Best Online Blackjack Sites UK

Blackjack, also commonly referred to as 21, is widely considered the world’s most popular casino game. It’s fun, easy to learn, and with a little bit of simple strategy and practice, players can reduce the house’s edge making it one of the more winnable games at the casino. There are several variations of Blackjack available to play, especially when playing online.

The slightest of rule changes can change a player’s odds against the dealer and it’s important to know what options you have when picking a casino. Here at CasinoSource, we’ve compiled a ranked listing of our preferred Blackjack destinations based on things such as game variations, graphics, gameplay and any other unique characteristics that may affect your experience at the table. Find your table below and start winning big!

We only feature websites and apps that are fully regulated and legal in the UK. Terms and Conditions apply for all bonuses. Must be +18 to participate.


Top Recommended Casinos

Casino ProviderBonus OfferReview
120 Extra Spins on Starburst!
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18+. New depositors only. UK residents only. Minimum deposit £10. Free Spins are valid only on Starburst and expire in 7 days. 10x wagering apply. Certain deposit types are exlcuded. Gamble responsibly. www.begambleaware.org

200% Welcome Bonus up to £500 + 50 Extra Spins
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18+. New players only. Min. deposit £20. BeGambleAware.org

100% up to £150 + 100 Spins
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Terms and Conditions apply. New players only. 18+. Min deposit £20. Max bonus £150. Wagering requirement apply 35x.

100% up to £100 + 10% Cashback
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18+ Only Welcome Bonus for new players only | Max bonus is 100% up to £100 | No Max cash out | Wagering is 35x Bonus | Max bet while playing with a bonus is £5 | Cashback is cash with no restrictions | Bonus excluded for players that deposit with Skrill or Neteller | Full T & C's Apply | Begmbleaware.org

200% Match Bonus up to £400 + 50 Extra Spins
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Welcome offer is valid to new players only (& the first 3 deposits). Min. deposit of £20 required. 18+ T&C's apply. BeGambleAware.org

100% Welcome Bonus up to £300 + 100 Zee Spins + 500 Zee Points!
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18+. New players only. Valid for 15 days after 1st deposit. Min Deposit £20 Max Bonus Bet £5 Winnings from spins capped at £50 First 100 Zee spins: 10/day. Spins must be used within 24 hours, Funds within 30 days. Bonus funds are separate to Cash funds, and are subject to 35 wagering (bonus + cash). 18+. T&Cs apply. BeGambleAware.org

100% First Deposit Bonus up to £300 + 300 Extra Spins!
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18+ New players only. Full T&C's Apply. New players Only. £10 minimum deposit. 40x wagering applies. Bonus valid for 14 days. Min. £5 wager required to activate 300 Free Spins. 30 Free Spins released over 10 consecutive days after qualifying deposit/wager is met. Free Spins valid for 72 hours. Gamble responsibly. www.begambleaware.org

100% up to £200 Bonus + 25 Spins
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New players only. £20 min deposit, excluding deposits by Skrill or NETELLER. Get 100% up to £200 Bonus and 25 Free Spins [FS]. FS valid on selected games & expire in 14 days. FS wins credited in bonus. Bonus wins are capped at £500. To withdraw bonus & related wins, wager 30 x (bonus amount) within 90 days. Wagering req. vary by game. This offer may not be combined with any other offer. Deposit balance is available for withdrawal at any time. General withdrawal restrictions & full T&Cs apply.

