EasyPrint 3D is a FREE, easy to use 3D printing software developed by GEEETECH, it is capable of converting a digital 3D model into printing instructions for your 3D printer. It cuts the model into horizontal slices (layers), generating toolpath information and calculating the exact amount of filaments to be extruded.
A Cura based one that is not as simple can be found here;
Easyprint Lite Beta Slicer Software
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