Teigha Viewer is a free, open-source application for viewing and sharing 3D CAD drawings. It enables users to view, measure, markup, and publish DWG, DGN, and other CAD formats. It is easy to use, with a user-friendly interface and a powerful drawing engine. With Teigha Viewer, users can view complex 3D models in detail, including viewing multiple models from different angles and distances, creating high-resolution images, and dynamically creating visuals. It supports multiple file formats, including DWG, DXF, and IGES, and can be used as a standalone application or integrated into existing CAD systems. Teigha Viewer also provides a secure, cloud-based collaboration platform, allowing users to securely share 3D models with colleagues and customers.
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.