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Building the future of sound, with you.

© 2026 Maru · private early access

Modules

Create a module

Browse every public module, from finished instruments and effects to the reusable audio and MIDI building blocks behind them.

Several of these are already wired together as fixed, playable rigs — browse the racks.

90 modules

Guitarabin

A fixed pedalboard for spacious guitar.

$49 preorderNo build recorded

Sparklelizer

A stereo delay that shows each repeat as it moves across the beat.

$39 preorderNo build recorded
Preview

Oscillo

A synth controlled through a visual tuning display.

No build recorded
Preview

Wavetable

Two oscillator banks with continuous frame morphing.

Preview

Amp Rig

Tube-style drive into a real cabinet.

Preview

Space Mini

Convolution reverb: eight synthesized spaces, twenty-five real cabinets.

Pocket

Sidechain that gives the room back in the groove.

$29 preorder
Preview

Gamelan

Modelled bronze instruments with flexible tuning.

Preview

Mouth Synth

A vocal tract you play like a synth.

Preview

Moodbox

Sixteen one-shots, one coherent generated mood.

Preview

Tetra Box

A sixteen-pad drum machine whose whole kit morphs across three faces at once.

No build recorded
Preview

OSC Mini

A compact subtractive synth for learning the signal path.

No build recorded
Preview

Pluck

A physical string model, rendered per note.

Preview

OSC-1

A complete synth built from separate modules.

Preview

Oscillator

Two oscillators with independent pitch, level, and stereo position.

Preview

Noise

Add breath and attack to a voice.

Preview

Filter

A resonant low-pass filter for shaping tone.

Preview

Envelope

Four controls for plucks, pads, and everything between.

Preview

LFO

A low-frequency oscillator for modulation.

Preview

Drive

Add harmonics with a waveshaper.

Preview

Crush

Bit reduction and sample-rate reduction for digital grit.

Preview

Chorus

A short modulated delay that widens one voice.

Preview

Tremolo

Periodic amplitude modulation with stereo phase control.

Preview

EQ

Three-band equalization with two crossovers.

Preview

Delay

A bounded feedback delay for repeats and ambience.

Preview

Reverb

Algorithmic room reverb with bounded feedback.

Preview

FX Mini

Drive, tone, and bounded feedback delay.

No build recorded
Preview

Vocoder

A channel vocoder for any live or recorded input.

Preview

Taper

A complete open tape path for printing a signal.

Gator-323

The Stargate reverb, ROM tables and all.

$59 preorder
Preview

Squeeze

A compressor with visible gain reduction.

Preview

Compressor

A full dynamics compressor with a filterable detector.

Preview

Parametric EQ

Six bands, a curve you can drag, and a bit-exact bypass.

Preview

Motion

Phaser and vibrato with independent LFOs.

Preview

Sloop

Generative MIDI loops.

Preview

Chordex

Generate a voiced chord from one note.

Preview

Chord Seq

Generate a progression, then route or export its MIDI.

Preview

HandMod

Map hand gestures to MIDI control.

Preview

Steps

A step sequencer and arpeggiator on one grid.

Preview

Drumstep

A clock-synced drum grid you can draw directly.

Preview

Linestep

Draw a melodic line on a clocked pitch grid.

Preview

Stepper

A 32-step Matrix, with ties, ratchets and a curve lane.

Preview

Arpeggiator

Walk held notes through a rhythmic pattern.

Preview

Pretty Chord

136 chord banks with random selection.

Preview

Chord Lab 1

Generate chord sets and trace melodic paths.

Preview

Kicker

Shape a kick from pitch drop, body, click, and drive.

Preview

Handpan

Nine tuned steel notes, with no extra tenth note.

Preview

Percussion Synth

A sample-free drum synth with ten circuits and sixteen steps.

Preview

Phase 7

Six operators, thirty-two ways to turn motion into tone.

Preview

FM Keys

A four-operator FM keyboard with no filter.

Preview

Bells

A bell voice whose chord stays minor in any key.

Preview

Kalimba

Two modelled tine instruments: kalimba and music box.

Preview

Gong

A struck gong voice with a late shimmer.

Preview

Acid Bass

A TB-303-style monophonic acid synthesizer.

Preview

Tines

A pickup-position model for tuned tine voices.

Preview

Sampler Reference

Play a sample library the way its author mapped it.

Maru Sampler

A free instrument for playing layered sample libraries.

FreeNo build recorded
Preview

Granular

A recording split into a playable grain cloud.

Preview

Drawbars

A tonewheel organ with nine drawbars and no attack stage.

Preview

Strings Ensemble

A sawtooth ensemble with chorus.

Preview

Gate

A noise gate with a clear threshold.

Preview

Chebyshev

Choose the harmonic produced by the distortion.

Preview

Frequency Shifter

Shift every partial by the same number of Hz.

Preview

Pitch Shift

Change pitch while keeping the tempo.

Preview

Auto Filter

A low-pass filter driven by an LFO.

Preview

Auto Wah

A resonant filter driven by your playing level.

Preview

Auto Panner

Move a signal across the stereo field.

Preview

Stereo Widener

Adjust stereo width without changing the dry signal.

Preview

Phaser

An all-pass phase effect with moving notches.

Preview

Vibrato

Pitch modulation from a modulated delay line.

Preview

Ping-Pong Delay

Cross-coupled delay with alternating repeats.

Preview

Pedalboard

A nested pedalboard with grouped effects.

Preview

Pitch Shift

Transpose notes by semitones and octaves.

Preview

Velocity

Shape, compress, or randomize note velocities.

Preview

Chord

Turn single notes into chords.

Preview

Humanize

Add timing and velocity jitter for human feel.

Preview

Grain Mini

The original time-based Granular instrument, kept playable.

Preview

Tetra Sampler

Morph between three generated sound faces.

Preview

LiveTransfer

Live style transfer from catalog models.

Preview

Parallel Focus - Latency Lab

Hear and inspect automatic latency compensation.

No build recorded
Preview

Terrain

Play an nn_terrain surface through a RAVE decoder.

Preview

Triprism

Bend echoes and space through a living prism.

Preview

CamMod

Map camera motion to MIDI CC.

Preview

Code Sequencer

Write music as code in Strudel or Symbolic Cycle, and hear it as MIDI.

Preview

PolySlide

Draw polyphonic pitch slides as connected note gestures.

No build recorded
Preview

Field Recorder

Capture the whole session, cull the keepers fast.

Preview

Duomutator

Two synth voices. One expressive sound.

Preview

Phase 7C

Six operators with an editable FM matrix.

Preview

Accompanist

Play a keyboard, hear a band.

Preview

Newsynth1

A Synth1-inspired virtual analog instrument.

Keep going.

Browse pluginsSee the musician-facing instruments, effects, and MIDI tools available as complete products.Build your ownStart with these modules and shape them into an instrument, effect, or new reusable block.DocsRead the Engine, SDK, and CLI guides for composing and publishing modules.