Tracery : A story-grammar generation library for javascript. Write grammar objects, get generative stories.
Anime.js : Anime.js is a fast, multipurpose and lightweight JavaScript animation library with a simple, yet powerful API.
It works with CSS properties, SVG, DOM ...
Prototype : Easy Ajax and DOM manipulation for dynamic web applications
localForage : localForage is a handy library that improves the offline experience of your web app by using asynchronous storage (via IndexedDB or WebSQL where avail...
Modest Maps is a small, extensible, and free library for designers and developers who want to use interactive maps in their own projects.