FreeCAD

Engineered for flexibility, FreeCAD is a parametric 3D CAD modeler where every design step is controllable and editable. Its lightweight, portable nature makes it ideal for use anywhere. The software comes packed with configuration parameters and modular workbenches tailored for specific tasks like architectural design, robotics, or finite element analysis. This open-source tool empowers users to automate tasks via Python scripting and adapt the interface, providing a professional-grade modeling environment without the cost, suitable for all user levels.