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UK's Top 10 Best Online Casinos of 2021

Play at the top-rated online 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 factors. 

Casino Site

Our Rating

UK Gambling License Number

Casimba

10

52894

PlayOJO

9.8

39326

Mr Green 

9.8

39264

Mansion Casino

9.7

39448

Grosvenor Casinos

9.7

38750

32Red 

9.7

39430

Dream Vegas

9.6

52894

888 Casino

9.6

39028

The Sun Vegas

9.5

45110

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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

 

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10
Dream Vegas Casino

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 £400 on your 1st deposit, 40% match up to £3000 on your 2nd deposit, and 60% match up to £1500 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 applyBeGambleAware.org

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9.9
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

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9.9
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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9.8
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

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9.8
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

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9.7
Grosvenor Casinos

18+. New players only. 

FIRST DEPOSIT ONLY. MIN £20 DEPOSIT. 5X WAGERING. KEEP IT FUN – SET YOUR DEPOSIT LIMIT. 

T&Cs apply. BeGambleAware.org


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9.7
Casino Lab

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

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9.6
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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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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9.5

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
10
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 £400 on your 1st deposit, 40% match up to £3000 on your 2nd deposit, and 60% match up to £1500 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 applyBeGambleAware.org

Our Score
9.9
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
9.9
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
9.8
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
9.8
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
9.7
Our Score

18+. New players only. 

FIRST DEPOSIT ONLY. MIN £20 DEPOSIT. 5X WAGERING. KEEP IT FUN – SET YOUR DEPOSIT LIMIT. 

T&Cs apply. BeGambleAware.org


Our Score
9.7
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
9.6
Our Score

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
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
9.5
Our Score
Advertiser Disclosure

The purpose of this website is to offer consumers a comparison platform for products to determine their suitability for consumer needs. This service is provided free of charge as a result of advertising contributions from the companies whose products are represented here. Based on the advertising compensation amount, the placement and rating of individual products may differ. These placement decisions are also made by considering user experience, review findings, conversion rates, and product popularity. While we work hard to provide a comprehensive and transparent comparison of market offerings, we do not guarantee the inclusion of all relevant or competing products in every market segment.

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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!

We Consider A Huge Range Of Factors In Our Reviews
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Online Casino Reviews

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

We tell you about games, software, bonuses, offers and promotions, customer complaints and support, terms and conditions, deposits,  withdrawal and payment options and more.

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 key aspects of play that  need to be checked before choosing an online casino, such as strategies and table limits, payouts. 

All this puts you in the perfect position to have a great gambling session at your favourite casino sites.

Our casino reviews are all about quality. We only publish a review when we know it includes all the important information you need to know about the site.

We think like players when we review an online casino — because our guides are written by players for players.

We begin by creating an account. This tells us how simple it is for you to get set up with an online casino gambling site, the information you need to provide, the deposits you need to make, and the time it takes to be ready to place your first bets.

Then we play the games and place bets on the sports the casino has to offer.

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How We Review The Top Casino Sites

Our experts spend hours playing the best online casino slots titles, sitting at the finest online blackjack tables, wagering on the leading roulette wheels and testing all the sports we find. 

Our team does this on the website and the app. Why? Because we know you expect to play your favourite casino games and bet on your preferred games wherever you want to, not where a site tells you to. 

We record every experience we have throughout this journey and at the end of it we write it all down, highlighting all the good and bad things we’ve found — because no site is perfect but many of them get close.

This is why we’re certain our reviews give you the best insight into the UK’s leading gambling sites. 

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. 

Best Online Casino Bonuses

There are many great sites that offer bonuses to new and returning players. We’ve highlighted the ten which currently have the best casino offers for UK players.

How Casino Bonuses Work

Casino bonuses are really important for players and it’s very easy to understand how they work.

Casino bonuses work by providing you with the opportunity to play more of your favourite games. They do this by giving you the chance to boost the deposits you make or providing casino credit to use at the site you’ve chosen to bet at.

A key thing to know is that each bonus will have its own conditions. This means that to understand how a specific offer works, you must read the T&Cs. These will explain what you need to put into the bonus and what you get in return.


Wagering Requirements

Wagering requirements are one of the key things to know about online casino bonuses. 

In simple terms, a wagering requirement is the amount of your own money you need to wager before you can withdraw the winnings you make from an offer. This is represented as X times the amount of a bonus.


RTP

RTP stands for return to player and it’s something you should know about before deciding which online casino(s) you’re going to use. 

It’s the amount of money that’s paid back to players over time and is represented as a return to player percentage, such as 99%. This means that it’s your way of knowing how likely you are to win some cash when you play a casino game.