Get up to a £500 Blackjack Bonus
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New customers only. 1x turnover on SN Blackjack to receive bonus. 40x wagering of deposit + Bonus when released. 30 days to complete wagering. Wagering/game restrictions apply, please see below for full details. 18+. BeGambleAware

100% up to £300 Bonus + 300 Extra Spins
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18+ Full T&C's Apply. New players Only. £10 min deposit. £5 max bet using bonus. 40 x wagering applies. Bonus valid for 14 days. 30 Spins on pre-selected games will be credited instantly + then 30 per day for 9 days. Free Spins valid for 72 hours from credit. Max Free Spins winnings £100. Skrill + Neteller excluded. Always refer to Bonus Terms - www.begambleaware.org

300 Cash Spins on your First Deposit!
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Valid for new players registering from 01/08/2019 to 30/09/2019. Must be claimed within 35 days of account creation. Max credited Starburst Cash Spins = 300. Only available on First Deposit. Deposit needs to be wagered at least once. Min first dep of £20 required. For every £10 deposited on first deposit, 10 Cash Spins will be awarded. No wagering on Cash Spins winnings. Max winnings from Cash Spins is £300. Neteller & Skrill deposits excluded. Cash Spins must be used within 7 days of being granted . Listed gameplay is excluded on first deposit when opting in for casino welcome offer. Further T&Cs apply

100% up to £800 + 100 Extra Spins!
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Min. deposit: €20. Offer valid on first deposit. Offer only applies to new players. Bonuses that require a deposit must have the bonus wagered 35 times. Winnings won with extra spins that require a deposit, have to be wagered 35 times your extra spins winnings, unless stated otherwise. Bets on different games contribute differently to the compliance of the wagering requirements: Wagering Bonus Policy Min. deposit: £20. Max. bonus: £850. 18+ T&C's Apply

100% Match Bonus up to £100 + 25 Bonus Spins!
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18+. New players only. One bonus offer per player. Min deposit £20 Max bonus bet £5 Offer is a 100% deposit match up bonus to £100 plus 25 bonus spins on Aloha! Cluster Pays. Bonus spins winnings are credited in form of bonus funds and are capped at £50 Bonus funds are separate to Cash funds and are subject to 35x wagering the total of cash + bonus funds. Only bonus funds count towards wagering contribution. Once claimed, funds must be used within 30 days, spins within 10 days, otherwise any unused shall be removed. Terms apply. BeGambleAware.org

Deposit £100, Play with £200 + 50 Extra Spins!
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18+ New Players only. Gamble responsibly. www.begambleaware.org

100% First Deposit Bonus up to £200 + 50 Extra Spins!
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18+ New Players only. Gamble responsibly. www.begambleaware.org

200% Welcome Bonus up to £500 + 100 Extra Spins!
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18+ New Players only. T&C's Apply. Gamble responsibly. www.begambleaware.org

100% Deposit Bonus up to £100
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18+. Minimum deposit: £20. 100% bonus up to £100 valid on first deposit only. Wagering on bonus: 80x. Wagering must be completed within 30 days. Max bonus bet £5. Bonus is valid for a total of 21 days. Game weighting, payment method and standard bonus terms apply.

Double Your First up to £250 + Get 10 Big Spins
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18+. New customers only. £10 minimum deposit. Bonus carries 40x play through in 14 days. Big spins on Starburst. Spins carry 5x play through in 3 days. Live Casino excluded. Paypal, Moneybookers, Skrill and Neteller payment methods are excluded. T&Cs apply. begambleaware.org

Get up to 50 Extra Spins on your First Deposit!
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18+ Only | | 50 Free Spins on Book of Dead | Min. deposit is £10. This offer is only available for first time depositors | Also after your First Deposit you may claim an additional 30 Free Spins by visiting the Kicker Section | Game: Book of Dead | Spin Value: £0.10 | OJO’s Rewards and Game Play policy applies | T&C's Apply

100% Bonus up to £50 + 50 Extra Spins on Book of Dead
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18+ new players only. Maximum £50 bonus. Minimum deposit: £20. Max bet with active bonus: £2. Wagering requirement 100% match bonus: 30 times sum of deposit + bonus. Winnings from Free Spins are credited as Real Money. Some games may not be played with an active bonus. Games may contribute differently when wagering a bonus. Bonus expires after 30 days if wagering requirement has not been met. One bonus allowed per person, address, device, IP. Bonus Winnings capped at £500. Full T&Cs apply. BeGambleAware.org

10% Cashback, No Strings Attached
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10% Cashback, No Strings Attached! No Bonus Casino offers an unique service of 10% cash back to all our appreciated players. This ensures that you will not be down and out after you played through your last deposit.

