Online Blackjack Card Game - Play 21
Play classic Blackjack against the dealer with a chip system, double down, and persistent stats. No download or sign-up required.
Runs in your browser. No data leaves your device.
Frequently Asked Questions
How do I play Blackjack?
A configurable shoe (1, 2, 4, or 8 decks) is Fisher-Yates shuffled and dealt from until a cut-card threshold triggers a reshuffle. Hand scoring automatically adjusts aces between 11 and 1 to avoid busting. A built-in basic strategy engine evaluates hard totals, soft hands, and pair splits against the dealer upcard. Optional Hi-Lo card counting displays the running and true count, with probability tables showing win/push/loss percentages.
What are the rules?
Try to get a hand value as close to 21 as possible without going over. Face cards are worth 10, aces are 1 or 11. Hit to draw another card, stand to keep your hand. Beat the dealer's hand to win.
Can I double down?
Yes. Double your bet and receive exactly one more card. This is a strategic move when you have a strong starting hand (like 10 or 11) and the dealer shows a weak card.
Are my chips and stats saved?
Yes. Your chip balance and win/loss statistics are saved in your browser. Come back anytime and continue from where you left off.