Animista - Create beautiful CSS animations in your browser
Figma Super Tidy - Figma plugin to easily align, rename and reorder your frames
CSS Animation Cheat Sheet - Awesome CSS3 plugin for spiffy animations
Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
Keyframes.app - A timeline editor for CSS animations
Easometric Figma Plugin - With Easometric it's really easy to create isometric layers.