121% First Deposit Bonus up to £300
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18+. New players only. Minimum deposit of £10. Bonus funds are 121% up to £300 and separate to Cash funds. 35x bonus wagering requirements. £5 max bet with bonus. Bonus must be used within 30 days otherwise any unused bonus shall be removed. Terms Apply. Gamble responsibly. www.begambleaware.org

100% match up to £200
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18+ new customers only. 100% Bonus up to £200 on first deposit only. Min Dep £10, Max bonus £200, 40x wagering, Max 5x conversion. Full T&Cs apply.

100% Welcome Bonus up to £500 + 50 Extra Spins!
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18+.T&C Apply. Gamble responsibly. Begambleaware.org

100% Match Bonus up to £500 + 50 Extra Spins
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18+. New players only. 1 bonus offer per player. Min. deposit £20, Min withdrawal from cash funds is £20. Max bonus bet £5. Extra spins on selected games only- must be used within 72 hours. Bonus funds expire in 30 days, unused bonus shall be removed. Bonus funds are 100% match up to £500 + 30 extra spins on 1st deposit, 25% match up to £800 + 25 extra spins on 2nd deposit, and 50% match up to £200 + 50 extra spins on 3rd deposit. Bonus funds are separate to Cash funds, and are subject to 40x wagering the total bonus, cash & extra spins. Terms apply. BeGambleAware.org.

100% Match Bonus worth up to £200 + 200 Extra Spins!
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18+ New players Only. £10 minimum deposit. 40 x wagering applies. Bonus valid for 14 days. Minimum £5 wager required to activate 200 Free Spins. 20 Free Spins will be credited per day for 10 days after qualifying deposit/wager is met. Free Spins valid for 72 hours from credit. T&C Apply. Gamble responsibly. www.begambleaware.org

Up to 100 Extra Spins & up to 200% First Deposit Match!
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18+. New players only. Up to 10 (20p) free spins on Super Win 7s for 10 days. Winnings paid as bonus credit. Expire 00:00 every day. Max withdrawal from free spins bonus winnings £200. Up to 200% deposit match of first deposit (Min £10). Max £100 awarded as bonus credit. 20X wagering on bonus credit. Withdrawing Unspent Qualifying Deposit will exclude the player from these promotions. T&Cs apply. BeGambleAware.org Full T&Cs Apply

100% First Deposit Bonus up to £100 + 300 Extra Spins!
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18+ New players Only. £10 minimum deposit. 40 x wagering applies. Bonus valid for 14 days. Minimum £5 wager required to activate 300 Free Spins. 30 Free Spins will be credited per day for 10 days after qualifying deposit/wager is met. Free Spins valid for 72 hours from credit. T&C Apply. Gamble responsibly. www.begambleaware.org

£1500 Welcome Bonus + 100 Extra Spins!
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18+. New players only. One bonus offer per player. Minimum deposit £20. Max bonus bet is £5. Bonus spins on selected games only and must be used within 72 hours. Bonus funds must be used within 30 days otherwise any unused bonus shall be removed. Bonus funds are 100% match up to £300 on your 1st deposit, 25% match up to £800 on your 2nd deposit, and 50% match up to £400 on your 3rd deposit. Bonus funds are separate to Cash funds, and are subject to 35x wagering the total bonus, cash & bonus spins. Terms apply. Gamble responsibly. www.begambleaware.org

100% First Deposit Bonus up to £200 + Win up to 4,200 Extra Spins!
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18+ | New Customers Only | BeGambleAware.org | Full T&C's Apply

100% up to £300 + 50 Extra Spins!
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Max bet limitations per spin apply. 35x wagering requirements apply (i.e the bonus x35). Higher wagering requirements may be applied depending on the games played. 18+.T&C apply, See Below.

