LibreCAD is a free Open Source 2D CAD drawing tool for Windows, Macintosh and Linux.
It is a very nice personal CAD tool with various features and DWG support is also enabled in LibreCAD.
LibreCAD is based on the community edition of QCad LibreCAD has been re-structured and ported to qt4.
LibreCAD Portable was updated to version 2.0.0 beta 5 on 2013/5/23.
Download Free LibreCAD Portable
Download LibreCAD Stable Portable 1.0.3
LibreCADPortable_1.0.3.paf.exe | 8.93 MB
@ThinstallSoft.com | LibreCAD Portable 1.0.3 Download Page