Design CAD models with code.

Write JSCAD in VS Code or Cursor. Preview instantly. Export to STL and manufacturing-ready formats.

Install in VS Code View on GitHub

What You Can Do Today

Write parametric CAD using JavaScript (JSCAD)
Preview 3D models in real time
Export to STL, OBJ, DXF, SVG, AMF, and more
Use AI coding agents safely via MCP integration
Version control your designs like software

Simple Workflow

Write a .jscad file
Open HootCAD preview
Rotate, zoom, inspect
Export to your desired format

Built for Modern Development Workflows

Text-based design files
Meaningful Git diffs
Code review friendly
Works in VS Code and Cursor
Open source (MIT licensed)

Optional AI Assistance

HootCAD includes a secure MCP server for coding agents.

CAD guidance for JSCAD
Safe dimensional math