WebGL enables 3D graphics and hardware-accelerated rendering within web browsers without plugins. This allows for rich 3D graphics and gaming experiences to be developed for the web. There are many experiments underway with WebGL across areas like science visualization, graphics demos, and games. Over the next few years, best practices are expected to emerge from a variety of approaches, lowering barriers to entry while also pursuing high performance. WebGL has the potential to significantly expand the scope of web development.