Three.js is a powerful and versatile JavaScript library designed to simplify the process of creating and displaying animated 3D computer graphics in a web browser. It leverages the WebGL API, which allows for hardware-accelerated 3D graphics rendering directly within the browser without the need for plugins.

The library provides a high-level abstraction over the complexities of WebGL, making it accessible to a wider range of developers. With Three.js, you can easily define 3D scenes, add geometries, apply materials and textures, position lights, and animate objects. It handles the intricate details of rendering, shading, and performance optimization, allowing you to focus on the creative aspects of your 3D project.

Whether you're building immersive games, interactive visualizations, product configurators, or engaging educational content, Three.js offers the tools and flexibility to bring your 3D ideas to life on the web. Its extensive documentation, active community, and numerous examples make it a popular choice for developers worldwide looking to integrate 3D into their web applications.