Create a lightweight, real-time cryptocurrency price tracking solution that provides instant market data without requiring users to navigate complex trading platforms or install heavy applications.

Built a responsive single-page web application that fetches live Bitcoin price data from CoinGecko API and displays it with automatic 10-second updates, providing traders and enthusiasts with instant access to critical market information.

Live Demo: bitcoin-streamer.replit.app

✅ Real-Time Price Updates - Auto-refreshing every 10 seconds with smooth animations ✅ Comprehensive Market Data - Current price, 24h high/low, market cap, and trading volume ✅ Visual Price Indicators - Color-coded percentage changes (green/red) for instant trend recognition ✅ Responsive Design - Fully optimized for mobile, tablet, and desktop viewing ✅ Error Handling - Graceful fallbacks with retry mechanisms for API failures ✅ Performance Optimized - Lightweight vanilla JavaScript with zero dependencies

Built with vanilla HTML5, CSS3, and JavaScript for maximum performance

Implemented async/await patterns for non-blocking API calls

Created custom number formatting functions for currency display (K/M/B notation)

Designed glassmorphism UI with CSS gradients and backdrop filters

CoinGecko API endpoints for comprehensive market data

Combined multiple API calls efficiently to minimize requests

Implemented rate limiting awareness (50 calls/min limit)

Built retry logic with exponential backoff for network resilience

Loading states with skeleton animations

Smooth color transitions on price changes

Relative timestamp display ("Updated 3 seconds ago")

Live status indicator showing connection state

This project showcases my ability to build production-ready web applications with clean, maintainable code. By focusing on performance and user experience, I created a tool that delivers real value to cryptocurrency traders while maintaining professional code standards and modern design principles.

The lightweight architecture and vanilla JavaScript approach demonstrate my understanding of web fundamentals and ability to build efficient solutions without over-relying on heavy frameworks.