Top 20 Online Casinos UK – View 20 best online casinos for UK slots players

Top 20 Online Casinos UK - View best online casinos UK

With the online casino world busier than ever before, we’ve made it easier for Brits to get a taste of the action with our very own top 20 online casinos UK. Open up the following selection of our 20 best online casinos to see who we’ve chosen.

New platforms with a UK Gambling Commission license are popping up all over. But with so many options, how do British players distinguish top online casinos in UK from the average?

This compelled us to select our top 20 online casinos UK for Casino Professor. All our chosen sites have the basics in place – plenty of games from good providers, strong security, support for desktop and mobile devices etc – but the very best sites offer more than just that.

Therefore, we’ve carefully picked out each site for a reason – and we explain exactly why we think they are one of the top 20 UK casinos currently. Are you sitting comfortably?

1. MrQ Casino

No Deposit Bonus
10 FS + 6 Bingo tickets (no wager!)

First Deposit Bonus
EXCL: 20 Free Spins -- code: QUEEN20

One of the most highly rated sites on our UK online casinos list is MrQ Casino. They are extremely popular with British players and have really developed their library of casino games, most recently with the addition of live casino tables in August 2021. We’ve also managed to get an exclusive offer to get you off on the right track.

Why MrQ Casino? – They are one of our best casino sites with no wagering requirements. Why? Because they’ve scrapped wagering requirements completely – so everything you win at this site is yours to keep immediately.


2. Betfair Casino

No Deposit Bonus
50 Free Spins (no wager)

First Deposit Bonus
EXCL: Bet £10 - Get 50 FS (no wager)

One that you might not think of as a classic entry into a top 20 online casinos UK list is Betfair. But we’ve been massively impressed with their progress over the last few years. There’s now loads of slots and casino games available, while Betfair is also a possible no verification casino UK – which means they might be able to automatically verify your ID with no documents required. This is a decent feature that can save a lot of time.

Why Betfair Casino? – They are also one of our Visa Direct casinos – where you can benefit from fast Visa payouts if you win some money.


3. Casumo Casino

No Deposit Bonus
-

First Deposit Bonus
EXCL: 100% up to £100 + 20 Bonus Spins

Casumo completely revolutionised iGaming in 2012, with players embarking on a journey in order to get casino rewards. Casumo have since racked up multiple awards for their efforts (Casumo Wikipedia – Awards). But they’re constantly making improvements to this day too, like adding Slingo which is a new type of game popular with the English. In fact, Casumo are one of our top Slingo sites UK now along with being one of our top 20 slots sites UK.

Why Casumo Casino? – There’s nothing like a trendsetter, so Casumo sailed into our best British online casinos for how they’ve shaped online casino entertainment.


4. PokerStars Casino

No Deposit Bonus
100 Free Spins (no wager)

First Deposit Bonus
Spend £10 = 150 FS (no wager)

PokerStars Casino have really put together a great all-round experience. Their casino has improved in the past few years with more slots and games being added. They also offer classic poker and sportsbook gambling for the complete platform. They’re also our pick for players looking to try and get a £20 free no deposit casino. They’re another nice addition to our 20 best online casinos UK.

Why PokerStars Casino? – This casino allows new players to play free slots with no deposit or card details to win real money!


5. Duelz Casino

No Deposit Bonus
-

First Deposit Bonus
100% up to £100 + 100 FS

It’s a bold move to include new online casinos into this 20 best online casinos UK collection. However, Duelz Casino more than meets the requirements! After launching in the UK during May 2021, you can enjoy plenty of slots, speedy payments at this fast payout casino UK, and adventure type gameplay.

Why Duelz Casino? – Compete in slot battles against other players for rewards.


6. LV Bet Casino

No Deposit Bonus
EXCL: 10 Spins -- promo code: PEARL

First Deposit Bonus
Deposit £10 - Play with £30

LV Bet is a fantastic addition to our top 20 online casinos UK list due to the sheer number of games they offer. Play all the classic entertainment – slots, live, table etc – with sports betting included too for one of the best British gambling sites as a whole.

Why LV Bet Casino? – You can deposit and play using a variety of methods – and they recently became part of the elite PayPal casinos in the UK.


7. Paddy Power

No Deposit Bonus
50 Free Spins -- No Wagering

First Deposit Bonus
Bet £10 -- Get 100 Free Spins (no wager)

One of the UK’s most popular bookmakers is also one of the top 20 UK casinos in our view. They’ve expanded their casino platform considerably over the past few years, offering a wide range of top quality games from popular providers. They’re also one of the few sites with the possibility of playing free scratch cards no deposit.

Why Paddy Power? – They have many promotions for existing players – so there will be plenty more offers you can take advantage of once you’ve signed up.


8. Bonus Boss Casino

No Deposit Bonus
Up to 100 Free Spins

First Deposit Bonus
Up to 100 Free Spins + up to £300

The Bonus Boss Casino provides unique slots and casino games that can’t be played at any other site. You can spin away on something new nearly every month too, as that’s the average time it takes for a new game to be released.

Why Bonus Boss Casino? – Being a £5 PayPal deposit casino, you can play here with as little as a fiver using one of Great Britain’s most popular payment methods.


9. Dr Slot Casino

No Deposit Bonus
Up to 120 Free Spins

First Deposit Bonus
Up to 300% match up to £50 bonus

Another site that’s good enough to be one of our top 20 online casinos UK is Dr Slot. They happen to be one of the few pay by phone casinos available in the UK with low minimum deposits.

Why Dr Slot Casino? – They are known to be a quick verification casino, so any documents should be verified quickly so you can start to play.


10. LeoVegas Casino

No Deposit Bonus
-

First Deposit Bonus
Up to £100 + Up to 50 FS

LeoVegas has been a fantastic site for UK players for many years. They pioneered the idea of mobile casino and led the way for the rest to follow on smartphones and tablets. They’re an easy addition to our top 20 online casinos UK.

