Download of JSCAD-12-22-12.zip (JSCAD-12-22-12.zip ( external link: SF.net): 51,170 bytes) will begin shortly. If not so, click link on the left.
NOTE: I moved the source to Github. The name is the same.
JS-CAD is meant to be a small, lightweight CAD application that will run in any HTML5 compliant browser.
Give the latest version a try: http://js-cad.sourceforge.net/latest/index.html