Built by players, for players

The Blackjack Trainer for basic strategy & Hi-Lo counting.

Practice real blackjack hands with live strategy feedback, Hi-Lo counting, deviations, bankroll tracking, and table rules tuned to the game you want to beat.

Start Playing Play Ranked
  • 100% Free
  • No signup to play
  • Weekly Challenge
  • All charts + deviations
  • Optional cloud sync
  • Works on mobile
blackjacktrainer.fyi / trainer
Blackjack Trainer in play: dealer 9, player 15, Hit highlighted, with running count +1 and true count 0 in the discard tray.
See it in action

Everything you need on one felt.

Live charts, a mistakes log that explains every missed play, card counting with RC/TC readouts and a real discard tray, streak milestones, and between-hand count quizzes — all inside the same table.

Accuracy summary bar showing hard 91%, soft 89%, pairs 86%, and deviations 50% at a glance.

One glance tells you where you stand across hard totals, soft totals, pairs, and count-based deviations — while the Records view breaks down how you perform by true-count bucket.

Strategy · Charts
Strategy charts panel showing Hard Totals heatmap with trouble-spot pills and deviation plays.

Live charts with trouble spots

Accuracy across hard totals, soft totals, pairs, and deviations at a glance — with your worst plays surfaced first.

Strategy · Mistakes
Mistakes log listing misplayed hands with your action, the correct action, and a one-line explanation for each.

Every mistake, explained

Each misplayed hand gets a short, plain-English reason — so you stop guessing and start knowing why the right play is right.

Discard tray on the felt with a stack of played cards growing inside, used to estimate decks remaining alongside live running-count and true-count readouts.

Count cards like you're at a real table

Live running count and true count read out beside the shoe, and deviations kick in when the count calls for them. The discard tray fills with every played card so you can eyeball decks remaining by sight — the same skill a real table demands.

See why the count matters

Auto bet spread turns the live true count into wager size, so you can feel the upside of advantage play before you've mastered every betting decision yourself. Watch high counts press the bet, cold shoes stay small, and bankroll swings reveal why disciplined counting is worth learning.

Settings · Auto Bet Spread
Auto Bet Spread settings panel showing preset buttons, spread summary chips, and a true-count ramp for configuring bets by count.
Celebration banner that fires when you beat your all-time perfect-play streak record.

Streaks, milestones & records

Flawless-play streaks climb with every correct decision, hit milestone tiers, and celebrate when you break your all-time best.

Between-hands count quiz asking for the current true count, with three multiple-choice answer buttons.

Count quizzes, between hands

Running count, true count, or decks remaining — the game quizzes you on the fly so the count sticks while you're actually playing.

Ranked Challenge · This week
Ranked Challenge table at the start of a run: $100,000 bankroll, the week's ruleset locked at 6D / H17 / DAS / late surrender / 3:2, with the discard tray and chip rail ready.

Ranked Challenge — put your skills on the line

Take on a fresh weekly ruleset with the same $100,000 bankroll as everyone else. No HUD, no hints, no auto-bet — just your decisions at the table. Biggest bankroll wins, and when the week closes you can review and practice your lowest-accuracy hands.

Climb the global Top-50

String together a serious streak and your spot is saved with an auto-generated name. Add a custom name anytime. Tiered styling for the top ranks, plus weekly Ranked and streak badges for gold, silver, and bronze finishes.

Top-50 leaderboard
Global Top-50 leaderboard ranked by perfect-play streak, with tiered styling for the top ranks.
Weak-spot drill
Weak-spot drill screen showing the current trouble cell, the dealt hand, and a Hit/Stand/Double/Split action bar with progress through the rotation.

Drill the cells you keep missing

The trainer watches your mistake history and assembles a rotating drill of your weakest cells — hard totals, soft totals, pairs, surrender, and Hi-Lo deviations if you have them turned on. No bankroll, just reps where you actually need them.

An interactive strategy reference

Learn includes every perfect basic-strategy chart for 1D, 2D, and shoe games across H17/S17 rules, plus rule-aware Hi-Lo deviation sets. Move the true count to see which count-based plays are active before you memorize or test them.

