176 Like FreeCAD FreeCAD is a general purpose parametric 3D CAD modeler. The development is completely Open Source (LGPL License). Free Open Source Mac OS X Windows Linux Windows XP Compatibility Parametric Modeling Portable Linux DWG support
12 Like Onshape Onshape is the first full-cloud 3D CAD system. It runs in a web browser and on any mobile device. Freemium Web Customizable Cloud sync Real time collaboration Version and Source control Parametric Modeling Drawing Board