Best Online Casino Sites

Top UK casinos - 2021

We’ve reviewed over 250 leading UK casino sites to provide the most complete list of the best online casinos in 2021. Every site in our index is licensed for British players and tested by our experts to ensure your total safety and security. We only recommend the top online casinos in the UK, offering the best gaming experiences.

We analyse over 10 unique factors to review online casino sites, including everything from bonus amounts to branding and design. Our reviewers played at every website in our index to provide you with real recommendations and advice.

Ad Disclosure
We rely on our relationships with partner sites to keep our service free. We receive compensation from many of the brands featured on Online Bingo UK which may influence how we display them.

However, we only recommend brands that we believe are safe, fair and trustworthy. The commission we receive does not affect the impartiality of our content.
1

SpinRio

78%
78%
Over 18s and new players only.

SpinRio is one of the UKs newest casinos, but it's also starting out as one of the beat with a huge variety of games to choose from. Players can choose between slots, casino games, or live casino games! Speaking of slots, you can choose from popular games including the likes of Book of Dead and Starburst. The site also has a nice welcome bonus to get you in, 100 Spins + up to £50 bonus.

Terms & Conditions: New depositing players only.Min. deposit £10. Max. bonus varies per deposit (see below). Bonuses that require a deposit, have to be wagered 35x. This offer is available to players residing in the United Kingdom only. Deposits may be withdrawn before a player’s wagering requirements have been fulfilled. However, if this occurs, all bonuses and winnings will be voided/removed from the player’s account. Players must contact support in order to withdraw their deposit.

  • First Deposit: £50
  • Casino Wagering: 35x
  • Launched: 2021
2

HeySpin Casino

80%
80%

100% Casino
Welcome Bonus

Over 18s and new players only.

HeySpin is a top choice for players looking for a fun and fresh online casino. This casino site is just as suited to players who like to spin the reels on the go as it is players who enjoy the desktop experience, with games like Starburst, Steam Tower or Mega Moolah. New players can claim a 100% welcome bonus when they sign up and deposit!

Terms & Conditions: New players only. 18+. Min deposit £20. Wagering requirements apply 35x.

  • First Deposit: 100%
  • Casino Wagering: 35x
  • Launched: 2016
3

Lottomart

73%
73%

£200 bonus for
New Players

Over 18s and new players only.

Lottomart stands out amongst other online casino sites in the UK by offering a clean mobile app and a unique bundles system for buying packs of free spins and bonuses. With lottery games from across Europe, scratchcards and a large variety of slots and casino games, Lottomart has something for everyone. Deposit a minimum of £20 to claim a 100% match bonus up to £200, plus get 10% cashback for your whole first week!

Terms & Conditions: £20 min deposit. £200 max match. 50x wagering. Game eligibility & contributions vary. 10p to £19 bet range. £1,000 max redemption. 10% cashback up to £1,000. New players only. Exclusive to select customer. Limited time offer. Valid 7 days. 18+ only. Full terms apply.

  • First Deposit: 100%
  • Casino Wagering: 50x
  • Launched: 2017
4

Duelz Casino

87%
87%

£100 Bonus +
100 Free Spins

Over 18s and new players only.

Duelz Casino is brand new to the UK audience, offering slot games, classic casino games like roulette and poker and a unique player vs player game that runs in the background. New players can claim a bonus worth up to £100, with a further 100 free spins on Book of Dead! Get involved and try out the exclusive Duelz 3 vs 1 slot game.

Terms & Conditions: 18+ new players only. Minimum deposit: £20. Maximum £100 bonus. Max bet with an active bonus: £2. Wagering requirement 100% match bonus: 30 times sum of deposit + bonus. Max redeemable from welcome bonus: £500. 100 Free Spins are given out 20 per day on Book of Dead for 5 days in a row, log in each day is required. Max Free Spins winnings: £100. Winnings from Free Spins are credited as bonus money with a wagering requirement of 45 times. Free Spins expire after 3 days. Full T&C's apply.

