Whimsical Wireframes - Lightning fast wireframing with real-time collaboration.
Animista - Create beautiful CSS animations in your browser
Figma Map Maker - Figma plugin to generate map, supporting Google Maps, Mapbox
CSS Animation Cheat Sheet - Awesome CSS3 plugin for spiffy animations
Invision - Prototyping and collaboration for design teams
Keyframes.app - A timeline editor for CSS animations