Protype Slicer
A free slicer for macOS and Windows. It prepares prints for Klipper printers and supports Protype CD400 and QIDI.
Download
Protype Slicer for macOS and Windows
Free. The buttons download the latest version.
Mac: Apple Silicon and macOS 12 or later. Windows: 64-bit. The Windows installer is not signed, so the system may show a SmartScreen warning: click “More info”, then “Run anyway”.
The slicing engine is based on OrcaSlicer and released under the AGPL-3.0 license.
Engine source code on GitHub
How it works
Which printers, and what is inside
Klipper printers
Prepares prints for Klipper-based printers. Supports Protype CD400 and QIDI; any other printer with Klipper and Moonraker can be added manually by its address.
Slicing on your computer
The model is sliced on your computer. The slicer opens STL, 3MF and STEP files, saves G-code and sends the file to the printer over the network.
AI assistant
Suggests print settings and builds a part model from a description. The assistant needs a connection and a free account, and it has a daily limit.






