WebRTC (Web Real-Time Communication) is a free, open-source project that allows web browsers to communicate directly with each other in real-time, without the need for plugins or additional software. This enables a wide range of applications, such as video conferencing, online gaming, and file sharing.
WebRTC is important because it makes it possible to create real-time, interactive applications that run entirely in the browser. This eliminates the need for users to download and install separate software, which can be a major barrier to adoption. Additionally, WebRTC is highly secure, as it uses encryption to protect data in transit.