DevTools for Tailwind CSS - The DevTools for Tailwind CSS bring back designing and debugging in your browser.
Animista - Create beautiful CSS animations in your browser
Keyframes.app - A timeline editor for CSS animations
Serverless-Dev-Tools - Developer tools for the serverless world
CSS Animation Cheat Sheet - Awesome CSS3 plugin for spiffy animations
FullStory - Meet FullStory, the app that captures all your customer experience data in one powerful platform.