ZWCAD Viewer is a free CAD viewer for DWG and DXF file formats developed by ZWSOFT. It is designed to help users view, measure, print, and markup 2D/3D CAD drawings without the need for a full CAD license. The viewer offers a wide range of features, such as layer control, block and drawing management, annotation, dimensioning tools, and more. It also supports a variety of file formats, including DWG, DXF, DWT, DWF, and IFC. Additionally, the viewer is available in multiple languages and can be used on any device with a web browser.
Discontinued The InfoGraph IGC company has been bought by OpenText and the free DWG Viewer is no longer offered. The latest version, 7.3.0, released in October 2015, can still be downloaded from Download.com.