DeskProto is described as '3D CAM program (CAM = Computer Aided Manufacturing). It can import STL files from any 3D CAD program, calculate CNC toolpaths and then write NC program files for any brand of CNC milling machine, 3-axis, 4-axis or 5-axis' and is an app in the development category. There are more than 10 alternatives to DeskProto for a variety of platforms, including Windows, Linux, Web-based, Mac and Self-Hosted apps. The best DeskProto alternative is Blender CAM, which is both free and Open Source. Other great apps like DeskProto are LaserWeb, Mastercam, PyCAM and CamBam.