Anijs
Declarative handling library for CSS animations.
Typed.js
A jQuery typing animation script.
Ani X
Super easy and lightweight css animation library
TweenJs
A simple but powerful tweening / animation library for Javascript. Part of the CreateJS suite of libraries.
Superscrollorama
The jQuery plugin for supercool scroll animations
Balloon.css
Simple tooltips made of pure CSS
Zoomooz
An easy-to-use jQuery plugin for making zooming web pages.
Imagehover.css
A Scaleable & Light Image Hover CSS Library
Alice
AliceJS - (A Lightweight Independent CSS Engine) is a micro JavaScript library. For a demo, click the link below.
Lazy Line Painter
A jQuery plugin for SVG path animation
JS Movieclip
A javascript little framework to animate spritesheet as AS3 movieclip
Skrollr Decks
skrollr plugin for fullpage presentation decks
Dynamo.js
Creates dynamic bits of HTML to add some zest to your content
Apricot
A simple Hpricot Clone for nodejs.
Motio
Small JavaScript library for sprite based animations and panning.
Gfx
CSS3 3D animation library
Animo.js
A powerful little tool for managing CSS animations