A9CAD and A9Converter are two popular free CAD software programs. They meet basic computer-aided design needs for many users and can used as alternative to AutoCAD.
Keywords: free, cad, a9cad, a9converter, autocad, windows, engineering
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A9CAD is a general purpose two-dimensional CAD program.
A9Convert is a command line program to convert DWG/DXF to different versions of DWG/DXF.