CADAM is the open source text-to-CAD web application
An open source harness for generating CAD models
a parametric 3D CAD modeler
Extensible Line-drawing & Polygon-filling Rasterization Libs for Java
Software for electromagnetic simulation
Cross-platform Open-source 2D CAD
Static and Dynamic Structural Analysis of 2D and 3D frames.
A canvas library for generating technical drawings
CAD 2D for Land Surveying and Civil
Linux tiny CAD for educational purposes
COPanno optimizes the panels cuts.
Free multiphysics simulation software package
A designer’s program for describing parts of the building
library to read dwg & read/write dxf files
A package for Isogeometric Analysis in Octave and Matlab