100 Spins + 100% up to £200 Bonus
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Applies to new depositing players. Min deposit £10. Wagering requirements apply 35x. 100 spins require 3 deposits. Full terms apply

100% up to £99 +99 Extra Spins + 10% Cashback!
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New customers only. Min deposit £20. Wagering 40x bonus. Max bet £5 with bonus funds. 100% up to £99 bonus + 99 free spins on 1st deposit. Eligibility is restricted for suspected abuse. No max cash out on deposit offers. Welcome bonus excluded for players depositing with Skrill or Neteller. Full T&Cs apply

Up to £400 in Welcome Bonus Offers + 100 Spins!
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18+.New eligible UK players only | Select Casino offer on sign-up and deposit | 4 deposits of £10, £20, £50, £100 matched with a bonus cash offer of same value (14 day expiry) | 35x real money cash wagering (within 30 days) on eligible games before bonus cash is credited | Spins credited upon deposits; under £50 =10 Spins, £50 or over =25 Spins; on Book of Dead only (3 day expiry, winnings paid in cash) | Play Responsibly | 18+ begambleaware.org |

Welcome Package up to £300 + 45 Extra Spins!
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New players only. Wagering occurs from real balance first. 50x wagering the bonus or any winnings generated from free spins, contribution may vary per game. Available on selected games only. The wagering requirement is calculated on bonus bets only. Free spin is valid for 7 days from issue. Max conversion: $/£/€ 20 or 200kr. Full Terms apply.

100% Deposit Match up to £100 + £5 Casino Bonus!
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New Customers Only; £20 - £100, 100% Bonus: 20x wagering on combined deposit and bonus total (% game weightings and play restrictions apply). Max bonus bet £5 (£10 live casino) 15 days to accept, 40 to complete. £5 bonus: After deposit bonus wagered, selected games only. 1x wagering, 7 days to accept, 7 to complete, max withdrawal from winnings £100 Full T&Cs Apply

100% up to £50 + 100 Spins
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18+ New Players only. T&C's Apply. Gamble responsibly. www.begambleaware.org

100% up to £200 Bonus + 25 Spins
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New players only. £20 min deposit, excluding deposits by Skrill or NETELLER. Get 100% up to £200 Bonus and 25 Free Spins [FS]. FS valid on selected games & expire in 14 days. FS wins credited in bonus. Bonus wins are capped at £500. To withdraw bonus & related wins, wager 30 x (bonus amount) within 90 days. Wagering req. vary by game. This offer may not be combined with any other offer. Deposit balance is available for withdrawal at any time. General withdrawal restrictions & full T&Cs apply.

Enjoy 1000's of Slot Games at Kaboo Casino
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18+ T&C Apply

100% Welcome Bonus worth up to £200 + 100 Extra Spins!
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18+ New Players only. T&C's Apply. Gamble responsibly. www.begambleaware.org

Up to £500 Welcome Package + 100 Extra Spins!
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18+ New Players only. T&C's Apply. Gamble responsibly. www.begambleaware.org

Up to 10% Cashback + 100% Match Bonus!
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18+ New Players only. T&C's Apply. Gamble responsibly. www.begambleaware.org

Deposit £10, Play with £60 + 20 Extra Spins!
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New UK & IRL Customers only. Min deposit £10 . Deposits made with e-wallets are not valid for this promo. Bonus wagering x35 on eligible games. Winnings from bonus capped at £500. Spins available after bonus is redeemed/lost. 10 per day with no wagering. Full terms & conditions apply.

