This is the official source code of FreeCAD, a free and opensource multiplatform 3D parametric modeler.

LibreCAD is a cross-platform 2D CAD program written in C++14 using the Qt framework. It can read DXF and DWG files and can write DXF, PDF and SVG files. The user interface is highly customizable, and has dozens of translations.

Parametric 2d/3d CAD

A python parametric CAD scripting framework based on OCCT

A CAD application for creating virtual LEGO models

Stanford Doggo is an open source quadruped robot that jumps, flips, and trots!

CAD from a parallel universe

A powerful, innovative and intuitive EDA suite for everyone!

Early-stage b-rep CAD kernel, written in the Rust programming language.

📐⚙ 2D vector line drawing and shape modeling for CNC and laser cutters.

Official FOSSCAD Library Repository

QCAD - The Open Source 2D CAD. QCAD is a cross-platform CAD solution for Windows, macOS and Linux. It supports the DXF format and optionally the DWG format (through a proprietary plugin).

Infrastructure for solid modeling

Parametric 2D and 3D modeler written in pure javascript

A WebGL-based 3D engine for technical visualization. Not actively maintained.

Python package for 3D CAD/BIM/PLM/CAM

3D CAD viewer and converter based on Qt + OpenCascade

3D printed DSLR tracking mount

.net dxf Reader-Writer

A Full Live-Scripted CAD Kernel in the Browser