Crazy Ninja Odds
The classic devigger plus free-bet and risk-free-bet calculators.
79/100 · #2 of 18 free betting tools
What you get free vs. paid
| Free | The classic devigger, hedge calculator, free-bet / risk-free-bet / odds-boost pages and more, no login shown. |
|---|---|
| Free trial | None listed |
| Paid | No paid tier listed. |
| Price (as shown) | Not listed |
| Checked | Oct 16, 2026 · source |
The catch
Site says it's still a work in progress; calculators are partly hosted on the older site. We haven't verified prop support or how much of the +EV and arbitrage pages is free.
Score breakdown
| How much is usable free | 35/35 | Everything is free (no paid tier, or the core product is free) |
|---|---|---|
| No signup / no card | 15/15 | Usable with no account |
| Data quality | 11/20 | Sharp/no-vig reference (7) · Works with any book (you enter odds) (4) · props: none (0) |
| Usefulness for +EV / line shopping | 8/15 | Supports the +EV workflow (devig, hedging, tracking, raw data) |
| Freshness | 10/10 | Calculator; worked on our check |
| Mobile app | 0/5 | Web only (or not verified) |
| Total | 79/100 |
Full listing with more detail: Crazy Ninja Odds on LineGoat.
Category: Free Calculators