  • First Deposit: 100%
  • Casino Wagering: 30x
  • Launched: 2021
5

Miami Jackpots

82%
82%

100% Bonus
Up to £50

Over 18s and new players only.

Enjoy £50 in bonus funds and 50 free spins on Book of Dead by signing up to Miami Jackpots! Deposit a minimum of £10 to claim the 100% match bonus and enjoy a wide range of casino games, including slots, roulette, live casino and poker. Don't forget to use the code MJ100 to claim this welcome bonus!

Terms & Conditions: First Deposit Only. Min. deposit: £10, max. Bonus £50. Game: Book of Dead, Spin Value: £0.10. WR of 30x Deposit + Bonus amount and 60x Free Spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings and bonus amount or £5 (lowest amount applies). Free Spins must be used before deposited funds. First Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Full T&Cs apply.

  • First Deposit: 100%
  • Casino Wagering: 30x
  • Launched: 2019
6

Play Magical Casino

80%
80%

150 Free Spins
+ £150 Bonus

Over 18s and new players only.

New to the market, Play Magical adds a sprinkle of magic to your gameplay! Hosting a huge selection of the best slot games, why not see if Play Magical is going to be your new favourite site. New players can claim a £150 welcome bonus and 150 free spins!

Terms & Conditions: First 3 Deposits only. Min deposit £10 1st and 2nd deposit, min £20 3rd. Max cumulative bonus £150 and 150 spins. Bonus match amount varies per deposit. Spins awarded on one of four chosen games. 50x wagering on Deposit + Bonus, 50x on bonus spins. 10x max bonus conversion or £5,000, whichever is lower. £5 max bonus stake. Full T&Cs Apply.

  • First Deposit: 100%
  • Casino Wagering: 50x
  • Launched: 2019
7

MrQ Bingo

87%
87%

24 hrs Free Bingo
+ 30 Free Spins

Over 18s and new players only.

You'd be crazy to miss this welcome offer! With 24 hours of free bingo and 30 free spins on your first deposit, MrQ online casino has one of the most impressive bonuses. Sign up and choose from hundreds of casino and slot games.

Terms & Conditions: First deposit only. Min deposit & spend £10. Max 30 spins on VALHALLA at 25p per spin. Spins credited upon spend of £10. Terms and conditions apply.

  • First Deposit: FS10
  • Casino Wagering: -
  • Launched: 2018
8

All British Casino

78%
78%

100% Casino Bonus
+ 10% Cashback

18+ only. Full T&Cs apply.

All British Casino is one of the best online casinos for UK players to join and play on. Grab a 1st deposit match worth up to £100, plus you'll get 10% cashback on all losses. You'll find a huge selection of Evolution Gaming live table games to try, including; Blackjack, Roulette and much more. 

Terms & Conditions: Minimum deposit requirement is £10 to be included for our welcome, deposit and reload bonuses. Maximum bonus available will be communicated in specific promotional offers. UK players only. 35x wager requirement applies. Bonuses have 30 day period until expiry. Further T&Cs apply. 

  • First Deposit: 100%
  • Casino Wagering: -
  • Launched: 2013

Platin Casino launched in 2013 and has earned a reputation as a trustworthy site with some quality offerings. There are plenty of great games, an impressive live casino, and has an added bonus of no withdrawal fees. New players can claim a Welcome Bonus, when they deposit £20, receiving £50 and 50 free spins.

Terms & Conditions: New customers only. Max win from bonus mone £100. Max stake with bonus active is £5 and 30x wagering on Slots only. 50 cash Free Spins released over 5 days. Expires 14 days after deposit. Full T&C's apply.

  • First Deposit: £50
  • Casino Wagering: -
  • Launched: 2013
10

CasiGO Casino

93%
93%

825 bonus spins 
on your first 5 deposits

18+. New players only. Full T&C's apply.

CasiGO is one of the most exciting online casinos available today, with hundreds of games available for players to dive into! New players can even signup and treat themselves to their exciting welcome offer of 825 bonus spins!

