NOTE: This project is currently running on Render’s free tier, so the server may sleep when inactive.The first load can take a short time to initialize, after which performance is normal.

🛠️ Tech Stack

Frontend: React, Zustand, TanStack Query, Axios
Backend: Node.js, Express, Socket.io
Database: MongoDB + Mongoose
Real-Time: WebRTC + Socket Signaling
Auth: JWT 
Deployment: Render.com

⭐ Key Features

• Real-time Chat with Socket.io (instant messaging with reply threading)
• Video & Audio Calling using WebRTC
• Screen Sharing during call sessions
• Friend Request System with accept/decline flow
• Customizable UI Themes (7 theme variations)
• JWT Authentication & Protected Routes
• State Management using Zustand
• Server & Client Communication via Axios & TanStack Query
• Optimized WebRTC Signaling for Reliable Media Streams
• Mobile & Desktop Responsive UI

🚀 Scalability & System Highlights

• Designed to handle millions of concurrent socket connections
• Horizontal scaling friendly with Redis or clustered processes
• Efficient MongoDB queries with Mongoose models
• WebRTC P2P media reduces server bandwidth usage
• Real-time delivery optimized for low latency communication