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UK's Top 10 Best Online Casinos of 2021

Play at the top-rated casinos in the UK

OnlineCasinos.co.uk has taken a few of the top UK online casinos and personally tried them out. We have selected only the best online casinos so that you, the player, knows that you are being directed to a safe and reliable online casino. With online casino reviews, you can find the ideal online casino for you.

Best online casinos UK

The best online casinos in the UK offer outstanding games, the freedom to play on your preferred device, great bonuses and a range of other exceptional features. 

Some of these websites are made to be all-rounders, with every casino game catered for and a vast array of sports betting options available. Others are specialist sites aimed at specific players, such as live online casinos that let you get a land casino experience. 

While some of the UK’s top casinos offer free versions of their slots, blackjack, poker, roulette, or baccarat titles, what many players want is real money games — ones that give you the chance to win some cash while betting responsibly. 

That’s why we highlight the min and max wagers you can make at these sites and the payouts you could expect to get from the games they offer. 

About OnlineCasinos.co.uk

OnlineCasinos.co.uk is one of the UK’s most respected casino reviews sites. 

Our team is made up of people who love playing casino games and wagering on sports teams and players. 

That’s why you can trust what we say about the best online casinos — because we review how good we think a casino is to use based on our own experiences with these sites. 

How we review the top online casinos

Casino gambling is incredibly diverse and that’s why we consider a huge range of factors when reviewing the UK’s best online casinos. 

Games are the most important thing in our reviews. That’s why we look at the amount a site offers, the types in its catalogue, and if they can be played on your smartphone.  

But games aren’t the only vital part of online gambling. This is why our reviews also assess the payment gateways a site allows you to use, if it has a players community and a whole host of other factor

Casino SiteOur RatingUK Gambling License Number
888 Casino1039028
PlayOJO1039326
Mansion Casino1039448
Casimba9.952894
Dream Vegas9.852894
Mr Green 9.839264
Grosvenor Casinos9.738750
The Sun Vegas9.745110
32Red9.739430
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Casimba

18+. New players only. 1 bonus offer per player. Min. deposit £20. Max. bonus bet is £5. Bonus spins on selected games only and must be used within 72 hours. Bonus funds expire in 30 days, unused bonus funds will be removed. Bonus funds are 100% match up to £500 on your 1st deposit, 25% match up to £1000 on your 2nd deposit, and 50% match up to £500 on your 3rd deposit. Bonus funds are separate to Cash funds, and are subject to 35x wagering the total bonus & cash. Only bonus funds count towards wagering contribution.

Terms apply BeGambleAware.org

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10
Genesis Casino

18+. New players only. 

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. 30 Spins on Starburst will be credited instantly + then 30 per day for 9 days. Free Spins valid for 72 hours from credit. Max Free Spins winnings £100. Ewallets excluded.

T&Cs applyBeGambleAware.org

 

Rate it!

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9.9
PlayOJO

New Customer Offer

For every £1 deposited, 1 Free Spin will be credited to the players account up to 50 Free Spins (on Rich Wilde and the Book of Dead). Also, after the first deposit the player can claim an additional 30 Free Spins by visiting the Kicker Section. So the player can receive a total of up to 80 free spins. Please refer to the landing page for all the details.

For every £1 deposited, 1 Free Spin will be credited.

18+ Please Gamble Responsibly. Full T&C's Apply - Click Here  BeGambleAware.org

Rate it!

Read Review
9.8
MrQ

18+. First deposit only. Min deposit & spend £10. Max 30 spins on TED at 20p per spin. 

Spins credited upon spend of £10. 

Terms apply BeGambleAware.org

Rate it!

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9.8
The Grand Ivy

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. Only bonus funds contribute towards any wagering requirements.

Terms apply. BeGambleAware.org.

Rate it!

Read Review
9.8
All British Casino

18+. New players only.

Maximum bonus is 100% up to £100. No max cash out. Wagering is 35x bonus. Maximum bet while playing with a bonus is £5. Cashback is cash with no restrictions. Bonus excluded for players that deposit with Skrill or Neteller. Click here for full T&Cs

pay £100, play with £200

T&Cs apply. BeGambleAware.org

Rate it!

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9.7
Mansion Casino

18+. New players only.

New Customers. 5% cashback on day 1-7 deps, 10% on day 8-14. Max £1000 p/w. Max 1st deposit bonus £200, 2nd max £300. Min £20 deposit. 40x wagering, valid for 30 days. Game weighting, payment restrictions and betting limits apply. Casino Only. Offer terms and conditions apply T&Cs apply. BeGambleAware.org

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9.7
Mr Green Casino

18+. New players only.

Opt in required. New customers only. 1x per customer. Min. £20 deposit. 1st deposit only. Selected games only. Max. Bonus £50 35x wagering and 50 Free Spins at £0.10/spin on Lucky Mr Green 35x Wagering. Free Spins credited once deposit amount has been wagered. Bonus and Free Spins expire 7 days after issue. Game weighting, game, country, currency, player restrictions and terms apply.

T&Cs apply. BeGambleAware.org

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9.6
888 Casino

18+. New players only.

