Spirit - The animation tool for the web.
Pixi.js - Fast lightweight 2D library that works across all devices
Marionette Studio - Marionette Studio is an online animation software for beginners and professionals. Animate 2D characters and environments in minutes with no prior skills.
Anime.js - Lightweight JavaScript animation library
Haiku Animator - Create powerful animations for any app or website
Glottologist - JavaScript translation framework