Marionette Studio - Marionette Studio is an online animation software for beginners and professionals. Animate 2D characters and environments in minutes with no prior skills.
PixaMotion - Make live photos, live wallpapers, moving Backgrounds & themes with animation effects.
Lottie by Airbnb - Easily add high-quality animation to any native app
StoryZ - StoryZ Photo Motion and Video Maker is a photography app that allows you to create visual stories from still images.
CSS Animation Cheat Sheet - Awesome CSS3 plugin for spiffy animations
VIMAGE - Add moving effects and elements to your photos.