Tutorials Projects

Build a Real-Time Chat Application with Node.js

A complete hands-on course for absolute beginners. You will build a real-time chat app with rooms, message bubbles, typing indicators, online users, and deployment to Railway. Every lesson includes full code, tips, common mistakes, and teaching notes — perfect for self-study or classroom instruction.

10 lessons Beginner Free

Prerequisites: Basic JavaScript, Node.js installed on your computer

Start lesson 1
Build a Real-Time Chat Application with Node.js tutorial

Course contents

Part 1 — Getting Started

1 Introduction — What We Are Building 5 min 2 Project Setup — Folder, npm & Dependencies 5 min

Part 2 — Build the App

3 Building the Server — Express & Socket.IO 5 min 4 Frontend HTML — Login Screen & Chat Layout 5 min 5 Frontend CSS — Modern Chat UI Design 5 min 6 Frontend JavaScript — Connect & Send Messages 5 min

Part 3 — Run, Learn & Extend

7 Running the App & Testing in Two Tabs 5 min 8 How Socket.IO Works — Deep Dive 5 min

Part 4 — Ship It

9 Bonus Features — Typing, Online Users & Timestamps 5 min 10 Deploy to Railway, Troubleshooting & Summary 5 min
Interview Q&A

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