Top Online UK Casinos 2021: Find the Best Online Casino UK!

Play the world’s best casino games at the best UK online casino sites. From video slots to live casino and many more, there is much to discover when playing at the best online UK casinos.

Best UK Online Casinos 2021


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All British
100% up to £100 on sign up
  • Huge choice of games
  • Licensed by multiple regulators
  • Cashback bonuses
* more terms & conditions apply

Welcome bonus for new players only. Maximum bonus is 100% up to 100 GBP. Min deposit is 20 GBP. No max cash out. Wagering is 35x bonus. Maximum bet while playing with a bonus is 5 GBP. Eligibility is restricted for suspected abuse. Cash back is cash with no restrictions. Skrill and Neteller deposits excluded. Cashback applies to deposits where no bonus is included. More T&Cs Apply. 18+.

£88 No Deposit Bonus
  • 888 exclusive games
  • VIP club for loyal players
  • Huge jackpot games
* more terms & conditions apply

New players only • Claim within 48 hrs • 14 day expiry • FreePlay (FP) wins credited as bonus & capped at £10, excl. JP wins • Valid for selected games • Bonus wins capped at £500, excl. JP wins • Pre-1st deposit only: Bonus wins & max redeemable amount capped at £100, excl. JP wins • 50x wagering – req. vary by game • Bonus expires in 90 days • Withdrawal restrictions, T&Cs apply.

Mr Play
£200 Welcome Bonus + 100 Free Spins
  • Loyalty programme
  • Scratch cards
  • Monday rewards
* more terms & conditions apply

Terms and Conditions apply. New players only. Min Deposit £10. Welcome package splits over 3 deposits. 35x wagering requirement applies to match up bonus. Offer valid for 1 week. 100 spins split to 20 spins a day for 5 days. 50x wagering applies to spins. See full terms on website. 18+.

£100 Welcome Bonus
  • 10% cashback
  • Easy registration with Pay N Play
  • Tournaments leaderboards
* more terms & conditions apply

#AD New customers only. Min deposit £20. Wagering 40x. Max bet £5 with bonus funds. 100% up to £100. Eligibility is restricted for abuse. No max cashout on deposit offers. Welcome bonus excluded for players depositing with Skrill or Neteller. Cashback applies to deposits where no bonus is included. Cashback is cash with no restrictions. Full T+Cs apply.

£111 Welcome Bonus + 100 Free Spins
  • Popular slingo games
  • Slot tournaments
  • Regular casino promotions
* more terms & conditions apply

New customers only. No restrictions while playing with cash. Min refund is £10. Wagering on bonus is 60x. Refund bonuses granted next day when 1st deposit has been lost. When playing with refund bonus max bet is £5. Eligibility is restricted for suspected abuse. Skrill & Neteller deposits excluded. Full T+Cs apply.   

Wink Slots
30 No Deposit Free Spins
  • Monday's Reel Deal
  • Daily cashback
  • Daily challenges
* more terms & conditions apply

UK players only. Country restrictions apply. New players only. Register & get up to 30 Free Spins [FS]. 10 FS per day upon log in, on selected slots, over 3 days (must be claimed by 23.59 on day of grant & valid for 7 days once claimed). FS wins set at £1-£4 (per 10 FS). Reg bonus wins capped at £100 exc. PJP wins. To withdraw games bonus & related wins, wager 30x the amount of bonus. Wagering req. vary by game. Deposit balance can be withdrawn at any time. Full T+Cs apply. 

£100 Welcome Bonus + 200 Free Spins
  • Large jackpot prizes
  • VIP club
  • Many casino promotions
* more terms & conditions apply

New customers. Min deposit £20. 40 free spins on first deposit. 160 free spins after first deposit (20 per day). Max win £100. 20x wagering requirement. Deposit bonus 40x wagering. Expires 30 days from issue. Eligibility, game, platform, payment restrictions and T+Cs apply. 18+.

