O
OrcaSlicer
3D printing & CAMOpen-source slicer with built-in printer calibration tools
- Stars
- ★ 16k
- Licence
- AGPL-3.0
- Updated
- Commercial OK
Alternative to Simplify3D

Feature-rich open-source slicer for FFF and resin printers
From GitHub, fetched 19 Oct 2026.
PrusaSlicer turns 3D models into G-code for Prusa and many third-party printers. It has variable layer height, paint-on supports, multi-material and organic supports.
From prusa3d.com/p/prusaslicer, checked 19 Oct 2026. Quotes are the project's own words.
| Runs on | Windows, macOS, Linux |
|---|---|
| Commercial use | Allowed Open-source licence (AGPL-3.0): the Open Source Definition rules out restrictions on fields of use, including business use. |
Sources: opensource.org/osd. “Runs on” is from this listing. Blank means we haven't found it in official docs yet, not that it's unsupported.
Open-source slicer with built-in printer calibration tools
Alternative to Simplify3D
Popular open-source 3D-printing slicer
Alternative to Simplify3D
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Alternative to Simplify3D, Fusion 360