OpenSCAD
Open-source alternative to Autodesk Fusion parametric modeling
OpenSCAD is an open-source 3D CAD tool, an alternative to Autodesk Fusion-style parametric modeling. Instead of drawing by hand, you write scripts that describe your model, which makes designs easy to adjust and reuse. It is popular with engineers, makers, and 3D-printing hobbyists who like precise, code-driven modeling.
Key features
- Script-based parametric 3D modeling
- Constructive solid geometry
- Free CAD for 3D printing projects
Before you switch
Design tools are about file compatibility as much as features. Before switching, test importing one real project file and exporting it in the formats your collaborators need. Browser-based open-source design tools have closed the gap fast, and self-hosting means your design files never sit on someone else’s server.
Like every project on OpenShelf, OpenSCAD is developed in the open — you can read the code, follow development, and even contribute. Check the system requirements and the project’s own documentation linked on this page before installing.