TAU DOCUMENTATION

CAD belongs in the browser.

Tau is an open-source, next-generation platform for parametric CAD. Describe a part, inspect real geometry, and export anywhere without leaving the browser.

Read the runtime docsGitHub

  1. 01 / SOURCE

    Parametric code

  2. 02 / RUNTIME

    One typed contract

  3. 03 / OUTPUT

    Portable geometry

START HERE

Install the runtime. Make a part.

Compose only the runtime, kernel, and bundler packages your application needs.

Follow the quick start
PACKAGE MANAGER / PNPMApache-2.0
pnpm add @taucad/runtime @taucad/replicad @taucad/esbuild zod

BY TASK

What do you want to build?

Render your first model

Install the runtime, define a kernel, and export geometry from TypeScript.
/runtime/getting-started

Choose a CAD kernel

Match modeling language, geometry type, and deployment target to a kernel.
/runtime/guides

Embed the runtime

Connect browser, Node.js, or Electron hosts through one typed contract.
/runtime/guides

Work in the editor

Learn the browser workspace for AI-assisted parametric modeling.
/editor

FOR MACHINES, TOO

These docs ship as text.

Every page is available without layout chrome. Documentation pages also include a small copy-markdown action beside the table of contents.

llms.txtA concise index of the published documentation.llms-full.txtThe complete documentation corpus in one text response.Per-page markdownAppend .mdx to a documentation URL to read that page alone.