Tag: Real-time Messaging

All the articles with the tag "Real-time Messaging".

• System Design Interview: Design WhatsApp Chat System

  14 Feb, 2026

  By Pratik Bhuite | 9 min read

  Series: System Design Interview Series

  Learn to design a scalable chat system like WhatsApp. Covers real-time messaging, WebSocket, last seen details, and end-to-end encryption.

  • System Design Interview
  • System Design
  • Distributed Systems