GSAP - GSAP (GreenSock Animation Platform) is a suite of JavaScript tools for high-performance animations that work in all major browsers.
Animate.css - Animate.css is a cross-browser library of CSS animations.
Animista - Create beautiful CSS animations in your browser
Anime.js - Lightweight JavaScript animation library
vov.css - A small class-based animation library consisting of small but useful animations.
Velocity.js - Velocity is a JavaScipt animation engine.