PTC Creo is described as 'With Creo Parametric, and its extensions, you can create, analyze, view, and share designs downstream using 2D CAD, 3D CAD, and parametric and direct modeling capabilities' and is a CAD software in the photos & graphics category. There are more than 50 alternatives to PTC Creo for a variety of platforms, including Windows, Mac, Linux, Web-based and BSD apps. The best PTC Creo alternative is FreeCAD, which is both free and Open Source. Other great apps like PTC Creo are SketchUp, LibreCAD, Autodesk AutoCAD and OpenSCAD.