No Deposit Offer: New players only • £88 is granted in FreePlay (FP) • FP must be claimed within 48 hrs of receiving the email and expires after 14 days • FP wins are credited as bonus and capped at £15, exc. JP win • Special Offer: £20 min deposit • 200% up to £300 Bonus • Bonus wins are capped at £500 • To withdraw bonus & related wins, wager 50 x (bonus amount) within 21 days • Restrictions apply to deposit until wagering requirement fulfilled • Wagering req. vary by game • This offer may not be combined with any other offer • Withdrawal restrictions & full T&Cs apply: No Deposit Offer terms & Special Offer terms T&Cs applyBeGambleAware.org

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9.6
The Sun Vegas

18+. New players only.

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. 18+ Begambleaware.org. T&Cs apply

T&Cs apply. BeGambleAware.org

Rate it!

Read Review
9.5

18+. New players only. 1 bonus offer per player. Min. deposit £20. Max. bonus bet is £5. Bonus spins on selected games only and must be used within 72 hours. Bonus funds expire in 30 days, unused bonus funds will be removed. Bonus funds are 100% match up to £500 on your 1st deposit, 25% match up to £1000 on your 2nd deposit, and 50% match up to £500 on your 3rd deposit. Bonus funds are separate to Cash funds, and are subject to 35x wagering the total bonus & cash. Only bonus funds count towards wagering contribution.

Terms apply BeGambleAware.org

Our Score
10
Our Score

18+. New players only. 

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. 30 Spins on Starburst will be credited instantly + then 30 per day for 9 days. Free Spins valid for 72 hours from credit. Max Free Spins winnings £100. Ewallets excluded.

T&Cs applyBeGambleAware.org

 

Our Score
9.9
Our Score

New Customer Offer

For every £1 deposited, 1 Free Spin will be credited to the players account up to 50 Free Spins (on Rich Wilde and the Book of Dead). Also, after the first deposit the player can claim an additional 30 Free Spins by visiting the Kicker Section. So the player can receive a total of up to 80 free spins. Please refer to the landing page for all the details.

For every £1 deposited, 1 Free Spin will be credited.

18+ Please Gamble Responsibly. Full T&C's Apply - Click Here  BeGambleAware.org

Our Score
9.8
Our Score

18+. First deposit only. Min deposit & spend £10. Max 30 spins on TED at 20p per spin. 

Spins credited upon spend of £10. 

Terms apply BeGambleAware.org

Our Score
9.8
Our Score

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. Only bonus funds contribute towards any wagering requirements.

Terms apply. BeGambleAware.org.

Our Score
9.8
Our Score

18+. New players only.

Maximum bonus is 100% up to £100. No max cash out. Wagering is 35x bonus. Maximum bet while playing with a bonus is £5. Cashback is cash with no restrictions. Bonus excluded for players that deposit with Skrill or Neteller. Click here for full T&Cs

pay £100, play with £200

T&Cs apply. BeGambleAware.org

Our Score
9.7
Our Score

18+. New players only.

New Customers. 5% cashback on day 1-7 deps, 10% on day 8-14. Max £1000 p/w. Max 1st deposit bonus £200, 2nd max £300. Min £20 deposit. 40x wagering, valid for 30 days. Game weighting, payment restrictions and betting limits apply. Casino Only. Offer terms and conditions apply T&Cs apply. BeGambleAware.org

Our Score
9.7
Our Score

18+. New players only.

Opt in required. New customers only. 1x per customer. Min. £20 deposit. 1st deposit only. Selected games only. Max. Bonus £50 35x wagering and 50 Free Spins at £0.10/spin on Lucky Mr Green 35x Wagering. Free Spins credited once deposit amount has been wagered. Bonus and Free Spins expire 7 days after issue. Game weighting, game, country, currency, player restrictions and terms apply.

T&Cs apply. BeGambleAware.org

Our Score
9.6
Our Score

18+. New players only.

No Deposit Offer: New players only • £88 is granted in FreePlay (FP) • FP must be claimed within 48 hrs of receiving the email and expires after 14 days • FP wins are credited as bonus and capped at £15, exc. JP win • Special Offer: £20 min deposit • 200% up to £300 Bonus • Bonus wins are capped at £500 • To withdraw bonus & related wins, wager 50 x (bonus amount) within 21 days • Restrictions apply to deposit until wagering requirement fulfilled • Wagering req. vary by game • This offer may not be combined with any other offer • Withdrawal restrictions & full T&Cs apply: No Deposit Offer terms & Special Offer terms T&Cs applyBeGambleAware.org

Our Score
9.6
Our Score

18+. New players only.

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. 18+ Begambleaware.org. T&Cs apply

T&Cs apply. BeGambleAware.org

Our Score
9.5
Our Score

UK's Best Online Casinos Reviewed 

We, at OnlineCasinos.co.uk are here to help you in your journey through the maze of online casino sites. Our site is a one-stop-shop for all the information you could ever need about online casinos in the UK.

