Pixi.js - Fast lightweight 2D library that works across all devices
Substance - A JavaScript library for web-based content editing
Anime.js - Lightweight JavaScript animation library
Rellax.js - Lightweight, vanilla javascript parallax library
Animo.js - Animo.js is a lightweight, open-source tool that enables developers to manipulate animations and transitions.
p5.js - JS library for creating graphic and interactive experiences