The official Open-Asset-Importer-Library Repository. Loads 40+ 3D-file-formats into one unified and clean data structure.

This is the official source code of FreeCAD, a free and opensource multiplatform 3D parametric modeler.

Open3D: A Modern Library for 3D Data Processing

Python library for loading and using triangular meshes.

The open source mesh processing python library

Toolkit for parallel semi-structured quadtree and octree mesh generation with specialized tools for topology optimization

CloudCompare main repository

Object-oriented pure Python B-Spline and NURBS library

A C++ & Python viewer for 3D data like meshes and point clouds

Digital Geometry Tools and Algorithm Library

A generic programming header only C++ library for processing polygonal and polyhedral meshes

Parallel algorithms and data structures for tree-based adaptive mesh refinement (AMR) with arbitrary element shapes.