LibreCAD - An open source 2D CAD application for Windows, Apple and Linux.
ContextCapture - Acute3D develops breakthrough photogrammetry software solutions to automatically turn photos into photorealistic high resolution 3D models
FreeCAD - An open-source parametric 3D modeler
Pix4Dmapper - Photogrammetry software for professional drone-based mapping, purely from images.
SketchUp - 3D for Everyone
Meshroom - Meshroom is a free, open-source 3D Reconstruction Software based on the AliceVision framework.