SketchUp - 3D for Everyone
AutoCAD LT - AutoCAD LT is a drafting tool to create 2D drawings.
LibreCAD - An open source 2D CAD application for Windows, Apple and Linux.
BricsCAD - A powerful CAD platform, with features familiar to you from native .dwg applications.
DraftSight - Discover Dassault Systèmes®' DRAFTSIGHT™ Professional CAD software that lets you create, edit, view and markup any kind of 2D drawing. Learn more here.
ActCAD - ActCAD is one Software for many applications covering the primary domains of – Architecture, Engineering, Construction (AEC) including Structural, Electrical, and Mechanical.