Dust3D - Cross-platform open-source 3D modeling software. Polyscope - C++ viewer and user interface for 3D data like meshes and point clouds. Open3D - Modern Library for 3D Data Processing. Spoke - Easily create custom 3D environments. Buerli - Browser based modeling. Non-manifold, programmatic CAD workflow for the web. hmm - Heightmap meshing utility. Convert a grayscale heightmap image into a 3D mesh. Sketchfab - Publish & find 3D models online. Antimony - Computer-aided design (CAD) tool from a parallel universe in which CAD software evolved from Lisp machines rather than drafting tables. Vectary - Easiest Online 3D Design and 3D Modeling Software. FreeCAD - Free and open source multiplatform 3D parametric modeler. (HN) Ruckus - Procedural CAD for Weirdos. FBX2glTF - Command-line tool for the conversion of 3D model assets on the FBX file format to the glTF file format. CadQuery - Intuitive, easy-to-use Python module for building parametric 3D CAD models. sdfx - Simple CAD package using signed distance functions. modeler - CSG modeling with React. glTF-Transform - Supports reading, editing, and writing 3D models in glTF 2.0 format. Draco - Library for compressing and decompressing 3D geometric meshes and point clouds. It is intended to improve the storage and transmission of 3D graphics. (Web) Anim8or - 3D modelling and character animation. 3dfier - Open-source tool for creating of 3D models. (Docs) Shapefest - Massive library of free 3D shapes. sdf - Generate 3D meshes based on SDFs (signed distance functions) with a dirt simple Python API. potpourri3d - Python library of various algorithms and utilities for 3D triangle meshes and point clouds.