Anime.js is a lightweight, fast, and versatile JavaScript animation library designed for creating smooth and dynamic animations. It supports CSS properties, SVG, DOM attributes, and JavaScript objects, offering a simple yet powerful API. The library is modular, allowing developers to import specific functions like `animate`, `stagger`, and `createSpring` for precise control over animations. Key features include support for looping, easing, staggering, and timeline-based animations, as well as utilities for SVG morphing and motion paths. Anime.js is optimized for performance and is compatible with modern JavaScript modules. It is free to use and maintained through community support and sponsorships.