The platform
One geometry engine, four layers
You describe a shape as rules, and changing a rule rebuilds it exactly. The platform holds 2205 CAD algorithms, and the editors, the packages and the servers below all draw on them.
01 Model
Model in code, or interactively
Visual nodes
Rete
Each node is one algorithm. Wire them into a graph and the model reruns the moment a value changes.
Blocks
Blockly
Blocks snap together like puzzle pieces and run as JavaScript. The gentlest way into programming 3D geometry.
Code
TypeScript
The whole API in a code editor with IntelliSense, split over as many files as the project needs.
Interactive parametric CAD
Sketches, features, parts and assemblies with joints, a bill of materials and clash checks, without writing code. Exports STEP, GLB and STL, and an AI agent can model beside you.
The Designer, in the Gold plan at €34 a month
occt.shapes.solid.createBoxocct.operations.loftocct.fillets.filletEdgesmanifold.manifold.booleans.subtractocct.booleans.differencejscad.booleans.subtractocct.fillets.chamferEdgesocct.operations.sectionWiresocct.shapes.wire.textWiresocct.fillets.fillet2docct.operations.loftAdvanceddraw.drawAnyAsyncocct.shapes.solid.createBoxocct.operations.loftocct.fillets.filletEdgesmanifold.manifold.booleans.subtractocct.booleans.differencejscad.booleans.subtractocct.fillets.chamferEdgesocct.operations.sectionWiresocct.shapes.wire.textWiresocct.fillets.fillet2docct.operations.loftAdvanceddraw.drawAnyAsyncnpm init @bitbybit-dev/app my-projectclaude mcp add --transport http bitbybit https://mcp.bitbybit.dev/mcp02 Build
CAD kernels you can ship
The Bitbybit OCCT Kernel, Manifold and JSCAD, compiled to WebAssembly and published on npm under the MIT licence, with adapters for Babylon.js, Three.js and PlayCanvas. Scaffold an app with one command, and let your coding agent read the same API through our MCP server.
MIT-licensed, on npm
npm install @bitbybit-dev/cad-cloud-sdk03 Run
The kernels and Pro algorithms, behind an API
CAD Cloud runs the kernels from the packages on our servers and adds proprietary Pro algorithms that exist only there, such as sheet-metal unfolding. Send parameters and get a model back, convert STEP to glTF or chain steps into a pipeline. Call it from your backend with the SDK, or hand the key to an AI agent.
CAD Cloud, from €79 a month
04 Sell
A 3D configurator on your product page
3D Bits puts the model on your Shopify store. Shoppers change materials and sizes, the price follows every choice, and checkout charges for exactly what they built. Build it without code in the Composer, or script it with everything above.
"It's an all-in-one solution: 3D, UI and pricing in one app, no patchwork of plugins. Our customers can now configure the chair down to the smallest detail and see every change live in 3D."
The company behind Bitbybit
Custom development and consulting
When the products stop short of what you need, we build the rest: an algorithm we do not ship yet, a configurator made for your catalogue, CAD pipelines wired into your ERP or your store, on servers we run for you. You talk to the people who write the platform.
Follow the work
What customers sayRead every review in full
"The real highlight is Matas. We had some very specific requirements, e.g. individual colors with their own surcharge, which simply wasn't possible before. He made it happen, and fast."
"He truly went above and beyond to understand our vision for this project and turn it into a powerful, interactive 3D configurator."
"Thanks to that work, our full rack assembly is only ~3 MB, which helps it load quickly and run smoothly even on mobile devices."
"What you see is exactly what you get, just solid, well-executed work with no unnecessary noise."
"In my opinion, this 3D viewer is a game changer for any shop owner who has 3D models of their products available."
"An outstanding app for 3D configuration and beyond! It's intuitive, fully customizable, and backed by exceptional support from Matas."
Showcase
Open one and take it apart
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Pricing
Four ways to start
Prices exclude taxes. Compare every plan, the free editors included
Partners
