Tools
Check the math
before you deposit.
Free tools that answer the questions casinos would rather you didn't ask: what a bonus is really worth, what your rakeback should be paying, and whether a "provably fair" roll was actually fair.
Rakeback calculator
What should your play pay back?
CASINO
YOUR WAGER ($)
GAME TYPE
EXAMPLE OUTPUT — WAGER × EDGE × SHARE ÷ 2. GOES LIVE WITH THE FIRST PUBLISHED SPLITS.
Bonus reality check
Is that "200% bonus" worth anything?
BONUS VALUE ($)
WAGER REQUIREMENT
AVG HOUSE EDGE OF ELIGIBLE GAMES
EXAMPLE OUTPUT — A 40X REQUIREMENT AT 2.5% EDGE COSTS MORE THAN THE BONUS IS WORTH. THAT'S THE POINT.
Provably-fair verifier
Re-roll the outcome yourself
After a casino reveals its server seed, paste it with your client seed and the bet's nonce. We recompute the result in your browser using the published HMAC-SHA256 scheme — nothing is uploaded. If our number doesn't match the outcome you saw, the round wasn't fair.
Roll 0.00–100.00. Bet over/under a target.
THE PROVABLY-FAIR VERIFIER IS LIVE AND FULLY FUNCTIONAL (STAKE-STYLE HMAC-SHA256, DICE / LIMBO / ROULETTE / RAW FLOATS). THE RAKEBACK AND BONUS CALCULATORS ABOVE ARE UI PREVIEWS — THEIR ENGINES SHIP WITH THE DATA PIPELINE.