FreeCAD

FreeCAD is a versatile open-source 3D parametric modeler that supports a wide range of engineering and design disciplines. It offers robust features for both 2D drawing and 3D design and modeling, which are accessible through a modular architecture that includes various workbenches tailored to specific tasks. Users can benefit from advanced features such as an API for customization, an activity dashboard for project management, and tools for animation and annotations. Additionally, FreeCAD includes practical tools for collaboration, bill of materials management, and the ability to handle complex assemblies and macros, particularly through Python scripting. Its support for a variety of file formats enhances interoperability with other CAD software, making it a flexible solution for both hobbyists and professional engineers.