500 Free Spins
  • Jackpot games
  • Lottery
  • Live casino
* more terms & conditions apply

18+. New players only. £10 deposit, no e-wallets/prepaid card, up to 500 free spins, 40x Plt on free spin winnings. T+Cs apply. 

50% Welcome Bonus up £100 + 25 Free Spins
  • Prize pools
  • Many bonus promotions
  • Live casino tourney
* more terms & conditions apply

New customers only. Min deposit £15 (no Skrill/Neteller). Wager bonus 40x within 15 days. Max winnings = 10x bonus. Free spins validity: 7 days. Free spins max. winnings = £100. Stake contribution as per eligible games. See full terms. Terms apply. 18+.

Stake £10, Get 50 Serious Free Spins
  • Daily specials
  • Weekly specials
  • Slingo games
* more terms & conditions apply

To qualify for this promotion players must enter FREESPINS at registration. To activate the free spins, you must deposit and stake £/€10 or more on your first day’s play at QuinnCasino. 50 free spins (£/€0.10 per spin) on the slot Asgard Warriors will be credited by 4 pm the day after qualifying and must be used in full within 7-days. T&Cs apply | 18+ New UK and IE Customers Only |

Fun casino
100% up to £123 + Always 10% Cashback
  • Rich in jackpots
  • Excellent live dealer games
  • User-friendly interface
* more terms & conditions apply

#AD 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+Cs apply.

£20 Bonus + 10 Free Spins
  • 10 Free spins with no wagering
  • New slots available
  • Daily jackpot games
* more terms & conditions apply

18+. New Customers only. Opt in, deposit and wager £5 within 7 days of opening new account. £20 bonus = 2 x £10 bonus for selected games with up to 40x wagering. Bonuses expire 7 days after crediting. Free Spins have no wagering and expire in 7 days. Max redeemable £500. Paypal and Card payments only. Geographical Restrictions and T&Cs apply. Please Gamble Responsibly. 18+.

Vegas Hero
£100 Welcome Bonus + 50 Free Spins
  • Drops & Wins
  • 10% live casino cashback
  • Tuesday 25% reload bonus
* more terms & conditions apply

18+ Full T&C's Apply. New players Only. £10 min deposit. £5 max bet using bonus. 60x (40x referred player) wagering applies. Bonus valid for 14 days. 10 Spins on pre-selected games will be credited instantly + then 10 per day for 4 days. Free Spins valid for 72 hours from credit. Max Free Spins winnings £100. Ewallets excluded. 

£50 Welcome Bonus + 50 Free Spins
  • Exclusive prizes
  • Over 800+ games
  • Many payment methods
* more terms & conditions apply

Terms and Conditions apply. New players only. 18+. Min deposit £20. Welcome package split over 3 deposits 35x wagering applies to match up bonus . Offer valid for 1 week. 50 Spins on Starburst – 35x wagering applies to Spins. See full terms here. 

£50 Welcome Bonus + 100 Free Spins
  • Weekly prize draw
  • Regular promotions
  • Easy payments
* more terms & conditions apply

 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. See full terms here. 

Mr Green
100% up to £100 + 200 Free Spins
  • Amazing design
  • Reliable banking methods
  • Exceptional customer experience
* more terms & conditions apply

Terms and Conditions apply. New UK customers only. Opt in required. 1x per customer. Min. £20 deposit. 1st deposit only. Selected games only. Max. Bonus £100 with 35x wagering and 50 Free Spins at £0.20/spin on Starburst™ with 35x Wagering. Free Spins and Bonus credited once deposit amount has been wagered on slots. Bonus and Free Spins expire 7 days after issue. Game weighting, game, country, currency, player restrictions and terms apply. 18+.