Terms & Conditions: 18+. New players only. One Welcome Package per player. Max Bonus Bet £5. Get 3 Bonus spins for every £1 deposited up to 165 spins for each of your first 5 deposits. Min. deposit is £20. All spins are on Book of Dead only. Bonus funds must be used within 30 days ad bonus spins within 10 days. Spins winnings credited as a bonus and capped at an amount equivalent to the number of spins awarded. Bonus funds seperate to Cash funds, and are subject to 35x wagering and withdrawal requirements. Full T&C's apply.

 

  • First Deposit: -
  • Casino Wagering: 35x
  • Launched: 2020
11

PlayOJO

93%
93%

Up to 50 Spins
Wager Free

Over 18s and new players only.

PlayOJO is giving all new players up to 50 free spins with no wagering requirements. You can play over 1,000 casino classics, slot games and live dealer tables from top-tier software suppliers. All players can earn cashback on every bet paid as real cash.

Terms & Conditions: 1 free spin credited for every £1 deposit. Up to 50 free spins valued at £0.10 each on Book of Dead. Min. deposit £10. First time depositors only. Rewards and game play policy applies. 

  • First Deposit: FS50
  • Casino Wagering: 0x
  • Launched: 2017
12

The Sun Play

76%
76%

£400 Match Bonus
+ 150 Free Spins

18+ only. Full T&Cs apply.

Join the casino backed by the nations best-selling newspaper. The Sun Play is a top Nektan casino with over 800 games from some of the best games providers; NetEnt, IGT & Blueprint Gaming. Claim a huge Welcome Bonus worth up to £400 bonus cash plus up to 150 free spins up for grabs! 

Terms & Conditions: New customers only, first 3 deposits only, min deposit £10, max bonus £400 + 150 spins on Wolf Gold, selected slots only, 40x wagering (bonus + spins), T&Cs apply.

  • First Deposit: £200
  • Casino Wagering: -
  • Launched: 2017
13

Sun Vegas

73%
73%

100% Deposit
Match up to £300

Over 18s and new players only.

Sun Vegas is the newest online casino from the same company that bought you the fantastic Sun Bingo, offering a mobile friendly design and a name you can trust. Enjoy live casino games and hundreds of slots with a generous 100% match welcome bonus up to £300! 

Terms & Conditions: 100% bonus up to £300 on your first deposit · New Customers Only · Min Deposit £10 · 50x WR ·  Offer must be accepted within 72 hours. Bonus Valid for 30 Days · Max bet restrictions apply · Bonus can't be withdrawn. Bonus can only be spent on Slot Games · Skrill/Moneybookers and Neteller are not valid for this promo · Real money balance can always be withdrawn.

  • First Deposit: 100%
  • Casino Wagering: 50x
  • Launched: 2018
14

Karamba Casino

91%
91%

100 Spins + up
to £50 Bonus

Over 18s and new players only.

Karamba is one of the favourites for online casino and sports betting and their slot selection is equally as impressive! Check out their huge selection of online casino and table games, all available at the click of a button! Join to find out why its one of the best online casinos on the market today

Terms & Conditions: 18+, Terms and Conditions apply. New players only. 18+. Min deposit £10. Wagering requirement apply 35x. Offer valid for 72hr. 100 spins includes 3 deposit. Full terms and conditions apply.

  • First Deposit: 100%
  • Casino Wagering: 35x
  • Launched: 2005
15

Mad About Slots

82%
82%

£1000 Bonus
+ Free Spins

Over 18s and new players only.

Enjoy top slots and casino games online with Mad About Slots. They boast a catalogue packed full of slot games, including favourites like Starburst and Gonzo's Quest. New players to the casino can claim up to £1000 and 50 free spins across 5 deposits!

Terms & Conditions: 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. Bonus is valid for 30 days/ free spins valid for 7 days from issue. Max conversion: 3 times the bonus amount or from free spins: $/£/€ 20. Excludes Skrill deposits. Full T&Cs Apply.

  • First Deposit: -
  • Casino Wagering: 50x
  • Launched: 2014