YSNRFD Messenger
A modern, real-time messaging application built with the MERN stack (MongoDB, Express.js, React, Node.js) and Socket.IO.
🚀 Features
Core Messaging
- Real-time one-on-one and group messaging
- Read receipts and typing indicators
- Message status (sending, sent, delivered, read)
- Message editing and deletion
- Emoji reactions
File Sharing
- Image files with preview and download
- Audio files with built-in player
- Document files (PDF, TXT) with download
- File size validation and type checking
- Drag & drop file upload
User Experience
- Dark/Light theme support
- Responsive design for all devices
- Progressive Web App (PWA) support
- Auto-login with token persistence
- Online/offline status
- User search and contact management
Advanced Features
- Group chats with admin roles
- Invite links for group joining
- Message search and filtering
- File caching for offline access
- Real-time notifications
- Cross-device synchronization
🛠️ Tech Stack
Frontend
- React 18 with TypeScript
- Tailwind CSS for styling
- Socket.IO Client for real-time communication
- Vite for build tooling
- Lucide React for icons
Backend
- Node.js with Express.js
- Socket.IO for WebSocket communication
- MongoDB with Mongoose ODM
- JWT for authentication
- Multer for file uploads
📦 Installation
Prerequisites
- Node.js 16+
- MongoDB 4.4+
- npm or yarn
Backend Setup
cd backend
npm install
cp .env.example .env
# Configure your environment variables
npm run dev