Learn · Perfect Strategy
Learn page showing rule-aware perfect strategy charts, TC preview, and highlighted active Hi-Lo deviations.
How it works

Three steps to sharper play.

Set your house rules

Decks, H17/S17, DAS, surrender, resplit aces, 3:2 or 6:5 — match the exact table you want to beat.

Play real hands

Deal, bet, split, double, and surrender at a realistic shoe. Every action is graded against the exact chart and deviation rules for that table.

Level up the count

Turn on the Hi-Lo HUD or the count quiz, enable Illustrious 18 deviations, and track your accuracy over time.

Features

Everything a serious player needs.

One tool for strategy, counting, deviations, and bankroll — no scattered apps.

Real blackjack, real practice

Deal full hands, place real bets, or let auto bet spread size wagers from the live true count — with strategy feedback on every action.

Sit at the table

Ranked Challenge — weekly

A fresh casino-style ruleset every week and $100,000 to grow. Play as many hands as you want before the week closes — biggest bankroll wins.

Enter this week

Complete strategy library

Look up every perfect basic-strategy chart for 1D, 2D, and shoe games across H17/S17 rules, plus rule-aware Hi-Lo deviation sets.

Open Learn
FAQ

Common questions.

Quick answers. Still curious? The charts and settings panels are the best tour.

Is the blackjack trainer really free?
Yes. No ads, no in-app purchases, and no paid features. Everything runs in your browser.
Do I need to sign up or install anything?
No install, and no signup to play. Open the site, hit Start Playing, and your settings, stats, and bankroll save locally in your browser.
Does it work on mobile?
Yes — built mobile-first with a drag-to-dismiss bottom sheet, large count chips, and a reverse-action-bar option for thumb reach. Deal speed is adjustable everywhere. Desktop is still the richest experience.
Can I customize house rules?
Yes. Number of decks, dealer hits or stands on soft 17, double after split, late or early surrender, resplit aces, hit split aces, blackjack payout (3:2 or 6:5), penetration, and table min/max are all configurable.
Does it include every basic strategy chart?
Yes. The trainer and Learn page both use every perfect basic-strategy chart for 1D, 2D, and shoe games across H17/S17 rules. Learn also includes large rule-aware Hi-Lo deviation sets, and TC preview shows which count-based plays are active.
Which card counting system does it teach?
Hi-Lo, the most popular balanced system. The trainer shows both running count and true count, and can quiz you on either plus decks remaining.
How can I practice deviations?
Turn on Deviation practice to drill enabled index plays and insurance. Choose exactly which deviations are enabled, so you can learn a few at a time instead of taking on the whole set at once. Memorize mode always deals spots where the deviation applies; Test mode mixes in counts where basic strategy is still correct, so you have to know when to deviate and when not to.
Can it show how the count affects bet sizing?
Yes. Auto bet spread can turn the live true count into wager size each betting round. It is meant to show the payoff loop — high counts press the bet, cold shoes stay small, and bankroll swings make the benefit of disciplined counting easier to feel while you learn.
Can I sync my progress across devices?
Yes — sign in with Google and your training history, bankroll, settings, and custom leaderboard name follow you across devices. It's optional; anonymous play works the same.
What is the Ranked Challenge?
A weekly competition with a fresh ruleset and the same $100,000 starting bankroll for everyone. No count display, no hints, no feedback, no auto-bet — just your decisions at the table. Biggest bankroll wins, and when the week closes you can review and practice your lowest-accuracy hands.
Is there a leaderboard?
Yes — a global Top-50 ranked by perfect-play streak and accuracy. You start with an anonymous auto-generated name. Sign in to choose a custom name; renames are limited to once per hour. Top ranks get tiered styling, and your rank stays pinned at the top — tap it to jump to your row.
What is the weak-spot drill?
A focused practice mode that watches your mistake history and rotates the cells you miss most often — hard, soft, pairs, surrender, and Hi-Lo deviations if you have them turned on — so you train where it matters.

Ready to play a hand that actually teaches you something?

Perfect basic strategy, Hi-Lo counting, and deviations — graded live at your own table.

Deal me in Browse Learn
  • No signup to play
  • Runs in your browser
  • Optional cloud sync