svg.js 2.5.0, HTML, CSS, JavaScript
Raphael 2.1.0, HTML, CSS, JavaScript
No-Library (pure JS), HTML, CSS, JavaScript
Lo-Dash 2.2.1, HTML, CSS, JavaScript
A copy paste from http://irunmywebsite.com/raphael/drawtool2.php (Just in case source go down)
author(s): Torstein Hønsi