WebRTC is an open framework for the web that enables Real Time Communications (RTC) in the browser. It is an open technology for voice and video on the web. The WebRTC initiative is supported by Google, Mozilla and Opera.
WebRTC offers web application developers the ability to write rich, realtime multimedia applications (like video chat) on the web, without requiring plugins, downloads or installs. It’s purpose is to help build a strong RTC platform that works across multiple web browsers, across multiple platforms.