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Spreader is a web service for finding and following arbitrage spreads between crypto exchanges. It watches the same asset on different exchanges and shows where the price or the funding rate differs, how big the difference is after fees, and how long it has been there.

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What it does

  • Tracks spreads live. Quotes from 24 exchanges are compared continuously. Every row in the scanner updates as new prices arrive.
  • Compares only identical assets. A spread is always between the same coin or token on two venues, for example WBTC on Binance against WBTC on Bybit. Different assets are never compared with each other.
  • Counts fees. Every spread is shown as gross (raw price difference) and net (after taker fees on both legs). The net value is the one that matters for a trade.
  • Keeps history. Each spread page shows how the spread moved over time, so you can tell a stable opportunity from a one second spike.
  • Sends alerts. Rules watch the scanner for you and deliver messages to Telegram, Pushover or the browser when a spread crosses your threshold.

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Exchanges

Binance, OKX, Bybit, Gate, Bitget, KuCoin, MEXC, HTX, BingX, Kraken, WhiteBIT, Coinbase, Hyperliquid, AsterDEX, edgeX, Extended, Nado, Lighter, GRVT, Bulk Trade, plus Binance Alpha and the tokenized stock markets of Gate and Bybit.

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Who it is for

Traders who run cross exchange strategies by hand or half by hand: spot against perpetual, perpetual against perpetual, funding capture, spot against margin short. Spreader finds and measures the opportunity. Entering and leaving a position is your decision.

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What it is not

Spreader is not a trading bot and does not move funds. It does not promise that a spread shown on screen can be executed at that price. Liquidity, slippage, withdrawal limits and exchange rules are yours to check.