PrusaSlicer - Prusa3D - 3D Printers from Josef Průša, PrusaSlicer is our own in-house developed slicer software based on the open-source project Slic3r. It's still open-source and you can get it in our Drivers & Apps Package. PrusaSlicer is a feature-rich, frequently updated tool that contains everything you need to export the perfect print files for your Original Prusa 3D printer.