Here are some of the criteria we used to evaluate the best free 3D modeling software tools for 2023: Blender: Advanced free 3D modeling softwareīest Free 3D Modeling Software 2023: Criteria.FreeCAD: Open source free 3D modeling software.3D Slash: Easy free 3D modeling software for beginners.TinkerCAD: Best free 3D modeling software for beginners.Top Picks Best Free 3D Modeling Software – Full Round-Up