Autodesk DWG TrueView - Get a free DWG viewer to view, open, edit, and convert .dwg files, the native file format for AutoCAD files. DWG Trueview includes DWG TrueConvert.
ZWCAD Viewer - Cross-Platform .DWG | .DXF | .DWT R12-2013 Viewer
Creo View Express - Creo View Express is a simple CAD tool to review a 3D design for a quick evaluation.
AIGraph CAD Viewer - AIGraph CAD Viewer is carefully designed for non-CAD users to view,print CAD files.
AutoCAD LT - AutoCAD LT is a drafting tool to create 2D drawings.
progeCAD - progeCAD is DWG/DXF-native CAD software, built for professional drafting.