A crypto arbitrage scanner watches the same coin across many exchanges and flags price gaps you can capture. The hard part is not finding a spread — it is finding one that is still profitable after withdrawal fees, gas, and the time it takes to move funds. Below we compare the best free and freemium scanners in 2026 on the things that actually matter.
What separates a good free scanner from a useless one
- Real net profit, not raw spread. A 2% gap means nothing if the withdrawal fee eats 2.5%. The scanner must subtract fees.
- Live data. Spreads close in minutes; a table refreshed every hour is a museum exhibit.
- Route availability. If the network is in maintenance you cannot move the coin — the "opportunity" is fake.
- CEX and DEX coverage. The biggest gaps often involve a DEX leg (STON.fi, Jupiter).
- Alerts. You will not stare at a screen all day; you need a push when a spread opens.
The comparison
1. Yieldo — best free scanner overall
Yieldo's arbitrage scanner is fully free with no sign-up. It tracks 7 CEX (Binance, Bybit, OKX, MEXC, Bitget, Gate.io, KuCoin) plus 2 DEX (STON.fi, Jupiter), refreshes spot prices every minute, and — crucially — shows net profit after withdrawal fees and DEX gas in a built-in calculator. It marks order-book depth and whether the withdrawal route is open, and pushes Telegram alerts when a spread opens. It also covers funding rate arbitrage for delta-neutral yields.
2. ArbitrageScanner.io — widest coverage, but paywalled
75+ CEX and 25+ DEX with spot and DEX arbitrage. Coverage is excellent, but the useful features sit behind a $69–795/month paywall, so it is not a free option in practice.
3. CryptoArbitrageScreener — freemium with a spread cap
Solid CEX coverage, but the free tier caps the spreads you can see (e.g. up to ~1.25%) and lacks DEX and funding arbitrage.
4. CoinGlass — great for funding, not spot
The go-to for funding rates across exchanges, but it does not do spot arbitrage and has no net-profit-after-fees calculator.
5. Free regional bots (e.g. Spread Sniper)
Free and fast for CEX spot spreads, but typically no DEX support, no withdrawal-fee calculation, and limited English/SEO depth.
See live spreads right now
| Coin | Buy On | Sell On | Spread | Action |
|---|---|---|---|---|
| ESPORTS HOT | Gate.io $0.021790 | MEXC $0.028740 | 31.90% | |
| RVN HOT | Gate.io $0.002917 | MEXC $0.003589 | 23.04% | |
| RVN HOT | KuCoin $0.002920 | MEXC $0.003589 | 22.91% | |
| RVN HOT | OKX $0.002924 | MEXC $0.003589 | 22.74% | |
| RVN HOT | Bitget $0.002930 | MEXC $0.003589 | 22.49% | |
| RVN HOT | Binance $0.002930 | MEXC $0.003589 | 22.49% | |
| RVN HOT | Bybit $0.002939 | MEXC $0.003589 | 22.12% | |
| XRD HOT | MEXC $0.000554 | Gate.io $0.000670 | 20.99% | |
| POWER HOT | BingX $0.083180 | Gate.io $0.099750 | 19.92% | |
| POWER HOT | MEXC $0.083550 | Gate.io $0.099750 | 19.39% |
Estimate your net profit at different position sizes with the calculator below:
Profit Calculator
Calculate your potential profit from current arbitrage opportunities
| Coin | Buy On | Sell On | Spread | Gross Profit | Net Profit | Action |
|---|
How to actually profit (not just spot a spread)
Always work from net profit, not the headline percentage. Check that the withdrawal route is open on both legs, confirm order-book depth can absorb your size, and move fast — spreads decay. For a deeper walkthrough, see our comparison of arbitrage types and the guide to transferring crypto between exchanges cheaply.