Real-time aggregated orderbook combining L2 order data from 7 crypto exchanges — Spot (Binance, Coinbase, Kraken, Bitstamp) and Perps (Binance Futures, Bybit, BitMEX) — into a single unified view. Each row shows total liquidity at a price level across all exchanges, with colored bars showing each exchange's contribution. Price levels are grouped into bins for readability.
Runs entirely in your browser — direct WebSocket connections to each exchange, no backend needed. Zero dependencies, 16KB bundle.
Also available as a CLI tool:
bun run src/cli.ts BTC — run
--exchange=binance for a single exchange or
--depth=30 for more levels.
Source on GitHub · Vibe-coded in an afternoon with Claude.