ MOBILE ]

Also on mobile⁠.

GRFX runs on iPhone and iPad as an AUv3 plugin and Standalone app — a separate paid App Store purchase.

App Store
[ REQUIREMENTS ]

Will it run on your rig?

macOS 12 or higher

VST3, VST & AU plugin formats. Apple Silicon native. ~230 MB download.

Windows 10 or higher

64-bit VST / VST3 host. ~44 MB download.

iOS 17.0 or higher

iPhone & iPad. AUv3 plugin & Standalone. ~117 MB download.

[ FAQ ]

Quick answers⁠.

The questions we get asked most about GRFX.

What is GRFX?

+
GRFX is a real-time granular effects plugin that shatters incoming audio into grains and reassembles it into evolving textures, pads and atmospheres.

Which platforms and formats does GRFX support?

+
GRFX runs on macOS, Windows and iOS as a VST, VST3, AU and AUv3 plugin plus standalone (iOS only).

What is the Harmonic Triangle?

+
It's GRFX's central control: drag inside the triangle to morph the grain pitch between fixed, quantized and freely modulated states, from subtle shimmer to chord clouds.

Does GRFX work in my DAW?

+
Yes. GRFX loads as a VST/VST3/AU/AUv3 effect in any compatible host, or runs standalone (iOS only).

How much is GRFX, and can I try it?

+
GRFX is a one-time purchase with a rent-to-own option, and the desktop version has a free unlimited-time demo — see current pricing above. The iOS app is a separate paid App Store download with no demo.