OpenSCAD is a free software application for creating solid 3D computer-aided design (CAD) objects. It is a script-only based modeller that uses its own description language; parts can be previewed, but cannot be interactively modified by mouse in the 3D view. OpenSCAD scenarijus nurodo geometrinius primityvus (pvz., sferas, dėžutes, cilindrus ir kt.) ir apibrėžia, kaip jie modifikuojami ir jungiami (pavyzdžiui, pagal sankirtą, skirtumą, apvalkalo derinį ir Minkowskio sumas), kad būtų pateiktas 3D modelis. As such, the program does constructive solid geometry (CSG). OpenSCAD is available for Windows, Linux and macOS.