Online Casino UK

UK online casinos are among the best in the world, we shares UK casino bonuses for the best slots sites for British players here. All these UK casinos offer incredible slots and games on high quality websites that are playable on mobile, tablet, desktop or laptop wherever you are.

Great Britain has taken a position at the forefront of the online gambling revolution by adopting a legislated and controlled approach instead of an outright ban.

Check out the best UK Casino Bonus Sites here:

UK Online Casinos are now among the most strictly regulated in the world. With the UK industry taking the lead on regulation and backed by bookmaking giants like William Hill, Betfair and Coral, it has grown into a world leading market.



Get 30 Bonus Spins, WAGER FREE to play on the Valhalla slot!

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*Available to new UK MrQ Casino customers only. First deposit only. Min deposit & spend £10. Max 30 spins on VALHALLA at 25p per spin. Spins credited upon spend of £10. Full T&Cs apply.

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100 Free Spins No Deposit + 100 Extra Spins when you deposit!

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New Customers from UK & IRL only. Deposits made with e-wallets are not valid for this promo. Bonus wagering x35 on eligible games. Winnings from bonus capped at £/€500. Spins available after bonus is redeemed/lost. Opt in required. Full T&C’s apply.

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Get 30 Free Spins No Deposit Required!

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*18+ only. T&Cs Apply. ALWAYS GAMBLE RESPONSIBLY.  *Strictly 18+ Offer open to new customers using promo code ARCFS1 when registering. No wagering required on free spins. Each free spin will hold a value of €0.20 per spin. Free spins available for 7 days after qualifying.

leovegas UK


Get 10 No Deposit Spins on registration at Leo Vegas!

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Strictly 18+ only. Bonus Terms & Conditions 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+



Get up to 90 Wager-Free Spins with your first deposit!

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Strictly 18+ only. Terms & Conditions apply.First time depositors only. Min deposit £10. For every £1 you deposit, 1 Free Spin will be credited. Up to 50 Free Spins on Book of Dead. Spin Value: £0.10. After first deposit you may claim 40 Extra Free Spins by visiting the Kicker Section. No min withdrawal. Offer cannot be used in conjunction with other offers. OJO’s Rewards and Game Play policy applies.

Online Casinos UK

As casino players, we need to be cautious and ensure we are playing at licensed and secure online casinos. This isn’t always an easy task as there are so many online casinos out there to choose from. This is where Bonus Giant comes in! We have searched the length and breadth of the internet to bring you the very best casinos for UK players.

We ensure each of our featured casinos is licensed to provide a safe gambling space for our players based in the UK. We do also feature casinos that are not available to UK Casino players, so ensure you are on the right page for our UK Casinos before you start!

We regularly update our casino list, so make sure ensure you subscribe to hear news of any new casinos, new slots or no deposit bonus offers that you just can’t miss!

Mobile Casinos UK

Any worthwhile casino must also offer the option to access the casino site on a mobile device. Thankfully this is pretty standard these days as mobile technology has come on leaps and bounds. However, the quality of mobile casinos can vary drastically.

In most cases, the casino will have a responsive version that can be accessed through your mobile browser. Some casinos may even have their own native apps so you can have the casino site right there ready to go whenever you want to play. Check what system requirements you need and always ensure you are playing within a secure internet connection before you start.

Finding the best UK online casinos

When choosing an online casino there are several things to look for to ensure you get the best playing experience possible.

