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Building the future of sound, with you.

© 2026 Maru · private early access

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All pluginsInstrumentsEffectsMIDI ToolsEurorackMonitoringExperimentalGames

Play what we are building.

Explore instruments, effects, and MIDI tools as we develop them in public. Open playable prototypes in your browser.

Many are proofs of concept, not supported plugin releases. We hope to make reusable modules available to developers as the framework matures. Product pages state current downloads.

Browse instrumentsDeveloper preview
Maru UI kit controls for instruments and effects

Featured plugins

Explore our effects and audio tools. Each page includes details, demos, and release information where available.

All products
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.

Maru Sampler

A free instrument for playing layered sample libraries.

Prototype

Room Acoustics

Place a sound in a room. Move the microphones.

Pocket

$29 preorder

Sidechain that gives the room back in the groove.

In development

Explore what we are building.

These browser prototypes show our work in progress. They are not supported plugin releases. Suggest the ideas you want us to develop further.

Instruments

Synthesizers, samplers, drum machines, and playable acoustic models.

All instruments
Prototype

Handpan

Nine tuned steel notes, with no extra tenth note.

Prototype

Moodbox

Sixteen one-shots, one coherent generated mood.

Prototype

Oscillo

A synth controlled through a visual tuning display.

Effects

Delays, reverbs, amps, pedals, and other ways to shape a sound.

All effects
Prototype

Multifx

Six effects. Your order.

Prototype

Plosive Repair Lab

Catch low-frequency bursts and hear what you remove.

Prototype

Limiter

Catch the peaks. Keep the stereo image.

MIDI tools

Sequencers and note generators that control your instruments.

All midi tools
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

Linestep

Draw a melodic line on a clocked pitch grid.

Eurorack modules

Playable browser modules with front-panel patch sockets and Eurorack layouts.

All eurorack modules
Building block
Eurorack · 24 HP · Panel jacks

Filter

A resonant low-pass filter for shaping tone.

Prototype
Eurorack · 28 HP · Panel jacks

OSC Mini

A compact subtractive synth for learning the signal path.

Building block
Eurorack · 14 HP · Panel jacks

MIDI Transpose

Shift notes while keeping held notes safe.

Visualization and monitoring

Spectrograms, waveforms, and meters to understand your sound.

All visualization and monitoring
Prototype

Metergram

See a stereo signal from every angle.

Experimental

Playable ideas and early research that are ready to explore.

All experimental
Prototype

Hand Chord

Choose a chord. Strum the air.

Prototype

Code Sequencer

Write music in Symbolic Cycle and hear it as MIDI.

Prototype

Loudmatch

Compare the effect, with the loudness matched.

Game prototypes

Simple examples showing how Maru effects and tools can be used for game audio.

All games
Prototype

Physics Playground

A physics sequencer: falling balls play tuned planks.

Prototype

Adaptive Score

Let game inputs shape a four-layer score.

Prototype

Room and Receiver

Move a source and receiver, then hear the room.

Prototype

Resonant Objects

Strike and shape a resonant object.

Looking for something specific? Browse all plugins & tools to see all 79 projects on one page.

01

Find a plugin

Browse by instrument, effect, MIDI tool, or experiment, then narrow the list with filters.

02

Try the live demo

Open the browser version when it is available. You can hear and explore it without an install.

03

Check the release page

The product page shows the current price, included content, and the formats that are ready to download.

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.