DraftSight®
More than free* CAD software for your DWG files
DraftSight lets professional CAD users, students and educators create, edit and view DWG files. DraftSight runs on Windows®, Mac® and Linux.
http://www.3ds.com/products-services/draftsight/overview/
A free, standalone, professional-grade 2D CAD product for professional CAD users, students and educators to create, edit, and view DWG files.
DraftSight runs on Windows, Mac, and Linux, and includes access to online community support, an abundance of learning resources, and an annual product upgrade.
Plus, we’ve added some great new user-requested features in V1R5.0 –
download and get the details now.