A parametric design tool
that runs in a browser.

Open a Grasshopper file. Edit it. Send it as a link. No Rhino. No plugins. Nothing to install.

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An urban block definition solved live in the browser, 142 nodes, with its parameters down the left
Open any .gh or .ghx Edit the graph in the browser Download the .ghx back out Share as a link Draw and model natively Real-time geometry No Rhino licence required Urban planning · fabrication · product design Exports for CAD, GIS and 3-D print Solves on your machine Open any .gh or .ghx Edit the graph in the browser Download the .ghx back out Share as a link Draw and model natively Real-time geometry No Rhino licence required Urban planning · fabrication · product design Exports for CAD, GIS and 3-D print Solves on your machine
What it does

Open it. Edit it.
Send it to anyone.

A parametric modeler that reads Grasshopper files. The graph, the geometry, the drawing tools and the sharing all live in one browser tab.

01

Open

Drop in the .gh or .ghx you already have and it runs as you wrote it — no export step, no rebuild. Or start from nothing with the drawing and parametric tools built in.

02

Edit

The graph editor is the real thing: nodes, wires, sliders, values. Change the definition here, watch the geometry update, and download the .ghx back out to Grasshopper when you are done.

03

Share

Send a link and they get the working tool, not a picture of it. No account, no install, no licence at their end — and the solve runs on their machine, so it answers instantly.

The graph editor and the 3-D model side by side: edit a node on the left, the geometry updates on the right
A stacked-member tower driven by sliders, seen from a three-quarter view
An urban block definition solved in the browser, parcels, roads and massing, with its parameters down the left
What’s inside

Everything below works today.

Not a roadmap. This is what the app does the moment you sign in.

Open any .gh or .ghx

Straight from Rhino, unchanged. Curves, surfaces, meshes, transforms, data trees, maths and logic.

Edit the definition online

A real graph view — nodes, wires, values. Rewire it here and download the .ghx back out to Grasshopper.

Build one from scratch

No Grasshopper file needed. Draw, model and wire up a definition entirely in the browser.

Live parameters

Every slider, toggle and value list becomes a control. The solve runs on your machine, so it answers instantly.

MolaUI panel syntax

Name your groups and the parameters arrange themselves into tabs and sections, the way you laid them out.

States and Compare

Save a set of values as a scheme, then put schemes side by side and compare the results.

Play mode

Hand someone a link and they get a clean configurator — your controls, your geometry, no editor.

Exports that land in other tools

PNG, OBJ and STL on the free plan. DXF, GLB, GeoJSON and the .ghx itself on Pro.

Coming Script components (Python and C#), an exact NURBS kernel, and more. See the current limits →

Try it

Open your own file.

The honest test is your definition, not our demo. The free plan takes a minute to set up and costs nothing.

Start free

Or leave your details and we'll get in touch.

a few optional questions — helps us get early access right

No spam. No noise. Just a heads-up when early access opens.

✦

You're on the list.

We'll be in touch when early access opens.
Thanks for the interest.

Built in Grasshopper. Edited in a browser.
Sent as a link.