Spreadsheet Blackjack

Unblocked blackjack that looks like a spreadsheet. Hit, stand, double, split — played with keys, mouse, or touch. The boss key (press H) hides it all in an instant — and it auto-hides when you switch tabs, with a disguised tab title to match.

Looks like work. Plays like blackjack. Hide your game with a quick tap of the boss key. The best unblocked game for bored-at-work players.

Sharpen your skills with unlimited simulated hands. Test strategies and rule sets without risking a cent.

Casino-Accurate Rules

Match any casino's table rules: decks (1–12), splits up to 8 hands, doubles before or after split, DAS, re-split aces — all configurable.

DDM Variant

Double Down Madness: a genuine casino variant. Start with one card, double at will, hit after double. Dealer peeks for BJ; 22 pushes all.

Boss Key

Press H to instantly fill the grid with fake dollar amounts. It also auto-hides when you switch tabs or windows, and the browser tab title is disguised while hidden — an over-the-shoulder glance shows only a spreadsheet.

Card Counting Training

Seven counting systems (Hi-Lo, KO, Omega II, Hi-Opt I & II, Wong Halves, Red 7) with live running count, true count conversion, and count-based bet advice.

Saves Your Bankroll

Your session saves automatically in the browser. Close the tab mid-shift, come back after lunch, and pick up exactly where you left off — no account needed.

All gameplay runs client-side in your browser — no download, no account required. The spreadsheet layout lets you play unblocked and discreetly at work, at the office, or at school/university without drawing attention.

Is card counting legal?

Yes, card counting is legal. It only means remembering which cards have already been played. No law forbids it. A casino may still dislike it. The staff can refuse you service, back you off a table, or ban you from the building, and that is their right as a private business. Away from a casino there is nothing to worry about, which is why this site exists. You can learn to count cards at home for free with no real money on the table. Start with our blackjack rules and card counting guide.

Free blackjack online, right in your browser

The game starts instantly, with no download and no sign up. Play real hands: hit, stand, double, and split, with table rules you control, like the number of decks and whether the dealer hits soft 17. The running count and true count update on every card, so you practice the one skill that actually changes the odds. Press the boss key (H) and the grid fills with fake dollar amounts while the tab title switches to a work spreadsheet. Walk away and come back later: your bankroll and lifetime stats save in the browser automatically.

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