WebGL (Web Graphics Library) is a JavaScript API (Application Programming Interface) that allows for rendering interactive 2D and 3D graphics within web browsers without the need for additional plugins or software. It enables web developers to utilize the power of the computer's GPU (Graphics Processing Unit) to generate highly performant graphics and visualizations directly in the browser.

Here are some key aspects of WebGL:
1. Rendering Capabilities
2. Integration with HTML5 and JavaScript
3. Hardware Acceleration
4. Cross-Platform Compatibility
5. Applications and Use Cases
6. Security Considerations

To work with WebGL, developers can use various libraries and frameworks that provide higher-level abstractions and utilities to simplify WebGL programming, such as Three.js, Babylon.js, or Pixi.js. These libraries offer additional features, support for complex rendering pipelines, and built-in tools for handling common tasks in 2D and 3D graphics development.