2D physics engine for games
Jcrop (official) - Image Cropping Plugin for jQuery
qrcode generation standalone (doesn't depend on external services)
Simple isometric graphics library for HTML5 canvas
A particle engine for html5
jQuery plugin for 'responsive cropping'. Dynamically crop images to fill available space without cutting out the image's subject. Great for full-screen images.
A canvas based drawing app that you can integrate easily on your website.
📐⚙ Library for creating 2D vector drawings for CNC and laser cutter machines.
jQuery plugin for enhancing HTML Image maps