m0saic is a video compiler.

You write a program — a layout string, a template, your data — and m0saic compiles it to an MP4 or a PNG. Same program, same pixels, every time. And it’s plain text: the thing coding agents write best.

built for agents·any resolution·no browser in the pipeline

// the output

Hello, World

@m0saic/hello-world/v1

npx m0saic hello-world

Open in Mosaic Web

// the compiler at work

Animated Wireframe

@m0saic/dsl-tutorial/v1

npx m0saic make @m0saic/dsl-tutorial/v1 -w 1280 -h 720 -o tutorial.mp4

Open in Mosaic Web

Browse the templates

// industry solutions

Not a developer? Ready-made media for your business.

Sets of posts, client emails and store cards made for one kind of business, in its own look. No technical skills needed. Jewelry is first.

See industry solutions →

// the proof

See all 25 →

QR Code

@m0saic/media/qr/code/v1

npx m0saic make @m0saic/media/qr/code/v1 --props '{"outputFormat":"mp4"}' -w 1080 -h 1080 -o qr.mp4

Open in Mosaic Web

Scroll Wall

@m0saic/media/scroll_wall/v1

npx m0saic make @m0saic/media/scroll_wall/v1 --input-dir ./clips -w 1920 -h 1080 -o wall.mp4

Open in Mosaic Web

Code Snippet Morph

@m0saic/code/snippet-morph/v1

npx m0saic make @m0saic/code/snippet-morph/v1 -w 1280 -h 720 -o walkthrough.mp4

Open in Mosaic Web

KPI Card

@m0saic/alpine/kpi-card/v2

npx m0saic make @m0saic/alpine/kpi-card/v2 -w 1280 -h 800 -o kpi.mp4

Open in Mosaic Web

// how it works

One string is the whole layout

Rectangles subdivide a canvas — no pixels, no coordinates, just structure. Plain text, so you can write it or your coding agent can. The entire surface:

N() column split

N[] row split

F tile (rendered content)

> donates space forward

- intentional gap

X{Y} overlay

Your data fills the tiles

Every rectangle is a content slot: images, video, text, colors — or another template. Templates map JSON props to geometry, so a chart is data in, motion out.

--props '{"values": [72, 45, 88, 31, 66]}'

ffmpeg compiles it to pixels

The engine builds a deterministic render plan and ffmpeg executes it. Same inputs, same bytes — on your laptop or in CI. Output is an MP4 or PNG small enough to email. No browser in the pipeline.

// pricing

Free. No card, no account.

The full engine, every template, every resolution — nothing is locked behind a plan. Free renders carry a QR mark in the corner; $15/mo removes it.

See pricing →

// templates, by agent

Templates are agent-writable. Most of ours were.

A template is a file; the gate reviews it. That’s a loop a coding agent can run — and did, for the shipping library. With receipts.

See the receipts →

// one a day

An agent ships one template a day. Watch it work.

Scout, plan, build, critique, ship — and a gate that is code. Every template explains itself: the problem it found, the sources, how it was made, what it cost. Add the repo to Mosaic Desktop and use them.

Read the living case study →

// m0 & m0saic

m0 is the open layout language.

m0saic is the engine that compiles it — open language, open formats, open templates; commercial engine.

m0saic is a video compiler first. Its editors — Make, Compose, Layout — are built on top of it.