Parametric 3D for the web

Yours, not a stock model

Your initials, your word, your game. A generator hands you something that looks like a mug. These hand you yours.

Monogrammed mug

Your initials in raised glaze on the front. Rebuilds in about two seconds. Print it, give it away.

You bring: your initials

Cookie cutter

Heart, star, gingerbread, or a word of your own. Rebuilds in under two seconds, ready for the printer.

You bring: a word

Chess set from any game

Paste any game and step through it move by move, on a full set of board and pieces.

You bring: a chess game as PGN

Start from what you were handed

Plans, drawings, photos. The Design agent reads them, builds the model, renders it, and checks the result against the source.

CAD plan sheets

Farmhouse from CAD plans

Porch, wing and garage taken from the drawings. Six color schemes switch at once.

Published aircraft drawings

Airliner from public drawings

Built from the manufacturer's published planning drawings. Open the fuselage and look down the cabin, row by row.

Type drawings and photos

Train from drawings and photos

A Swiss double-deck cab car. Type a destination for its displays. Mirror angle and track layout switch at once.

Drawings: American Farmhouse plan set by Jay Osborne, freefarmhouse.com, CC BY-SA · Airbus, A321 Aircraft Characteristics for Airport and Maintenance Planning, © Airbus · RABe 512 type drawing © Stadler Rail, SBB press kit 2023.

A design is a file you can read

Designs are written in Moon, a parametric language with a YAML syntax. The Moon runtime rebuilds the geometry from that file: in your browser while you design, and again in your visitor's when they open your page. Because it is rebuilt rather than replayed, the parameters stay live.

coaster.moon

moon: "1.0"
doc: A drink coaster.

params:
    radius:
        default: 0.045
        doc: Coaster radius in meters.
        min: 0.03
        max: 0.08
    height:
        default: 0.012
        doc: Coaster thickness in meters.
        min: 0.006
        max: 0.03

render:
    pipe:
      - op: Cylinder
        with:
            height:
                param: height
            radiusLow:
                param: radius
      - op: Fillet
        with:
            radius: 0.003

Loading the live model…

And because a design is text, it lives in your repo: commit it, diff it, version it like the rest of your code.

Describe it, don't model it

Tell the Design agent what you want and it writes the Moon, runs it, reads the errors and iterates, exploring your files and checking its own work rather than just answering in a chat window.

  metal:      op: Material      with:-         color: [0.3, 0.32, 0.36, 1]+         color: [0.72, 0.62, 0.38, 1]          roughness: 0.35

The agent needs a free sign-in and your own AI: your Claude or ChatGPT subscription, an OpenRouter key, or a model server you run.

Two lines of HTML, and a file you host

Pack the design into a single .moons bundle, drop it beside your other static files, point the element at it. No harder to host than a static .glb, and your visitors get a configurator, not a frozen mesh.

<script src="https://moonomat.com/embed/v1.js"></script>
<moonomat-viewer src="/models/moon_watch.moons" theme="light"></moonomat-viewer>

your-site.com/watches/moon-automatic

Change the design, not just the camera. Hands and crystal switch at once; the moon day rebuilds the dial in the visitor's browser.

No page to put it on yet? Share a moonomat.com/view link instead: same live model, nothing to host.

What you can model

Moon is a modeling language, not a mesh generator: solids you can cut and fillet, profiles you can loft, materials you can bake, data you can build geometry from.

Solid modeling

Booleans (union, difference, intersection), plus fillets, chamfers, hulls, mirrors and plane trims, on watertight solids. This sponge is a single cube, drilled.

From 2D to 3D

Extrude, revolve, sweep and loft, over profiles you draw as paths, import as SVG, or set as text in your own font. The teapot: revolved body and lid, swept spout and handle.

Materials, UVs, baking

PBR materials, automatic UV unwrapping, texture and ambient-occlusion baking. Geometry is generated rather than repaired, so it is clean to begin with: no retopology pass.

Data-driven, scriptable

Typed parameters and full ECMAScript expressions inside the file; tensors, tables and graphs as values; noise and image processing. This orbit isn't drawn from data: a script inside the file computes it, point by point.

Imports

Meshes (glTF, OBJ, STL, STEP), vector art (SVG), images, fonts, and data (JSON, CSV, NumPy). This casting mold measures an imported STL and builds itself around it: swap in another model and the block, walls and pour funnel re-fit.

Outputs

A display-ready .glb for any viewer, engine or AR scene; also .svg, .png and .json. Deterministic: the same file always rebuilds the same model.

All 138 operations, specified →

Computed, not modeled

Some designs are never drawn. A rule grows a family from one seed, and a dataset becomes a shape you can hold.

Asteroid family

Six seeds of one rule set: same material, same scale, a different rock each time.

Tree family

Recursive branching. Every seed grows a different tree of the same species.

Mount EverestSRTM elevation tiles Your sky, tonightYale BSC5, 1,630 stars Climate spiralNASA GISTEMP 1880 to 2023 Population pyramidUN World Population Prospects

See it end to end

A design written, run, published, and embedded.

Pricing

The Viewer is always free. Anyone can open a design you shared, or load your embed, without an account. The editor is free as well; the Design agent is the only metered part.

On every tier you bring your own AI (your Claude or ChatGPT subscription, an OpenRouter key, or a model server you run) and pay that provider directly, with zero markup from us. The free cap is on the agent workflow, not on inference.

Ownership, licensing and billing, answered →