The technology that allows for simultaneous communication between multiple users in real-time is known as WebRTC (Web Real-Time Communication). This open-source project enables peer-to-peer audio, video, and data sharing directly in web browsers without requiring additional plugins. WebRTC facilitates real-time communication in applications such as video conferencing, online gaming, and virtual collaboration tools. By providing essential APIs and protocols, WebRTC enhances user engagement and interactivity, making it a crucial technology in the evolution of web-based communication and collaboration platforms.