Bforartists - Bforartists is a fork of Blender.
SketchUp - 3D for Everyone
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
LibreCAD - An open source 2D CAD application for Windows, Apple and Linux.
VRoid Studio - Download VRoid apk 1.13.0 for Android. VRoid Mobile is an avatar camera app
FreeCAD - An open-source parametric 3D modeler