Top 3D-PRINTING GitHub Repositories & Tools (2026)

Official source code of FreeCAD, a free and opensource multiplatform 3D parametric modeler.

G-code generator for 3D printers (Bambu, Prusa, Voron, VzBot, RatRig, Creality, etc.)

A flexible, memory compact, fast and dynamic CSG implementation on top of three-mesh-bvh

The ShapeScript 3D modeling app for macOS and iOS

Multi-modal constructive solid geometry kernel in Rust

:globe_with_meridians: Fast 3D file format converter in C++ supporting OBJ, 3DS, MA, MB, XSI, LWO, DXF, STL, MAT, DAE.

Dust3D is a cross-platform 3D modeling software that makes it easy to create low poly 3D models for video games, 3D printing, and more.

Parametric CAD modeling with Lua