What is Maru?

Maru Kit is a tool built for the creative transformation of sound into motion.

To make the process simpler and faster, we’ve prepared the Motions for you. You can customize them extensively, then export them into finished videos without putting your device through the computationally heavy process of rendering complex graphics.

Audio visualization on the internet has long been caught between two extremes: professional tools that are expensive and difficult to use, and simple tools that leave little room for meaningful creative control. We wanted to build something in between.

From the first note to the final export, Maru is designed to keep the creative process simple, direct, and uninterrupted.

Why did we build Maru?

It started with two circles.

I came across a creator introducing a song on Instagram. On the screen were two simple circles, one inside the other, moving with the music. Dancing to the frequencies and amplitude. There wasn’t much to it, but something about it stayed with me. It made the music feel more alive, in a new sense.

What fascinated me was the contradiction. The result was simple, quiet, and almost effortless, yet creating it required a process that felt completely disproportionate to what was on the screen. The more I thought about it, the more I felt that something was wrong. If the idea itself was so simple, why did making it have to be so complicated?

And I knew it shouldn’t be. The moment the process becomes complicated enough to overshadow the idea, something is lost. The simplicity wasn’t just part of how those two circles looked; it was part of what made them meaningful in the first place.

That became the idea behind Maru.

My interest in Japanese philosophy and minimalism, together with my tendency to reduce things to their essential parts, led me to a simple principle: I wanted a name that would remind me what to build, rather than a list of things to avoid. Maru became that reminder – a small word carrying a larger idea of simplicity, completeness, and restraint.

Everything we’ve built since has been an attempt to stay true to that idea.

Beginning with sound

Maru begins with sound. Not with the final frame. Not with what the output is supposed to look like. It begins by paying close attention to the thing that comes first: the music or the audio itself.

Every Motion is built around the character of the sound it responds to. Its rhythm, dynamics, texture, silence, and movement. The visual is not placed on top of the music; it grows from it.

That’s why the first things we made for Maru were not visuals, but sounds.

The music you hear throughout Maru comes from the people who care about sound just as we do at Maru. These pieces are not simply examples for the product. They are part of how we explore what Maru can become – how sound can be interpreted, reduced to its essential qualities, and turned into motion without losing what made the sound worth listening to in the first place.

A long-standing passion for music has given me the ear and experience to create some of the demos myself. For the rest, Maru Kit is shaped by the people who make the music behind them:

Amin

Artist and creator behind "{song_name}", ...

Built underneath, invisible above

The simplicity of Maru is backed by a considerable amount of engineering.

We build on modern cloud infrastructure, specialized rendering systems, and datacenter-grade GPUs capable of handling the computational demands of audio-reactive video. From processing the sound to generating the visuals and encoding the final video, each stage is designed as part of one continuous system.

We take this work immensely seriously because, to us, infrastructure is not separate from the experience. It determines how quickly a Motion responds, how reliably an export completes, and how little the creator has to think about what is happening behind the scenes.

We pay close attention to every layer of Maru, from the way an upload is received and processed to how a Motion is rendered, encoded, and delivered. We spend hours refining details that can come down to a fraction of a second: reducing unnecessary processing, improving how resources are allocated, making failures recover gracefully, and keeping each step predictable under load.

That level of attention is intentional, and it is part of how we build Maru. The goal is not to make the technology visible. It is to make the experience feel effortless. And we are still building, with much more to come.