Stake £10, Get £30 Welcome Bonus
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18+. New customers only. Min £10 total stake on qualifying games. £10 Bonus, subject to 24x wager req. £10 Free Spins (20p each). £10 Golden Chips (£1 each). PayPal, certain deposit types and countries excluded. All bonuses valid for 30 days (bonus and winnings removed) on selected games. T&Cs Apply. begambleaware.org

100% First Deposit Bonus up to £100 + 50 Extra Spins on Book of Dead!
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A minimum deposit of £10 is required to claim this bonus. This offer is only valid for customers residing in the United Kingdom. Deposits via Neteller, Skrill or Paysafecard are excluded from this offer. The bonus is 100% up to £100. The bonus is available to be claimed within 30 days since registration, from your rewards section. The welcome bonus can be activated by clicking on the respective reward card and making your first ever deposit of minimum £10. Deposits after your first deposit will not trigger this bonus. The bonus must be wagered x 35 within 30 days before the funds can be withdrawn or played on other products. Once the Welcome Bonus has been claimed, your funds will be used in the following order: 1.) Any funds required to trigger the bonus 2.) Bonus funds 3.) Any remaining funds. +18. Full T&C's Apply

Up to £800 Welcome Bonus!
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18+ New customers only. Opt-in required. 1st deposit bonus 100% up to £200. 2nd deposit bonus 50% up to £200, 3rd deposit bonus 25% up to £200, 4th deposit bonus 25% up to £200. Min deposit £10. 40x wagering, 30 days to complete wagering, eligibility, game weighting and game restrictions apply. Max Bet with bonus funds £5. Max withdrawal from bonus funds is £2000. Eligibility restrictions apply, cash balance can be withdrawn at any time. T&C's Apply. Gamble responsibly. www.begambleaware.org

100% up to £123 plus 10% Cash Back
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18+ New players only, Maximum bonus is £123, Max bet with bonus is £5, No max cash out, Wagering is 50x - Skrill & Neteller excluded, Eligibility is restricted for suspected abuse, Cashback is cash, so no wagering, Cashback applies to deposit where no bonus is included. Full T&C’s apply

150% First Deposit Bonus up to £150 + 50 Extra Spins!
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Opt in required. Min deposit $10. Max bonus $150. 40x wagering requirements on bonus funds. Bonus and spins expire 7 days after opt in. Spins available on selected games only. Max redeemable $2,000 from deposit bonus. Max redeemable from spins $10. New customers only. Player currency, country, game restrictions & Terms Apply.

100% First Deposit Bonus up to £300 + 100 Extra Spins!
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18+ | New customers only and Opt in is required | 1st deposit only | Bonus expires 7 days from issue | Min £20 deposit | Max Bonus £100 | 35x Wagering | Max redeemable £2,000 | Player, country, currency, game restrictions and terms apply | BeGambleAware.org

Deposit £20, Get £20 Casino Bonus– Only 5x Wagering
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18+ New Customers Only. First deposit only. Min £20 deposit. 5x wagering. T&C Apply. Gamble responsibly. www.begambleaware.org

Deposit & Spend £20 & Get 110 Bonus Spins
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First depositors only. Deposit & Stake £20 on Midnight Wilds slot game: Get 110 Bonus Spins on Midnight Wilds slot at 5p (5 lines x 1p) per spin. Jackpot cannot be won when using free spins. Customers will also be eligible for existing standard sign up bonuses if they stake an additional £10 on Bingo, see T&Cs for details. £5 min. withdrawal on winnings. T&Cs apply. 18+ BeGambleAware.org. Please play responsibly.

Guide to the Best Blackjack Casino Sites

Blackjack is one of the most-loved casino games of all time, second only to poker in the hall-of-fame gaming stakes. Online blackjack is hugely popular because it offers quick and easy casino entertainment straight from the comfort of your own home. There’s a variety of blackjack games to play at many of the world's top online casino sites. To help you decide which ones to place your bets on, check out our 2020 UK blackjack casinos guide below!

