Spirit - The animation tool for the web.
Pinreel - Pinreel is lightweight application software that is used to create fun and interesting animation videos by using pro-level templates.
Marionette Studio - Marionette Studio is an online animation software for beginners and professionals. Animate 2D characters and environments in minutes with no prior skills.
Haiku Animator - Create powerful animations for any app or website
Haiku - Haiku is an open source OS catered specifically to the needs of personal computing.
Anime.js - Lightweight JavaScript animation library