# Editor
URL: /editor



The Tau editor is a parametric CAD workspace that runs in the browser at [tau.new](https://tau.new). You describe geometry in code, and the editor renders it as you work.

A project opens as a dockable panel layout:

* **Code editor** — a Monaco editor with code completion.
* **3D viewport** — renders the model, with camera, grid, measurement, and section-view controls.
* **AI chat** — an assistant that reads and edits project files and runs CAD tools directly.
* **Files** — a project file tree with export to standard CAD formats.

Geometry evaluation runs on the [Tau runtime](/runtime), which you can also embed in your own applications. Read the runtime documentation to learn the kernels and modeling APIs behind the editor.