Amazon Slots
Win Up To 500 Free Spins
  • Regular promotions
  • Birthday Bonus
  • Free Spins of the Month
* more terms & conditions apply


£100 Welcome Bonus + 200 Free Spins
  • Tournament leaderboards
  • Tuesday Reload Bonus
  • Many payment options
* more terms & conditions apply


£50 Bonus + 50 Free Spins
  • Popular casino games
  • Many payment methods available
  • Instant deposits and withdrawals
* more terms & conditions apply

*Terms and conditions apply. New customers only. Max win from bonus money £100. Max stake with bonus active is £5 and 30x wagering. 50 cash free spins released over 5 days. Expires 14 days after deposit. 18+.

Level Up and Get an Extra Wheel Every Day
  • Real rewards
  • Fast withdrawals
  • Great customer experience
* more terms & conditions apply

18+. ‘Levels ups' are achieved by gaining Frequent Player Points. Frequent Player Points are gained by playing on games on our casino. Play on Live Casino contributes 10% of the Frequents Player Points of Slot Games. Players will receive 1 spin on the Wheel of Rizk each time they level up.  T+Cs apply.  

Top10 Sites s – LeoVegas
10 Free Spins No Deposit
  • Game of the Week
  • Available to play on mobile
  • Must Fall Jackpots
* more terms & conditions apply

Full T&Cs apply. No deposit required & new players only. Claim from “My Offers” within 3 days of registration & 3 day expiry. 10 free spins worth £0.10 each on Book of Dead, winnings paid as cash. 18+

£50 Welcome Bonus + 50 Free Spins
  • Exclusive games
  • Regular promotions
  • Live casino games
* more terms & conditions apply

Full T+Cs apply. New Player Only. Min Deposit £20. Wagering requirements apply 35x. Offer valid for 72 hours. 18+.

£50 Bonus + 100 Free Spins
  • Quick registration
  • Top casino games
  • Lottery betting
* more terms & conditions apply

18+ New customers only. Opt in, deposit and wager £10 on selected games within 7 days of opening new account. Get 1 x £20, 3 x £10 bonuses for selected games with up to 40x wagering & 7 days expiry. Max redeemable from bonuses £1,250. 100 Free Spins are on selected games, have no wagering and expire in 7 days. Additional terms for existing BetVictor customers Apply. T&Cs Apply. | | Please Gamble Responsibly.

What Makes the Best Online Casino UK Site?

Every online casino is going to tell you that they’re the best around; they’re all trying to sell you a product at the end of the day. It’s easy to feel bombarded as a result, which is why we've created this guide to help you spot the best casino UK sites that offer nothing but a top-notch experience.

It may not seem like it, but there are actually quite a few things you need to consider when choosing an online casino. You’ll want to find a casino that has the whole package, and that includes bonuses, payment methods and the selection of games, to name just a few key aspects. When there are so many online UK casinos to choose from, it makes pinning just one or two down far more difficult.

While there are many factors you need to consider when picking one of the best online casino UK sites to register with, some of these depend on your own personal preferences. For instance, some players may class the bonus as the most important thing to them, whereas other players may be more interested in safety and security.

Keep reading to find how to choose the best UK online casino that’s most suitable for you. We’ve already rounded up a list of the best casino UK sites above, but there's plenty more useful information below that will give you a more rounded view of what to expect in terms of quality.


What Games Can You Play at the Best Online Casinos UK?

Joining an online casino is just like entering a land-based casino, if not even better. You’ll find every single game you can think of, and more. In fact, most avid UK casino players prefer gambling on the best online casino UK sites because there is more of a selection available – some online sites even have their own sports betting portal. The best UK casino sites have even spruced up the action by adding casino tournaments to the mix to add more of a competitive element against other players, enhancing the overall online casino experience. Online casinos have become so popular that now you’ll even find streamers playing the best casino games, so you can get an idea of what to expect before you experience all the action yourself. The best payout online casino UK sites will certainly have an impressive collection to help you win the big bucks!

Online Slots

Real money slots are probably the first thing that comes to your head when you think of the best UK casinos out there, as the latter are absolutely packed with these games. With online slots, all you have to do is spin the reels and keep your finger crossed for a lucky win! Luckily, there are literally thousands of video slots available to play, all ranging across different themes to suit every player’s taste, including Pirate, Aztec and Egyptian slots.


