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Building the future of sound, with you.

© 2026 Maru · private early access

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All pluginsInstrumentsEffectsMIDI ToolsEurorackMonitoringExperimentalGames

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Suggest a plugin

Released products and public prototypes in one development catalog.

This is our public development catalog. Many entries are browser prototypes, not supported plugin releases. We hope to make reusable modules available to developers as the framework matures; product pages state current downloads.

Prototype

Metergram

See a stereo signal from every angle.

Prototype

Multifx

Six effects. Your order.

Guitarabin

$49 preorder

A fixed pedalboard for spacious guitar.

Sparklizer

$39 preorder

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

Prototype

Hand Chord

Choose a chord. Strum the air.

Prototype

Handpan

Nine tuned steel notes, with no extra tenth note.

Maru Sampler

A free instrument for playing layered sample libraries.

Prototype

Moodbox

Sixteen one-shots, one coherent generated mood.

Prototype

Plosive Repair Lab

Catch low-frequency bursts and hear what you remove.

Prototype

Limiter

Catch the peaks. Keep the stereo image.

Prototype

Room Acoustics

Place a sound in a room. Move the microphones.

Prototype

Oscillo

A synth controlled through a visual tuning display.

Prototype

Taper

A complete open tape path for printing a signal.

Pocket

$29 preorder

Sidechain that gives the room back in the groove.

Prototype

Wavetable

Two oscillator banks with continuous frame morphing.

Prototype

Triprism

Bend echoes and space through a living prism.

Prototype

Code Sequencer

Write music in Symbolic Cycle and hear it as MIDI.

Prototype

Granular

A recording split into a playable grain cloud.

Prototype

Vocoder

A channel vocoder for any live or recorded input.

Prototype

Gong

A struck gong voice with a late shimmer.

Prototype

Gamelan

Modelled bronze instruments with flexible tuning.

Prototype

Stepper

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

Prototype

Drumstep

A clock-synced drum grid you can draw directly.

Prototype

Loudmatch

Compare the effect, with the loudness matched.

Prototype

Linestep

Draw a melodic line on a clocked pitch grid.

Prototype

Mouth Synth

A vocal tract you play like a synth.

Prototype

Grain Mini

The original time-based Granular instrument, kept playable.

Prototype

Phase 7C

Six operators with an editable FM matrix.

Prototype

Phase 7

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

Prototype

HandMod

Map hand gestures to MIDI control.

Prototype

Tetra Box

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

Prototype

Evolving Environment

Play a world that changes with your sound.

Prototype

Kalimba

Two modelled tine instruments: kalimba and music box.

Prototype

Pluck

A physical string model, rendered per note.

Prototype

Tines

A pickup-position model for tuned tine voices.

Prototype

PolySlide

Draw polyphonic pitch slides as connected note gestures.

Prototype

Bells

A bell voice whose chord stays minor in any key.

Prototype

Steps

A step sequencer and arpeggiator on one grid.

Prototype

Newsynth1

A Synth1-inspired virtual analog instrument.

Prototype

Percussion Synth

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

Prototype

Bass Presence Lab

Give the low end an audible harmonic layer.

Prototype

Chord Seq

Generate a progression, then route or export its MIDI.

Prototype

CamMod

Map camera motion to MIDI CC.

Prototype

Duomutator

Two synth voices. One expressive sound.

Prototype

Compressor

A full dynamics compressor with a filterable detector.

Prototype

Accompanist

Experimental audio takes; local preview ready.

Prototype

LiveTransfer

Live style transfer from catalog models.

Building block
Eurorack · 24 HP · Panel jacks

Filter

A resonant low-pass filter for shaping tone.

Prototype

Sampler Reference

Play a sample library the way its author mapped it.

Prototype

Physics Playground

A physics sequencer: falling balls play tuned planks.

Prototype
Eurorack · 28 HP · Panel jacks

OSC Mini

A compact subtractive synth for learning the signal path.

Prototype

Capture Player

Play NAM captures, A1 or A2, in your browser.

Prototype

Drawbars

A tonewheel organ with nine drawbars and no attack stage.

Prototype

Acid Bass

A TB-303-style monophonic acid synthesizer.

Prototype

Tricorda

An editable physical-model piano with three ringing strings.

Prototype

FM Keys

A four-operator FM keyboard with no filter.

Building block
Eurorack · 14 HP · Panel jacks

MIDI Transpose

Shift notes while keeping held notes safe.

Prototype

Strings Ensemble

A sawtooth ensemble with chorus.

Prototype

MIDI Channel Router

Send each MIDI channel to its own instrument.

Prototype

Kicker

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

Prototype

Adaptive Score

Let game inputs shape a four-layer score.

Prototype

Terrain

Play an nn_terrain surface through a RAVE decoder.

Prototype

Amp Rig

Tube-style drive into a real cabinet.

Prototype

Room and Receiver

Move a source and receiver, then hear the room.

Prototype

Resonant Objects

Strike and shape a resonant object.

Building block
Eurorack · 18 HP · Panel jacks

Delay

A bounded feedback delay for repeats and ambience.

Prototype

FX Mini

Drive, tone, and bounded feedback delay.

Building block
Eurorack · 18 HP · Panel jacks

Granular Processor

Turn stereo sound into a granular cloud.

Building block
Eurorack · 12 HP · Panel jacks

Macro Oscillator

A compact virtual-analog voice with patchable control.

Building block
Eurorack · 18 HP · Panel jacks

Reverb

Algorithmic room reverb with bounded feedback.

Building block
Eurorack · 14 HP · Panel jacks

Modal Resonator

Strike a resonator, then patch its shape and motion.

Prototype

Parametric EQ

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

Prototype

Parametric EQ Advanced

Shape eight bands across stereo, mid and side.

Prototype

OSC-1

A complete synth built from separate modules.

Prototype

Space Mini

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

Prototype

Motion

Phaser and vibrato with independent LFOs.

Prototype

Chordex

Generate a voiced chord from one note.

Prototype

Pretty Chord

136 chord banks with random selection.

Prototype

Chord Lab 1

Generate chord sets and trace melodic paths.

Keep going.

Sounds and MIDIBrowse drum kits, sampled instruments, and MIDI banks, with more sound types on the way.Wish it existed?Suggest the missing instrument, effect, or workflow and help the community prioritize it.Producing music? Let's team upWe collaborate with artists on signature plugins and sound banks.