Dynamo.js
Creates dynamic bits of HTML to add some zest to your content
Scroll Trigger
Triggers classes on html elements based on the scroll position. Uses requestAnimationFrame so it doesn't jack the users scroll.
Morpheus
A Brilliant Animator
Apricot
A simple Hpricot Clone for nodejs.
Css3d Engine
css 3d light engine. very easy to use. 14k
JS Movieclip
A javascript little framework to animate spritesheet as AS3 movieclip
Sprite.js
An efficient javascript sprite animation framework
Animsition
A simple and easy jQuery plugin for CSS animated page transitions.
Jmpress.js
A jQuery plugin to build a website on the infinite canvas
Between.js
Lightweight JavaScript (ES6) tweening engine
Green Sock Js
Public repository for GreenSock's JavaScript libraries like GSAP. See http://www.greensock.com
Odometer
Smoothly transitions numbers with ease. #hubspot-open-source
Move.js
CSS3 backed JavaScript animation framework
Animo.js
A powerful little tool for managing CSS animations
Smooth Scrollbar
Customizable, Pluginable, and High Performance Scrollbars!
Rekapi
A keyframe animation library for JavaScript.
Superscrollorama
The jQuery plugin for supercool scroll animations