Theatre.js

Theatre.js is a JavaScript animation library with a professional motion design toolset in the browser: a sequence editor with a dope sheet, a graph editor for fine-tuning every frame, easing presets and a property editor. You set up animation in code and refine it visually, and it works with Three.js and React Three Fiber for cinematic 3D scenes as well as HTML, CSS and SVG for interface motion. Extensions can add custom tools such as camera, light or shader controls.