DraftSight is a professional-grade, open 2D CAD product for users who want a better way to create, edit and view DWG files. DraftSight is easy to use and is available for professional CAD users, students and educators to download and activate for free.*
Based on an advanced architecture, DraftSight has a small footprint, should take a few minutes to download, and supports Microsoft® Windows XP®, Windows Vista®, Windows® 7 (General Release), Mac® and Linux®** (Mac and Linux currently in Beta).
(* Standalone license. Activation required.)
DraftSight site