🪙 Crypto Portfolio Tracker

A lightweight React app for tracking your crypto portfolio with live prices from Binance WebSocket.

Features

• ✅ Live prices via Binance WebSocket (updates every second)
• ✅ Add / edit / remove holdings
• ✅ Track avg buy price & quantity
• ✅ Live P&L (profit/loss) in $ and %
• ✅ Total portfolio summary
• ✅ Flash animation when prices change
• ✅ Sort by value, P&L, or name
• ✅ Data persists in localStorage
• ✅ 20 supported coins

Supported Coins

BTC, ETH, SOL, BNB, XRP, ADA, AVAX, DOT, MATIC, LINK, LTC, UNI, ATOM, DOGE, SUI, APT, OP, ARB, NEAR, ICP

Setup

npm install
npm start

The app opens at http://localhost:3000

How It Works

• Prices stream via Binance WebSocket (wss://stream.binance.com)
• Requires internet connection for live prices
• All portfolio data is saved locally in your browser (localStorage)
• No API key needed — uses public Binance endpoints