No Deposit Bonuses

No deposit bonuses are offers you can earn without depositing your own cash. They can be either a cash reward or free spins — for example, a casino site might have a spins no deposit bonus that gives you 50 free plays on a popular slot game.  

While no deposit bonuses are  one of the main bonuses you’ll find at a casino (along with free spins and welcome bonuses) it’s not that often you’ll see them at a UK site.

The reason for this is most online casinos ask that you deposit some money (even if it’s just £5) to be able to sign up for their bonuses.


Free Spins

Free spins are perhaps the best-known (and most popular) bonus offered by online casinos. They give you the chance to earn some free plays on slot games. 

Free spins  often come as part of a casino site's welcome package (you might be offered 100 free spins when you sign up) but many sites also advertise ad-hoc and ongoing free spins bonuses for their regular players. You can find these offers in the promotions section of the casino you’re using.


Types Of Casino Sites

There’s an enormous number of great online casinos for UK players to choose from. While many offer a lot of the same services — bonuses, games, and payouts — some sites specialise in certain areas. These are the key types of online casinos to look for and the best sites to use:

Beginner's Guide To Playing Online Casinos

There are three main ways to play casino games — in-home sessions, at a land casino, and at gambling sites. 

Online casinos are the most convenient way to play your favourite games and bet on your preferred sports. This is because the top sites in the UKallow you to wager from the comfort of your home or on the go with your phone. There are some other key benefits to playing online. 


Top 3 benefits of playing casino games online:

  1. Easier to use resources to help your gameplay

  2. Often a larger selection of games to choose from

  3. Casino bonuses for new and returning players

View Games Guides
Top Casino Games

Casino games are the single most important part of any online casino. They’re the reason you visit online casinos, offering entertainment, competition and the chance for you to win some cash — though, money shouldn’t be your sole reason for playing them.

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Slots

The most popular online casino game, with some sites offering thousands of titles.


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Blackjack

One of the best-known casino games and a favourite of James Bond.


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Roulette

A feature of many gambling films and shows, with its wheel a casino icon.


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Live Dealer

Live dealer is a great way to get the experience of a land casino from your home or phone. 


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How To Deposit At An Online Casino

Making deposits is vital to your gaming experience when betting at online casinos. You need to wager money on games to play them and you need to make deposits to be able to do this.

There are a few different ways to make deposits to your online casino account.

  1. Online payment services

  2. E-money transfer

  3. Cheques

  4. Bitcoin

  5. Debit card payment

  6. Direct bank transfers

There are plenty of secure payment gateways you can use to deposit money to your account.

UK's Top 10 Best Online Casinos - Online Casino UK Guide

You should use the deposit method you feel happiest and safest with. 

You can find out the deposit options available at an online casino by visiting its deposit and withdrawal options page. This will explain how to make a deposit using your chosen method.You should use the deposit method you feel happiest and safest with.

Withdrawing Online Casino Funds

Withdrawing money from your casino account is often a very straightforward process. You simply visit the deposits and withdrawals page and then follow the instructions.

However, there are some things you need to know about making casino withdrawals.

— You usually have to withdraw money using the same method you deposited the funds

— You may have to wait a while for the casino to process your request

— You could face restrictions on the amount of money you can withdraw in one go

How To Review Whether A Casino Is Safe And Secure

Feeling safe and secure when using an online casino is a minimum requirement.

These sites look after some of your most sensitive information — your card number, bank account details and photo ID — and you need to be sure they can be trusted.

There are a few simple things you can do to establish if a site is legitimate.

How to tell if a casino is legit and know that you’re gambling in a secure environment:

  1. See if the UK Gambling Commission icon is on the site

  2. Check for the Spelinspektionen logo on the site

  3. Review the currencies that it accepts

  4. Look for industry awards the site has won

  5. Read what your fellow players are saying

  6. UK Gambling Commission Licence

How To Stay Safe While Gambling

At OnlineCasinos.co.uk, our concern isn’t just that you have a fun time when you’re gambling. We also want to make sure you have a safe time. 

Player safety is also a top priority for the UK’s leading online casinos. One of the key ways they do this is by offering self-exclusion. This is where players tell the casinos that they don’t want to be allowed to use their site or app for a specific period of time. 

Sites also help their players to stay safe by including links and resources to a range of gambling support networks — so if you think you may need to speak to somebody about your gambling then you know where to turn.

These are the gambling authorities that are linked to by online casinos: 

  1. BeGambleAware

  2. Gamcare

  3. IBAS

  4. SENSE

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