Left-click to create an object. Right-click to show next example. What's this Box2DJS is a JavaScript port of Box2D Physics Engine. To tell the truth, this is converted from Box2DFlashAS3_1.4.3.1 in an automatic manner. (The reason why not Box2DFlashAS3_2.0.0 based is simply because I overlooked the renewal.) How to use Download a zip file and extract it. Copy js/ and lib/ directories from the ext