MatterControl is a free and open-source 3D printer control software for Windows, Mac and Linux platforms, developed by 3D printer retailer MatterHackers. It lets you design, organize, and manage your 3D prints. As the 3D printing market continues to heat up and become more competitive, its user base has been growing.

Simplify3D is a powerful and easy-to-use 3D printing & slicing software that is able to control over all aspects of the 3D printing, also regarded as one of the best three 3D slicing software available at present (the other two are free Cura and open-source Slic3r). It supports the import of different types of files, as well as the export of G-code and X3G slice files, and supports most desktop and DIY 3D printers in the market!