Lottie by Airbnb - Easily add high-quality animation to any native app
Tux - A baseline toolkit to ease to streamline website builds.
Marionette Studio - Marionette Studio is an online animation software for beginners and professionals. Animate 2D characters and environments in minutes with no prior skills.
XPRS - Free website builder - making web design like Lego™. No code
Spirit - The animation tool for the web.
Jitter - A simple animation tool on the web