react-spring
Bring your components to life with simple spring animation primitives for React
ScrollMagic
The javascript library for magical scroll interactions. ScrollMagic helps you to easily react to the user’s current scroll position.
Framer Motion
Framer Motion is a production-ready React animation and gesture library.
Pose | A truly simple animation library for React, React Native, and Vue
Declarative motion system for React, React Native, and Vue
GreenSock
GreenSock community forums where questions about GSAP and HTML5/JavaScript animation are answered. Uncommonly kind and welcoming tone.
anime.js
Javascript animation engine

honorable mention to Lottie as well, not really solving the same problem here but can be used as an alternative.

Lottie
Easily add high-quality animation to any native app. Lottie is an iOS, Android, and React Native library that renders After Effects animations in real time, allowing apps to use animations as easily as they use static images.
Photo by Ian Schneider / Unsplash