Windows Photo & Image CAD Applications
CAD program in two dimensions
CAD tool for 2D visualization and editing
Opens CAD files and can also change their formats
View projects completed with Autodesk Inventor
Open AutoCAD files without having it installed
Performs calculations on CAD terrain models
One of the best free 2D CAD programs
Design pipes with AutoCAD faster
Plugin for importing IGES files into AutoCAD
Library that will help you with the task in AutoCAD