csg

OpenJSCAD.org

+3

JSCAD is an open source set of modular, browser and command line tools for creating parametric 2D and 3D designs with JavaScript code. It provides a quick, precise and reproducible method for generating 3D models, and is especially useful for creating ready-to-print 3D designs.

AnvilCSG

+1

Anvil CSG Beta 2: a free legacy preview of brush-based level design inside Unity. Hammer-inspired workflow, Built-in and URP.