Why LeoVegas Casino? – LeoVegas have exclusive slots that can only be played on their site.


11. Yeti Casino

No Deposit Bonus
23 Extra Spins

First Deposit Bonus
100% up to £111 + 77 FS

Not all of the top 20 online casinos UK are some that you’d expect, but they’ve all been included on pure merit! Take Yeti, for example – a gambling site which doesn’t take itself too seriously, hence the name! You’ll find the same quality slot providers though, with regular promotions to see you through.

Why Yeti Casino? – Get things off to a great start with no deposit Starburst free spins.


12. PlayOJO Casino

No Deposit Bonus
--

First Deposit Bonus
EXCL: 80 FS -- no wager!

Known as “the fair casino”, PlayOJO have seen their popularity explode after they got rid of playthrough requirements once and for all. This means you will get free spins no wagering whenever you get a bonus.

Why PlayOJO Casino? – You can activate bonuses using e-wallets such as PayPal – which many other sites don’t allow.


13. Casino 2020

No Deposit Bonus
Up to £5 bonus credit

First Deposit Bonus
Up to 100% match up to £100 bonus

Casino 2020? Yep, although that year has already passed, we have been mightily impressed by what we’ve seen and are happy to add them as an entry into the top 20 UK casinos. They’ve got a pretty unique product – offering slot games that can only be found on their site.

Why Casino 2020? – Enjoy a batch of free spins no deposit when signing up as a new UK player.


14. Cashmo Casino

No Deposit Bonus
Up to £5 bonus credit

First Deposit Bonus
Up to 200% match up to £100 bonus

Cashmo has unique slots and games that can’t be found anywhere else, making them an easy addition to the top 20 online casinos UK. They’ve also got many popular payments and have a pretty quick payout time on average.

Why Cashmo Casino? – Not only can you play unique slots here, Cashmo regularly give out a Game of the Month bonus for existing players to enjoy these special games.


15. Unibet Casino

No Deposit Bonus
-

First Deposit Bonus
Deposit £10 -- Get £40

Another of the 20 best UK casinos is the well-known Unibet. They know what UK players want too with games like Slingo and scratch cards available which are popular with British players. You can browse through Unibet’s vast selection of titles to find what you want to play, with plenty of flexible payment options too at this best British online casino.

Why Unibet Casino? – You can deposit 10 get bonus at Unibet, giving you more to play with when you get started.


16. William Hill Casino

No Deposit Bonus
-

First Deposit Bonus
100 Free Spins (no wager)

Being one of the most popular UK bookmakers around, you couldn’t really have a 20 best UK online casinos selection without William Hill Casino, right? Well, to be honest, we aren’t interested in what fits the bill aesthetically – it’s all about casino for us. Luckily, William Hill have made major upgrades to their slots play recently which has improved the experience considerably.

Why William Hill Casino? – Join for a dedicated casino bonus at this top 20 online casino UK.


17. Mr Green Casino

No Deposit Bonus
50 Free Spins

First Deposit Bonus
-

One of the UK’s most popular sites, so they had to make their way onto our list of best British online casinos in our view. They offer a wide range of top quality games from popular providers, and they continue to improve their platform for players – despite being around for several years. You can get free spins on card registration too.

Why Mr Green Casino? – They have their own exclusive slots made just for them, so you can play unique games here.


18. 777 Casino

No Deposit Bonus
EXCL: 150 Free Spins

First Deposit Bonus
-

777 give free spins on SMS verification for new UK players. This means you’ll get the above free spins offer once verifying your mobile number. They are also known to give out casino bonuses and other promotions to existing players. You can use all these on their exclusive in-house games too – so you can try out different games.

Why 777 Casino? – They have a great overall casino platform with years of experience behind the scenes, which paved the way for their entry into our top 20 UK casinos!


19. NetBet Casino

No Deposit Bonus
EXCL: 25 Free Spins -- code: SBXXXTREME

First Deposit Bonus
Up to 500 FS -- code: NBWELCOME500

The next of our top 20 online casinos UK is NetBet. They have been around for many years but still offer a great casino experience for British players. You can get the above UK bonus when signing up as a new player.

Why NetBet Casino? – Enjoy a variety of slots and casino games, alongside a sports betting platform for all different types of gambling under one roof.


20. Casino.com

No Deposit Bonus
-

First Deposit Bonus
100% up to £100 + 200 FS

Casino.com has a lot to live up to but they offer a wide selection of games and other features which more than meet the needs of such a name. You can get in touch with their support team 24/7, with loads of different casino promotions throughout the week. You can deposit 20 get bonus too, as shown above.

Why Casino.com? – Relatively low wagering is attached to your welcome bonus, making it very attractive (see: How to beat wagering requirements)


FAQ

We look at many different factors when deciding who makes our top 20 online casinos UK and in what order. We take into account things like:

  • How many payment options you can use
  • The general withdrawal speed
  • The overall number of games
  • Whether good providers are used – like Playtech, Microgaming, NetEnt, Yggdrasil, Play’n GO, Evolution, Quickspin and more.
  • If the bonuses are good and fair
  • The current popularity of each casino with our readers
We update the casinos here regularly to ensure that British players are always playing at top online casinos in UK. Each entry also has a specific reason why they’ve been selected.
If they’re good enough – of course!

In fact, you’ll find that a few of the latest casinos have already made the grade.

The best way to suggest a site is to leave a comment on our casino review. Tell us why you think they are one of the top online casinos in UK that you’ve played at.

As mentioned above, the opinion of our readers helps us to decide our 20 best UK online casinos – so a glowing review will give us a big indication about who is offering a top-quality experience.