PrusaSlicer (formerly known as Slic3r Prusa Edition or Slic3r PE) is our own in-house developed slicer software based on the open-source project Slic3r. PrusaSlicer is an open-source, feature-rich, frequently updated tool that contains everything you need to export the perfect print files for (not only) your Original Prusa 3D printer. Of course, it’s still open-source and you’ll find everything on our GitHub. We’re still proud that our slicer is based on the original project written by Alessandro Ranellucci! Both projects now happily coexist and new features are frequently merged between one and another.