  • UK licensed – if you are based in the UK, you are going to want to ensure that your chosen casino site is licensed by the UK Gambling Commission. This is one of the strictest regulators in the industry, so any casinos that feature their endorsement are pretty solid choices.
  • Support – it’s also important to have a robust player support service at your disposal. Access to live chat is a must, and if they have 24-hour support available, even better. We look at the response times and quality of replies so you know what to expect.
  • Banking options – when we play at an online casino, we want to be able to deposit instantly as well as enjoy fast withdrawals. We will look at the available banking methods at each casino, what the minimum and maximum deposits and withdrawal are and those all-important cash out times!
  • Software and games – not every casino fan is looking for the same games, so our casino review will provide information about the kinds of games available as well as their featured software options. Whether you are looking for an extensive live casino, sports betting or simply thousands of slots, we have a host of options available!
  • Mobile gambling – the vast majority of UK casino players opt to play on their mobile device choosing to place a quick bet on the latest football match or enjoy a few spins on their favourite slot. Our featured casinos offer mobile gaming with mobile-friendly payments and a mobile optimised performance so none of the fun is lost while you enjoy gaming on the go.
  • Bonuses – there is a whole variety of casino bonuses waiting out there, so it’s worthwhile shopping around for the best deals. No deposit free spins, first deposit bonuses, cashback, the list of offers goes on and on, but ensure you carefully read up on all of the terms before you sign up to avoid any surprises or disappointment later on.

UK Online Casino Licensing and regulation

The aim of the UK Gambling Commission is to make online gambling a zero-harm activity, which they hope to achieve through more control of the advertising messages used by both the casinos themselves and by websites like this one, through better checks and approvals on players spending and playing habits, and through control of the types of games people are playing. While we are always keen to promote the fun side of gambling, we also recognize the potential for people to become addicted or to develop problem gambling habits that are no fun at all. We advise UK players to check the 18 website for help and advice – it’s a really good service!

The gambling industry has been very responsive and keen to change to protect its position. When we promote UK brands they often audit our reviews and the way we describe their bonuses and promotions to make sure we are being clear about wagering requirements and other terms and conditions. It is in everyone’s interests to ensure that UK casino players understand what they are signing up for!

Best UK Online Casinos

UK online casino players can use our reviews and lists to help find the best casino bonuses and find out which sites have the best online casino games. There are also some other sites we can recommend that list the Best UK Online Casinos to help you choose the best place to play slots. Whether your searching for the top No Deposit Bonuses or free spin offers or looking for the greatest mobile casino gaming experience online, we can help narrow the search. No matter if you love online slot games like Book of Dead or Starburst, slot machines, progressive jackpots, table games or even live casino action there’s a platform out there to provide you with the casino experience that you are looking for.

In addition to casino games, UK gamblers can weigh up the pros and cons of each casino’s payment options, customer support credentials and wagering requirements imposed on any of their casino bonuses. It’s also recommended to be mindful of what t&cs apply, whether or not it’s an ‘opt-in required’ offer and if there’s a 30-day expiry in place.

UK Casino Bonuses

Finding the best bonuses isn’t as easy as it first seems. They can vary greatly and what can appear to be generous at first, can actually prove to be worthless, particularly if you are dealing with excessively high wagering requirements.

Seeking out no deposit bonus cash, free spins no deposit bonuses, first deposit bonuses, free spins with a deposit and all manner of other offers is what we do on a daily basis. Our UK casino reviews pick out the best of the bunch with a variety of offers to attract all player preferences.

Knowing what to look for can help when choosing the right casino and bonus for you. Here are the key things to check before you sign up to any casino offer:

  • Free spins – if your bonus offer includes free spins, are they based on making a qualifying deposit or are they issued as part of a no deposit bonus offer? Which game can the free spins be used on and what is their value? Spins may also expire after a certain period of time so make sure you use them before you lose them!
  • Deposit bonuses – check what deposit you need to make to claim your bonuses and what the percentage bonus amount will be. There will often be a maximum bonus amount in place. Wagering requirements will typically apply as well as limits on winnings and the maximum stake size you can make with your bonus funds.
  • Wagering requirements – the majority of bonuses will come attached with wagering requirements. This is the number of times you’ll need to play through your bonus funds or free spins winnings before you can cash out. The lower the playthrough requirements the better. Shop around for the best bonuses and lowest wagering requirements. There are even wager free bonuses available occasionally.

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