Animista - Create beautiful CSS animations in your browser
Animate.css - Animate.css is a cross-browser library of CSS animations.
vov.css - A small class-based animation library consisting of small but useful animations.
Anime.js - Lightweight JavaScript animation library
Micron.JS - A [μ] microInteraction library built with CSS and JavaScript
AniJS - A Library to Raise your Web Design without Coding.