Finding the Best Blackjack Casino Sites Online

With so many blackjack sites available, there are a few things you want to look for before settling on your blackjack casino. The best blackjack casino sites will offer all the variations of blackjack, including live blackjack play with real dealers. You want to pick a top-rated site that’s popular with casino players. You should find a top blackjack site that’s easy to use with a well presented virtual table that provides fuss-free gaming. For recommendations, be sure to check out the list above of our editor's picks for the Top UK Sites For Blackjack!

Types of Blackjack Variations

There are many types of blackjack games, with variations of the casino classic played across different countries and different casinos. Here are some of the most popular blackjack variations.

  • Surrender Blackjack | This is a form of blackjack that allows players to surrender their hand and receive half the bet back.
  • Perfect Blackjack | This variation of the game gives players the chance to place up to five blackjack side bets, otherwise the rules are just like regular blackjack with the dealer sticking on 17.
  • Pontoon | Usually played with eight decks, this version uses the standard blackjack rules with the player receiving two face up cards and the dealer receiving two face down cards.
  • Switch Blackjack | The player gets two hands instead of one in this blackjack game, with the option to switch the top two cards between hands.
  • Multi-Hand Blackjack | This is a variant of the game that allows players to play more than one hand per game.

Blackjack Strategy: When to Split or Double Down

Every blackjack player should learn the blackjack strategy that enables you to bring the house edge down to a minimum. It’s a proven method that teaches the player whether to hit or stand on certain cards. It also suggests when to double down or split cards. The strategy advises on live blackjack and online blackjack to split on a pair of aces or a pair of eights. This is because it would boost the player’s chances of getting closer to 21. Doubling down is when the house allows you to double your bet after the cards have been dealt. The best strategic move would be to double down on a 10 or 11 as you then have a 30% chance of hitting blackjack. Make sure you take a good look at the blackjack strategy before hitting the blackjack table to maximise your chances of coming away with full pockets.

Blackjack Rules: How to Play Online

Blackjack is a very simple game to play. Hence why it’s so popular among casino players. The aim of the game is to get closer to 21 than the dealer (it’s always the player versus the dealer). Two cards are initially dealt with the player choosing to ‘stick’ (no more cards) or ‘hit’ (another card is dealt to the player). The most popular version of blackjack sees the dealer having to stick when they reach 17 or over. Players can hit as many times as they like but once they go over 21, the dealer wins. The best possible blackjack hand is called ‘blackjack’, which is an Ace and a face card (10) which gives you 21. This usually pays out 1.5x your wager. The amount of decks used in the game usually depends on the casino. There are a few other blackjack rules to be aware of, too:

  • Splitting Pairs | If the player’s first two cards are the same then they can split them into two separate bets.
  • Doubling Down | Players have the option to double their wager if they land a total of 9, 10 or 11 on their first two cards.
  • Insurance | When the dealer’s face-up card is an Ace, players can make a side bet (up to half the original bet) that the dealer’s other card is a face card. If it’s a face card then your side bet pays 2 to 1.

Check out these 10 insider tips from your blackjack dealer.

Top-Rated Blackjack Games 2020

Blackjack is widely played online across live dealer tables, virtual tables and 3D tables. Here are some of the top-rated blackjack games to enjoy online.

  • Pontoon | This much-loved version of the game has stood the test of time and will continue to be a solid favourite for casino players.
  • Multi-Hand Blackjack | This game suits the blackjack expert, allowing them to play several hands at the same time and brings even more blackjack action to the felt.
  • Switch Blackjack | This a new version of the game and is proving to be a popular choice. Not all casinos offer this variation of the game.

History of Blackjack

Blackjack is one of the oldest casino games out there. This table classic that has now become the most famous form of gambling allegedly started in France or Spain in the 18th century (although this is still debated). The game was called ‘Vingt-et-un’ which translates to ‘21’. In Spain, it was called ‘Trente-un’ which translates to ‘31’. It’s even been referenced in books written way back in the 1400’s. These older games involved cards and reaching a certain number but are not exactly the same as modern blackjack. They did however lay the foundations for the casino favourite we know and love to this day. Why not enjoy a slice of card game history today.