Blackjack Card Counter
Practise the Hi-Lo count, card by card
Set the deck count, then tap the cards of a hand you are replaying or studying — yours, the other players’ and the dealer’s. The counter does the Hi-Lo maths for you.
Tap each card of the hand
Running count
0
True count
0
Decks remaining
6
Cards seen: 0/312
Estimated edge
-0.5%
Suggested bet: minimum
Should you hit? Basic-strategy advice
Correct play
Stand
⚡ Count deviation (TC >= 0) — Basic strategy would: Hit
Basic strategy: multi-deck, dealer stands on soft 17. Deviations below adjust the play when the true count justifies it.
⚠️ A practice and study tool, not a playing aid: casinos do not allow counting assistance at the table, and using a counting device in a land-based casino is illegal in many jurisdictions. Online, continuous shuffling neutralizes counting anyway.
How it works
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Counter mode: set the deck count, then tap the cards of a hand you are replaying or studying.
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The Hi-Lo running count, true count and estimated edge update automatically.
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A strategy panel tells you to hit, stand, double or split — and adjusts with the count; Trainer mode drills your speed.
About this tool
Card counting isn’t about memorizing every card — it’s a simple running tally. In Hi-Lo, cards 2–6 count +1, 7–9 count 0, and tens through aces count −1. Instead of tracking it in your head, this tool lets you tap through the cards of a hand and does the Hi-Lo maths for you: running count, true count (adjusted for decks remaining) and the estimated edge that follows from it.
The strategy panel answers the other classic question — hit, stand, double or split — for any hand against any dealer upcard. It starts from perfect basic strategy but genuinely fluctuates with the true count: when the count crosses a key threshold it applies the most valuable Hi-Lo deviations (the “Illustrious 18”, e.g. standing on 16 vs 10 at TC ≥ 0, or taking insurance at TC ≥ +3) and flags the change. Read our card counting guide for the theory and the honest limits of the technique, especially online where continuous shuffling neutralizes it.
Training tool
This counter is built for practice away from the table — casinos do not allow counting aids during play. If you want to try blackjack for real, that happens on the casino side:
18+. Gambling involves risk — play responsibly.
Frequently asked questions
What is the Hi-Lo counting system?
The most-used card counting method: cards 2–6 count +1, 7–9 count 0, and 10 through ace count −1. You keep one running total; a high positive count means the shoe favors the player.
Does the trainer simulate a real shoe?
It deals independent random cards, which is ideal for drilling value recall and speed. Once you count a full 52-card deck to exactly zero in under 30 seconds, you are ready for shoe-based practice.
What accuracy should I aim for?
95%+ on your count checks before increasing the dealing speed. Speed without accuracy is worthless at a real table — one dropped card corrupts the whole count.
Is card counting illegal?
Counting in your head is legal everywhere. Land-based casinos may still refuse your action or ban you from blackjack, and counting devices or software are illegal in many places. Online, continuous shuffling makes counting ineffective.
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