cadrs

cadrs is a free, open-source parametric CAD application built in Rust that runs on Windows, Linux, and macOS. It supports sketching, part design, assemblies, drawings, and PCB layouts in a single document stored locally on your computer. The app features a pure-Rust modeling kernel with a Bevy UI, offering sketch constraints, dimensional driving, extrusion, revolution, sweeping, lofting, filleting, and boolean operations. Users can connect AI assistants like Claude or Cursor via MCP server integration, allowing them to sketch, extrude, and capture screenshots within the open document. Built with Claude-code, cadrs is designed for engineers and designers who need parametric CAD capabilities without cloud dependency.