LinuxCNC (the Enhanced Machine Control) - LinuxCNC: an open source CNC machine controller. It can drive milling machines, lathes, 3d printers, laser cutters, plasma cutters, robot arms, hexapods, and more.
SolidCAM - The ‘Best-in-Class’ CAM Solution for Efficient & Profitable CNC-Programming Inside Your CAD
Vectric Aspire - The complete software solution for CNC Routing,
PyCAM - PyCAM is a toolpath generator for 3-axis CNC machining.
Mastercam - Mastercam's Dynamic Milling is a game changer for us.
jscut - A CAM in your browser! Convert your SVG files to CNC cutting paths with this tool.