Marionette Studio - Marionette Studio is an online animation software for beginners and professionals. Animate 2D characters and environments in minutes with no prior skills.
UI Movement - The best UI design inspiration, daily
Lottie by Airbnb - Easily add high-quality animation to any native app
Muzli - UI/UX and Design Inspiration Chrome Extension
CSS Animation Cheat Sheet - Awesome CSS3 plugin for spiffy animations
UI Jar - Hand-picked design inspiration for your real life projects