DOMAssistant : The modular lightweight JavaScript library, with CSS selectors, event handling, AJAX and complete Unicode support
Processing.js : Processing.js is the sister project of the popular Processing visual programming language, designed for the web. Processing.js makes your data visuali...
Parsley.js : Javascript forms validation.
Powerful, UX aware & Dead simple.
polyfill : polyfill makes web development less frustrating by selectively polyfilling just what the browser needs. Use it on your own site, or as a service.
jQuery : The Write Less, Do More, JavaScript Library
A simple library for handling keyboard shortcuts in Javascript.