SketchUp - 3D for Everyone
Autodesk AutoCAD - Autodesk AutoCAD is a commercial computer-aided design (CAD) and drafting software application.
DraftSight - Discover Dassault Systèmes®' DRAFTSIGHT™ Professional CAD software that lets you create, edit, view and markup any kind of 2D drawing. Learn more here.
Assetforge - Asset Forge allows anyone to create 3D models and 2D sprites using building blocks.
LibreCAD - An open source 2D CAD application for Windows, Apple and Linux.
Live Home 3D Pro - Live Home 3D Pro is a nimble and completely operative 3D modeling tool that allows designers and architects to do interior designing with ease.