DXF View - A lightning-fast drawing viewer enables you to view DXF and DWG™ files on Mac
A360 VIEWER - Free online CAD Viewer
de·caff Viewer - The de·caff Viewer version 3.
eDrawings Viewer - View, print, and review all types of eDrawings files Built-in Viewer
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.
DWGSee - A lite and fast dwg viewer, let you view, print, markup, measure dwg files. Supports AutoCAD 2020 drawing format!