FreeCAD is an open-source parametric 3D CAD modeler designed for general-purpose feature-based design. FreeCAD is available on Windows, macOS, and Linux, and integrates heavily with Python for scripting and automation. It supports various  file formats such as STEP, IGES, OBJ, STL, DWG, DXF, SVG, SHP, DAE, IFC or OFF, NASTRAN, VRML, OpenSCAD CSG and many more, in addition to FreeCAD's native FCStd file format.
FreeCAD is used in fields like mechanical engineering, product design, and architecture, making it suitable for both professional and hobbyist projects.

To run: Menu -> Graphics -> FreeCAD
To run from terminal: `/opt/FreeCAD.AppImage` or `FreeCAD`
