At the heart of online blackjack's functionality is a technology known as the Random Number Generator (RNG). RNGs are complex algorithms used by online casinos to ensure that the outcome of each hand is entirely random and unbiased.
Blackjack Variation
Odds
House Edge
Face Up 21
1:1
0.85%
Free Bet
3:2
1%
Online  Video Blackjack
1:1 or 3:2
0.5% and 2%
Online  Live Dealer Blackjack
3:2
0.49% and 0.72%