Cross-platform Open-source 2D CAD
Toolkit for working with and mapping geospatial data
Draw vector graphics to scale using a descriptive language
Another drawing editor for LaTeX with PSTricks & TikZ
Converts between many 3D data formats
Convert DXF drawings of circuit boards to gEDA-PCB files.
3D .NET engine for Windows, Linux, Mac
Simple soundboard app with hotkeys
library to read dwg & read/write dxf files
A simple noise gate app intended for use with VOIPs like Skype.
VB module designed to create a SEPA XML file
collection of illustrative programs:small games, simulators: C, Matlab
A simple Python utility to calculate file size from bitrate.
Qt library for viewing DXF files
Ccide is a Decision Table preprocessor.
Java Persian Calendar library