#P2P

May 8, 2025

WebRTC vs WebSockets: A Comparison for Real-Time Communication

WebRTC and WebSockets are distinct technologies, although they are often used together, particularly in applications requiring real-time communication on the web. Web Real-Time Communication (WebRTC) is both an open-source project and specification designed to enable real-time media communications like voice, video, and data transfer natively between browsers and devices without requiring plugins or additional hardware. It focuses on peer-to-peer connections and handles complex tasks such as accessing devices, managing peer connections, and network traversal. WebSockets, conversely, provides a persistent, bidirectional, full-duplex communication channel over a single TCP connection between a web client and a web server. This makes it ideal for use cases requiring low-latency, event-driven message exchange, such as realtime data synchronization, chat, and in-app notifications. While WebRTC is built for media and peer data streams, it doesn't include a signaling mechanism itself and often relies on technologies like WebSockets or HTTP for the initial process of setting up the peer connection. In most applications that use WebSockets, WebRTC is not needed, but most WebRTC applications will also utilize WebSockets.