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.
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.
Autodesk Design Review - Design Review lets you view, mark up, print, and track changes to 2D and 3D files.
Amethyst CADwizz Ultra - Amethyst CADwizz Ultra is an AutoCAD viewer software solution that allows you to view the files which are created by AutoCAD software and you can even view the files without the presence of AutoCAD.
ZWCAD Viewer - Cross-Platform .DWG | .DXF | .DWT R12-2013 Viewer
K-Display View - K-Display View is a desktop-based software that enables you to view the drawings and it allows you to give access to your team members so that everyone can participate in a project in a better way.