Cross-platform Open-source 2D CAD
Free minimalist software for maps, import DWG, DXF, SHP, KML, GeoJSON
Nesting SDK, Library
Visual comparison tool for difference in image and CAD files.
Testsuite for libdwg
Application for management of CAD files and projects
library to read dwg & read/write dxf files
Insert PDF into DWG in AutoCad. Autolisp Frontend for PSTOEDIT