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LinkUp Real-Time
Encrypted Chat & WebRTC Video Calling Platform
Project Overview & Architecture
LinkUp is a high-performance real-time communication platform engineered with React.js, Tailwind CSS, Express.js, and Socket.IO. It implements AES-256 client-side encryption via Crypto.js, low-latency peer-to-peer video streaming with WebRTC, automated media compression with Cloudinary, and robust session authentication using JWT with secure HTTP-only cookies.
Key Technical Features
Real-Time Messaging with Socket.IO bidirectional channels
Dynamic Group Chats & Multi-user Channels
Peer-to-Peer Video Calling powered by WebRTC mesh signaling
End-to-End Encryption with Crypto.js (Client-side AES-256)
High-Performance Media & Asset Storage optimized with Cloudinary
Stateless JWT Authentication with Secure Session Cookies
Tech Stack
React.jsTailwind CSSNode.jsExpress.jsSocket.IOWebRTCCrypto.jsCloudinaryJWT
Performance Metrics
Latency:< 40ms
Security:E2EE Crypto
Signaling:WebRTC Mesh