Impel : Impel takes the pain out of working with HTML5 asynchronous databases.
Statement callbacks? Transaction callbacks? One-to-many and many-to-many relati...
Prototype : Easy Ajax and DOM manipulation for dynamic web applications
script.aculo.us : script.aculo.us provides you with
easy-to-use, cross-browser user
interface JavaScript libraries to make
your web sites and web applications fly.
Moment.js : A javascript date library for parsing, validating, manipulating, and formatting dates.
howler.js : howler.js is an audio library for the modern web. It defaults to Web Audio API and falls back to HTML5 Audio.
ActiveJS is a JavaScript application framework that provides local and REST based data modeling and pure DOM view construction with back button and history support.