Columbus	A very simple interface for viewing almost any CAD format. Can be used in a Networked Environment. Lots of features, and registration is absolutely FREE. @ 16MB. Created by Arup Inc
AutoVue	AutoVue is a visualization and collaboration Viewing and Markup software which can natively view over 200 different document formats including Pro/ENGINEER, AutoCAD, MicroStation, CADKEY, CATIA, Inventor, Mechanical Desktop, SolidWorks, SolidDesigner, Solid Edge & STEP. A JAVA thin-client version is available. A fully functional evaluation versions of all programs are available for download. However, it puts a watermark on your drawing. Created by Cimmetry Systems
iges2step	Allows viewing IGES and STEP files and translating between them.
VIEWPlot	Viewplot allows you to inspect various CAD formats, take measurements and manipulate data.Create high resolution PDF documentation within the graphical user interface or in batch mode. Supported Input formats: Gerber(X), DXF, Drill, Hpgl. Created by Roneda
VariCAD Viewer	Viewer to for VariCAD created drawings. Created by VariCAD
AutoDesk Viewer	To view and print DWF files. Created by AutoDesk
PS Exchange	Free powerful stand alone CAD translator program capable of translating from many popular CAD input formats to many output formats. Created by Delcam Plc.
Bentley	A CAD file viewing for DGN, DWG and DXF file formats. Created by Bentley
DevCAD	Freeware DXF, DXB, DWG converter. Created by DevCAD Team
Solidworks Viewer	eDrawings Viewer allows viewing of native AutoCAD� files (DWG and DXF) and native SolidWorks parts, assemblies, and drawings. Created by Solidworks Inc.