jQuery - The Write Less, Do More, JavaScript Library.
Lottie by Airbnb - Easily add high-quality animation to any native app
React Native - A framework for building native apps with React
Marionette Studio - Marionette Studio is an online animation software for beginners and professionals. Animate 2D characters and environments in minutes with no prior skills.
Babel - Babel is a compiler for writing next generation JavaScript.
Spirit - The animation tool for the web.