Free blackjack tools.

Every tool we could reasonably build to help you play smarter - a full simulator, an interactive strategy chart, and the calculators that make the math obvious. Free, mobile-friendly, no signup.

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Blackjack Simulator

Single-hand play, mobile-friendly. Drill strategy without losing a cent.

Open
Basic Strategy ChartInteractive chart you can toggle between S17 and H17 dealer rules. Color-coded for fast lookup.Open Blackjack CalculatorEnter your hand and the dealer’s up-card. See the EV of every action plus win, push, and loss probabilities.Open Blackjack TrainerDrill basic strategy hand by hand. Random deals, instant grading, hard / soft / pairs filters.Open Blackjack Payout CalculatorEnter your bet, pick the payout (3:2, 6:5, 7:5, 2:1, 1:1), and see how much you win on a natural blackjack.Open
House-Edge CalculatorComing soonConfigure rules. See the resulting edge. Compare two rule sets side-by-side.
Bankroll CalculatorComing soonBankroll in, bet size in, session length in. Risk of ruin and expected duration out.

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