The HTML5 Creation Engine
Eva.js is a front-end game engine for creating interactive projects
Extensible Line-drawing & Polygon-filling Rasterization Libs for Java
SOLVESPACE is a free (GPLv3) parametric 3d CAD tool.
A canvas library for generating technical drawings
Free CAD software
CAD application for Technical Drawing exercises
A complete free web-based 3D interior planning script.
Convert DXF drawings of circuit boards to gEDA-PCB files.
A designer’s program for describing parts of the building
An infinite drawing area auto-extending
CurveFit is a software development kit (SDK) to optimize curves
Multi-user whiteboard emphasizing simplicity.
Drawing robot for electrical interconnection diagrams in DXF.