WebRTC stands for Web Real-Time Communication, a technology that enables audio, video, and data sharing directly between web browsers without the need for plugins. It allows users to engage in real-time communication, such as video calls and file transfers, using just a web browser, making it accessible and user-friendly. This technology is supported by major web browsers like Google Chrome, Mozilla Firefox, and Microsoft Edge. By using WebRTC, developers can create applications that facilitate seamless communication, enhancing user experiences in areas like online meetings, customer support, and social networking.