Jackpot Slots

Jackpot slots are essentially the same as video slots, but there’s usually a bigger prize involved. There are two main types of jackpot games at the best online UK casinos: progressive jackpots that increase in value according to how many players contribute to the prize pull, and in-game jackpots that remain fixed throughout the whole game. It doesn’t really matter how much you choose to wager when playing jackpot games; it all depends on whether you land on the lucky jackpot spin instead. Be sure to keep your eyes peeled for the top titles available – the best payout online casino UK sites will definitely have Mega Moolah in their games catalogue, for example, which is widely considered to be the best jackpot slot game around.


Table Games

Before we had slot machines, many of us would place our bets on card games with friends. Table games have been around for generations, and it’s clear that these timeless classics won’t be going anywhere anytime soon. Players who are drawn to table games enjoy challenges that require more skill rather than solely relying on luck. The best online UK casinos will have multiple table games for players to enjoy, such as blackjack, baccarat and roulette.


Live Casino

Computer-generated table games are not so popular anymore now that live casino has been introduced to the mix, adding a more authentic casino experience to your online play. You can play the best table games with a live dealer, who will oversee and manage the game's progress as you compete against other players. The great thing about live casino is that you can join in a game at whatever time you want, because the vast majority of games are available 24/7, giving you plenty of opportunities to place your bets.


Safety and Security – How Does the Gambling Commission Protect You?

As a UK player, you probably already know that the Gambling Commission is the organisation that sets up all the rules against gambling. While some of the laws and regulations set up by the Gambling Commission may seem a little intrusive at first glance, you’ve got to remember that all these laws are set to protect you as a player. If anything, we’re really lucky to have an organisation that protects us from crooks that are trying to steal our money.

All licensed casinos are subject to stringent checks before they are allowed to accept any UK player from joining their website. This means that the Gambling Commission checks the reputation of the casino, and ensures that every single player’s money is protected and that all the games are fair. Aside from this, they must also ensure that no fraudulent activity is taking place, which is why all casinos must ask for documents to verify your identity. All casinos are at risk of losing their licence or being fined a hefty amount if they break any of the rules – it’s not the first time that an online casino has lost its licence altogether for failing to protect players.

However, the Gambling Commission is constantly monitoring casinos, so they always have to be at the top of their game. If you fall into any problems whatsoever, you have a right to report any issues you may experience because the Gambling Commission is there to protect you. This is why we always advise that you only register at licensed online casinos, in order to ensure that you have an extra degree of protection. You can even file a dispute with eCOGRA, an independent body, if you believe that the casino’s customer service team are failing to resolve your case. At the end of the day, you will have peace of mind when playing at a UK casino that is registered under the Gambling Commission.


How to Register at the Best Online Casinos UK

The internet has made almost everything easier for us, and that even includes registering online to buy and use our favourite products. Every single business is all about making the interface easier for customers to understand, so that you can get the registration process done in no time. Registering for a casino is just like registering with anything else online – all you need to enter is a few personal details to get going.

To create your account at any online casino, there are only a few simple steps you need to follow:

Creating a UK Casino Account Creating a UK Casino Account
  1. Choose one of the best online casino UK sites to start your casino journey.
  2. Click on ‘Create an Account’, which you’ll be able to find anywhere on the page.
  3. Enter your personal details, such as your name, date of birth, address.
  4. Insert your email address and create a password to use every time you log in to your casino account.
  5. You’ll be sent an email to validate your new casino account.
  6. Once your account is validated, you can log in to your casino account any time you wish.

In order to get the most from your casino experience, you’ll need to deposit some money to start wagering on games. Unless you claim a registration no deposit bonus, you won’t be able to play any of the games until you deposit onto your account.


Deposit and Withdrawals Options at the Best Online Casinos UK

You won’t be able to play slots at the best online casino UK sites unless you make a deposit. This process is relatively similar to buying a new product online to have it delivered to your home. You’ll probably be able to use the same payment methods you usually use when making an online purchase, so there’s nothing different you need to do when depositing at an online casino.

