Design Video Conferencing System like Zoom
Last Updated: December 29, 2025
What is a Video Conferencing System?
A video conferencing system enables real-time audio and video communication between multiple participants over the internet. Users can join meetings, share their screens, exchange messages, and collaborate remotely.
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The core challenge is delivering low-latency, synchronized audio and video streams to potentially hundreds of participants while handling varying network conditions, device capabilities, and geographic distribution.
Popular Examples: Zoom, Google Meet, Microsoft Teams, Webex
This system design problem tests your understanding of real-time communication protocols, media streaming architectures, and scaling strategies for latency-sensitive systems.
In this chapter, we will explore the high-level design of a video conferencing system like Zoom.
Lets start by clarifying the requirements.