Morpholio Trace - Morpholio Trace is widely called to be the dream software of the designers and architect.
Free DWG Viewer - Free Viewer for DWG, DXF, DWF View AutoCAD DWG/DWF/DXF files View & measure DWG, DXF, DWF
Qlone - 3D scan any object with your iPhone or iPad
DXF View - A lightning-fast drawing viewer enables you to view DXF and DWG™ files on Mac
DWG FastView - DWG FastView for Windows is a lightweight dwg/dxf drawing viewer and editor produced by Gstarsoft, no need of dwg format conversion, vector graph magnified without distortion and full compatible with AutoCAD DWG/DXF.
ODA Viewer - ODA Viewer is a web-based software solution that allows you to view the files based on ODA format and you can easily zoom the file for detail visualization.