Online blackjack
The rule variations that actually move the house edge, and where to find fair tables.
Where to find solid tables
Of the casinos we've reviewed, these two run the most consistent blackjack tables at fair rule sets:
The rule differences that actually matter
Blackjack's house edge is unusually sensitive to a handful of specific rules, more so than most casino games. A table paying 3:2 on a natural blackjack has a meaningfully lower house edge than one paying 6:5 for the same hand — always check this before you sit down, since it's often buried in the table info screen rather than advertised. Deck count and whether the dealer stands or hits on a soft 17 matter too, though less dramatically than the payout ratio.
Popular blackjack variants you'll find in our reviewed lobbies
The studios that build them
Basic strategy still applies
Basic strategy — the mathematically optimal play for every hand-versus-dealer-upcard combination — reduces the house edge to under 1% at a well-configured table, and it applies identically online. Most licensed casinos allow strategy charts to be used openly at RNG tables; live-dealer tables sometimes restrict outside apps during play, so check the table rules first. This is the standard chart for a typical multi-deck game where the dealer stands on soft 17 — the most common rule set at the casinos we review.
| Your hand | Correct play |
|---|---|
| Hard 17–21 | Always stand |
| Hard 13–16 | Stand vs. dealer 2–6, hit vs. 7–Ace |
| Hard 12 | Stand vs. dealer 4–6, hit vs. everything else |
| Hard 11 | Double vs. dealer 2–10, hit vs. Ace |
| Hard 10 | Double vs. dealer 2–9, hit vs. 10 or Ace |
| Hard 9 | Double vs. dealer 3–6, hit otherwise |
| Hard 8 or less | Always hit |
| Soft 19–21 (A,8 / A,9 / A,10) | Always stand |
| Soft 18 (A,7) | Double vs. dealer 3–6, stand vs. 2, 7 or 8, hit vs. 9–Ace |
| Soft 13–17 (A,2 through A,6) | Double vs. dealer 4–6 (soft 15–17) or 5–6 (soft 13–14), hit otherwise |
| Pair of Aces | Always split |
| Pair of 8s | Always split |
| Pair of 10s / face cards | Never split — stand |
| Pair of 5s | Never split — play as hard 10 |
| Pairs of 2, 3, 6, 7, 9 | Split against a favourable dealer upcard (roughly 2–7), otherwise play as the equivalent hard total |
This covers the decisions that come up most often. A small number of edge cases (exactly when to split 4s, 6s, 7s, and 9s against specific upcards) vary slightly with the exact rule set at the table — the info screen on any of the tables we review will confirm the house rules before you sit down.
Live dealer vs. RNG blackjack
- Live dealer: real pace, real dealer, higher table minimums, genuinely social if you enjoy that
- RNG: instant deal speed, lower minimums, available at any hour without a live table needing to be open
Side bets and mobile play
Side bets like Perfect Pairs or 21+3 sit on top of the main hand and almost always carry a much higher house edge than the base game — they're a volatility choice, not a value one, and basic strategy has nothing to say about them since they're independent wagers. On mobile, the game itself doesn't change, but table layout and bet-sizing controls do: a cramped screen makes it easy to mis-tap a double-down when you meant to hit, so it's worth playing a few low-stakes hands on a new app before betting seriously. Insurance is the other bet worth understanding on its own terms — it's offered when the dealer shows an ace, and basic strategy says to decline it almost every time, regardless of your own hand, because the payout doesn't cover the odds against a dealer blackjack. Card counting, the technique most associated with beating blackjack long-term, is largely a non-factor online: RNG tables reshuffle every hand by definition, and even live-dealer tables typically use continuous shuffling machines or reshuffle well before a deck runs deep enough to count reliably. That doesn't make basic strategy pointless — it's still the single biggest lever you control — it just means the "advantage play" angle that works at some physical casinos doesn't translate to the online game the same way.
Deck count also affects the edge more than most players realize: Double Deck and Single Deck blackjack, both listed among the popular variants above, generally carry a slightly lower house edge than an 8-deck shoe under otherwise identical rules, since fewer decks change the odds of the specific card combinations basic strategy is built around — part of why it's worth seeking out the single-deck table specifically rather than defaulting to whichever one loads first. Re-splitting pairs (splitting a hand a second time after it's already been split once) is permitted at some tables and not others, and the same goes for doubling down after a split — both rules shift the edge slightly in the player's favour when allowed, so it's worth reading the table's own rule sheet rather than assuming every blackjack table plays identically just because the core rules look the same on the surface.
Frequently asked
Does basic strategy actually work online?
Yes — basic strategy is a mathematically optimal set of decisions for standard blackjack rules, and it works identically whether you're at a physical table or an online one, live-dealer or RNG.
What rule variations should I check for?
Whether blackjack pays 3:2 or the worse 6:5, how many decks are in play, and whether the dealer stands or hits on a soft 17 — all of these shift the house edge, sometimes significantly.
Is online blackjack rigged toward the dealer?
At a licensed casino, no — standard blackjack rules and house edge apply the same way online as at a physical table. Verify the operator's licence before playing, which is the first thing our methodology checks.
Live dealer or RNG blackjack — which is better?
Neither is mathematically better if the rules are identical; it comes down to preference for pace and realism (live) versus speed and lower table minimums (RNG).