FreeCAD is a parametric 3D modeler made primarily to design real-life objects of any size. Developed by Juergen Riegel, Werner Mayer
License: Open Source
FreeCAD is an open-source CAD software ideal for hobbyists and those on a budget, offering parametric modeling and customization through scripting. In contrast, Autodesk Inventor is a comprehensive industry-standard tool with robust simulation and assembly features, but it comes at a high cost and is less flexible in terms of customization.