The reviews on OnlineCasinos.co.uk offer you unbiased and thorough information about the services offered at the casino. We show you the site’s best features and tell you about their often exciting and generous bonuses. For your convenience, direct links to the top UK online casinos are also available right here.

At OnlineCasinos.co.uk we understand that this exciting and dynamic world of online casinos is always changing and that you want to be updated in real time. We bring you the hottest news from the online casino industry and keep you informed of all that is happening with your favourite brands.

Find out here which new games have been released, where there are some exciting new promotions and what can be expected in the coming weeks from the most popular online casinos in the UK.

We keep you informed about only the top UK online casino brands to ensure that your gaming experience is safe, secure, enjoyable and we hope extremely lucrative! Read all about your favourite UK online casino here and be the first to know all the action!


READ REVIEWS
Cat Wilde And The Doom Of Dead
Cat Wilde And The Doom Of Dead

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Latest Online Casino Games
Slots, Poker, Blackjack & More

Online casino software providers, like Microgaming, launch new casino games on a regular basis and these can be found at the online casinos that they power.

New games are an exciting addition to any casino and are sometimes associated with great promotions and offers, such as bonus spins and free money deposit top-ups.  

Trialling the latest online casino games can be fun and rewarding. We find the games for you so you can focus on getting the most out of them.

Many of the latest online casino games follow themes that are popular in the media. With our reviews, find out which new online casino games have themes related to movies, pop stars, famous cartoon characters and even world events. 

The fun of playing on one of the latest online slot games can be doubled if the theme is one of your celebrity favourites.



View all latest games
Popular Online Casino Tips
UK's Top-Rated Real Money Online Casinos
UK's Top-Rated Real Money Online Casinos

Looking for the best online casinos with real money games? We've reviewed the top ones, covering win rates, payout speed,...

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21st February 2020
Best Casino Sites
Best Casino Sites

Looking for the best casino sites? Our guide lists the UK's top sites & explains what's so great about them, from slots...

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31st January 2020
What Are The Best Online Casinos For New Players?
What Are The Best Online Casinos For New Players?

Are you a new player looking for the best online casinos? This guide picks the three top ones, each of which has different...

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11th October 2019
New UK Online Casinos 2019: 12 Of The Best New Casino Sites
New UK Online Casinos 2019: 12 Of The Best New Casino Sites

2019 is already well underway and it’s been a great year of discovery here at Online Casinos. We’ve played at...

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Online Casino Reviews

The reviews you can find on Online Casinos are designed to help you find the ideal online casino for you. 

We tell you about games, software, bonuses, offers and promotions, customer service support, conditions, deposit, and withdrawal and payment options. 

As we explore the pros, cons, and finer details of every major gambling, betting, and gaming platform, we aim to help you make an educated decision about the online casinos best suited to your needs and preferences so you can gamble safely.

Our reviews are also designed to help you understand certain aspects of play which need to be checked before choosing an online casino, including:

  • Can I download the software? 
  • Does the casino have payment methods that suit me? 
  • Is this casino safe and reliable? 
  • Is there 24/7 customer support should I have any problems? 

A good online casino review will answer all these questions and more. Ours go above and beyond what you’ll find at other online casino review sites as they are written by gamers, for gamers, prioritising fun and responsible gambling.  


View Online Casino Reviews
Award-winning Online Casinos

One of the measures of the very best online casinos is whether it’s an award-winning casino. The International Gaming Awards is the industry leader when it comes to dishing out awards and these are the IGA’s best online casinos since 2010: 

Best Online Casino 2018
Mansion, Winner of Online Casino Operator of the Year
Best Online Casino 2017
LeoVegas, Winner of Online Casino Operator of the Year
Best Online Casino 2016
LeoVegas, Winner of Online Casino Operator of the Year
Best Online Casino 2015
Mr Green, Winner of Online Casino Operator of the Year
Best Online Casino 2014
Mr Green, Winner of Online Casino Operator of the Year
Best Online Casino 2013
Mr Green, Winner of Online Casino Operator of the Year
Best Online Casino 2012
32Red, Winner of Online Casino Operator of the Year
Best Online Casino 2011
PartyGaming, Winner of Online Casino Operator of the Year
Best Online Casino 2010
Ladbrokes, Winner of Online Casino Operator of the Year
Best Online Casino 2009
Casino, Winner of Online Casino Operator of the Year
Best Online Casino Games Guide

A guide to finding the best online casino games for you. With basic rules, this general casino games guide will give you a taste of some of the most popular online casino games around and explore why they are the best of the bunch. 

Some of the games we cover are: 

  • Slots
  • Blackjack
  • Roulette
  • Poker (Pai Gow Poker, 3 Card Poker, Video Poker)
  • Fruit Machines
  • Craps
  • Live Casino

Having a feel for the game will help you make the best choice of which games to play.

Our online casino games guide provides you with the tools you need to choose the online casino game you love best, helping you to become an even better player and increasing your chances at winning more money. 

By looking at the rules and tips in our online casino games guide, your gameplay will improve tremendously.


VISIT GAMES GUIDE
How To Play
Frequently Asked Questions