However, you’ll probably find that there are a lot more payment options for you to choose from at an online casino, as these sites tend to be a lot more flexible than the average online store. PayPal continues to be the UK’s favourite payment method for ease and flexibility, and luckily, this e-wallet is accepted at many of the best online UK casinos. To deposit funds, simply log in to your PayPal account – there's no need to enter your bank details each time to wish to make a transaction.

The best UK online casino sites accept many other e-wallets, including Neteller  and Skrill payment. Having said that, do be careful which payment method you use for your first deposit, as some payment providers are not accepted when claiming your welcome bonus.

Of course, the traditional payment methods that we’ve been using for years are still being accepted at the best online UK casinos. If you prefer to use your debit card, then you’ll definitely find it as a payment option so that you can both deposit and withdraw from a casino. However, UK players are no longer able to deposit money using a credit card, due to new rules by the Gambling Commission to heighten players' security. There’s also the option to make a payment via bank transfer, but we recommend using one of the new fintech companies instead, as they transfer your money almost instantly. Trustly is a new payment provider to the UK market that can transfer money by the customer logging in to their online bank account through a secure server.

If you’re looking for something different altogether, then there are other payment methods you can try at the best casino UK sites. If you’re someone that prefers to keep their personal details private, you can purchase a prepaid card from your local convenience store and use this voucher to deposit onto your online casino. The most popular of these cards is paysafecard, as it’s available at many UK outlets. Cryptocurrency is also on the rise, and a few online casinos have already started to accept Bitcoin wagers. Look out for specialised crypto casinos which accept many other different crypto coins, such as Litecoin and Ethereum.


How to Find the Best Casino Bonuses UK Sites Have to Offer

Casino bonuses allow us to wager money for free and still be in with the chance of winning big! They basically grant players funds to wager with on their favourite games. You can get free spins or extra bonus money added to your deposit, meaning that you can enjoy the action for longer when claiming the best casino bonuses UK sites have available.


Top UK Online Casino Welcome Offers

New players will mostly be interested in welcome bonuses, as these will top up their deposit with a match bonus, furthering your opportunity to try out a selection of what the casino has to offer. You can also benefit from a no deposit bonus that doesn’t require you to deposit any money whatsoever – you will get a handful of free spins to play on a popular game when you register a new account at a casino that’s taking part in this offer.


Top UK Online Casino Reload Offers

Reload bonuses are designed especially for existing players at UK casinos to take advantage of after wagering all of their welcome bonus. The best online UK casinos also have designated VIP programmes for their most loyal customers, and you can expect to find only the best bonus offers. You can take a shot at casino tournaments where you compete against other players to reach the top of the leaderboard and may win a bonus as a prize too! As you can see, there are literally tons of bonus promotions you can take advantage of, so that you’ll always have some free money to wager on the best games.


Claim the Best UK Casinos Bonus

We’ve got all the best and latest bonus offers listed on our website already, so you can take your pick whenever you want. Don’t forget to keep checking back – we’re always adding more bonus promotions to our website as they come along. Otherwise, we recommend that you check your casino’s promotions page to claim a bonus promotion as soon as possible. When signing up to a new casino, don’t forget to check the relevant box to receive email and SMS communications; this will notify you of any tailored casino offers that you're eligible for.


Best Mobile UK Casinos

We’re all on our mobile phones more than our desktop these days – let’s face it, it’s far more comfortable and convenient browsing on a small handheld device rather than a clunky laptop. Mobile casinos have become extremely popular because of their superb graphics and ease of access; you can play all your favourite games on the UK casino's mobile app or site. Whether you’re playing on an iPhone, Android or Windows phone, you’ve got access to all the top casino games and casino apps at the best online UK casinos out there!


Best UK Online Casinos Reviews

Now that you know exactly how to recognise all the best UK casino sites, you can go ahead and start spinning those reels for some fun and excitement. Below, we've also included mini-reviews of what we currently consider to be some of the best UK casino sites online.

