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Blackjack IndexFree Online Blackjack Simulator & Strategy Lab

Free Online Blackjack Simulator & Strategy Lab

Free Blackjack Tools & Calculators

Use free blackjack strategy, odds, dealer, counting, house-edge, bankroll and long-run simulation tools in one educational hub.

Educational tools · Virtual credits · No real-money play

Simulate

Play complete rounds under documented table procedures.

Strategy

Read hard, soft and pair decisions in their rule context.

Strategy trainer

Choose on the table. Strategy, EV and the source explanation remain hidden until the action is committed.

Strategy checker

Basic strategy and the current-shoe benchmark are disclosed separately. A composition deviation never rewrites the source-policy grade.

Odds & bust

Inspect outcome ranges and the next physical card model on one compact evidence desk. Every number keeps its method, units and dataset identity visible.

Dealer odds

Probability describes a declared composition and method; it does not foresee a shuffled card.

House edge

Compare a canonical house edge per initial wager with element of risk per total amount wagered, while rules, strategy and shoe policy remain named.

Compare rules

Hold the shared scenario identity steady, change named rules and inspect the paired difference with interaction effects disclosed.

Counting trainer

Choose a documented system, follow the public card stream, and commit your answer before feedback appears. Practice history remains in this browser.

Running count

Choose a documented system, follow the public card stream, and commit your answer before feedback appears. Practice history remains in this browser.

True count

Enter the public running count, estimate the decks remaining, and inspect each step of the conversion. The selected rounding policy stays visible.

Counting systems

This calculator performs only the disclosed count conversion. It does not estimate an advantage, bet size, or outcome.

Risk of ruin

Set a virtual bankroll, wager size, session length, edge assumption, and repeatable seed. Compare outcome ranges without implying guaranteed returns.

Long-run simulations

Configure independent blackjack sessions, then inspect bankroll paths, drawdown, outcome ranges and convergence with the rules, seed and method kept in view.

Probability lab

Inspect outcome ranges and the next physical card model on one compact evidence desk. Every number keeps its method, units and dataset identity visible.