OpenSCAD - OpenSCAD is a software for creating solid 3D CAD objects.
Microsoft 3D Builder - View, capture, personalize, and print 3D models.
OpenJSCAD.org - OpenSCAD + JavaScript = OpenJSCAD, edit locally or remote online, preview in browser direct via...
ArCADia-Architecture - ArCADia-Architecture is a revolutionary component for the instant creation of architectural documentation and object drawing.
ImplicitCAD - ImplicitCAD is a programmatic CAD program, implemented in Haskell.
Vectorworks - Vectorworks 2D / 3D CAD and BIM software for Mac or Windows provides one flexible solution for your entire design process. Sketch, model, and present with the ultimate software from start to finish.