Mr Green

Mr Green has a star-studded line-up of games, which is no surprise considering how many awards this casino has won over the years. That’s not the only reason why Mr Green has been classed as one the best UK casino sites, though; we can't not mention the massive promotions, the fun reel thrill tournaments and the luxurious VIP programme for high rollers.


Voted the best mobile casino for its seamless app, LeoVegas is the best online casino for players who enjoy spinning the reels on the go! LeoVegas has also recently introduced bingo to the mix of their ever-growing games collection, putting a smile on the faces of bingo lovers nationwide. If you're looking for star-quality, you need not look any further.

Energy Casino

If you want a little energy boost, then Energy Casino is the casino for you. Trust us, the name definitely holds true, with incredible casino tournaments on offer that will keep you on the edge of your seat. Not to mention the fact that you even collect points every time you deposit and can spend them on free spins on some of the best games in the industry!


Responsible Gambling

You must be at least 18 years old to gamble, by law. It's important to remember that gambling can be addictive. You should only ever play for fun and should never attempt to chase your losses. For more information, please visit 

It’s also worth familiarising yourself with the self control tools available on the casino site, these tools include:

  • Self Exclusion Options 
  • Time outs
  • Loss limits 
  • Deposit limits 
  • Bet/wager limits
  • Screen time limits

Always Gamble Responsibly.


Best Online Casinos UK FAQs

❓ Where can I find the top three new casino sites in the UK?

Luckily for us, new casinos are entering the UK market all the time, giving us more choice when it comes to playing the most popular slots. We’d say that the top three new casino sites in the UK are Playzee, TradaCasino and Casimba! All of these casinos have a brilliant selection of games, as well as some insane bonus offers.

❓ Which is the best welcome bonus for UK online casinos?

We believe that JackpotCity has the best welcome bonus, offering up to £1,800 along with free spins on your first couple of deposits. Keep checking our website to find all the best casino promotions – we’re constantly on the lookout for more!

❓ Can I win real money at the best casino UK sites?

Yes, you can win real money when playing at all the best casino UK sites. If you’re lucky enough to win, you can request a withdrawal to your bank account. Remember, you will be asked to withdraw your money back into the same payment method you used to deposit.

❓ Do I need to verify my account?

Yes, according to laws stated by the Gambling Commission, all players must verify their accounts at some point. The casino will ask for a copy of your personal identification document and a proof of address in order to verify your account. Verification is done for many reasons, including proving your age and to prevent fraud.

 ❓ Can I play online slots at the best online casino UK sites on my mobile?

Yes, the best online casino UK sites will have the option to play casino games on your mobile phone. You will either need to download an app or log in to your account via your mobile phone browser.

❓ How important is reputation when choosing an online casino?

There are many new casino sites popping up as the gambling market continues to saturate. While reputation is a good indicator of finding the best online casino UK sites, new casinos still have a lot they can offer to players in terms of innovation. As long as the casino holds a licence, you can choose to play on any online casino.

❓ What is the best UK casino in 2021?

We can’t tell you which is the best UK casino in 2021 because we cannot pick just one casino! However, we’d definitely put LeoVegas, Mr Green and Energy Casino up on that list, as they are the casinos that have the greatest promotions.

❓ How do I know if a casino is legit?

UK players should only ever gamble at a casino that holds a licence from the UK Gambling Commission; otherwise, you won’t be protected as a customer. All casinos that are licensed by the UK Gambling Commission will have the logo displayed at the bottom of their website, and this will also be stated in the terms and conditions. For extra safety, you can visit the Gambling Commission website yourself and check if the casino holds a registration number.

❓ Which is the best payout casino?

There isn’t necessarily a best payout online casino UK site because slots will have the same RTP, no matter on which casino you choose to play the game. However, some casinos have more slots than others, such as LeoVegas, which has its own exclusive Megaways slot.



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