100% up to £100 + 300 bonus spins


18+ Full T&C’s Apply. New players Only. £10 min deposit. £5 max bet using bonus. 40x wagering applies. Bonus valid for 14 days. 30 Spins will be credited instantly upon qualifying deposit + then 30 per day for 9 days on Starburst. Free Spins valid for 72 hours from credit. Max Free Spins winnings £100. Ewallets excluded.

Slotsia – Best Casino Comparison Site 2021

You’ve just arrived at Slotsia – the UK’s best comparison site for online casinos. This is the place to be if you like to get the top free spins and casino bonuses. Claim an offer through Slotsia and try out the most impressive new casinos!

As a UK player, you can find plenty of casino sites to choose from. We’re players ourselves, so we know what you’re looking for, and you’ll find that our professional advice really hits the nail on the head! Our highly-rated casino recommendations all feature a large number of top casino games, spiced up with innovative gamification features and, of course, the most generous bonuses and promotions.

More than that, we provide first-hand slot reviews and gambling advice for all players. Whether you’re a first-timer who’s never dabbled in online casinos before or you’re an experienced high roller who can afford to stake big and take advantage of VIP perks, you’ll find exactly what you’re looking for at Slotsia.

Our Top Casino Picks

What Can You Find at Slotsia?

We provide everything you need to start comparing casinos and games today. With our expert reviews and information, you can find the ultimate casino sites and bonuses to make the most out of your online gambling experience.

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Gold Cards icon Online Casino Recommendations

Before we recommend a casino to you, we evaluate it thoroughly and fairly. All of our casino reviews are honest. We’ve reviewed over 190 different UK casinos and we’re adding more every week!

Present Icon The Best Casino Bonuses

Who doesn’t love a bonus? There’s nothing more disappointing than signing up to a casino and getting a rubbish offer. Through us, you can find and claim the best bonuses, including exclusive free spins and no deposit bonuses.

Bar icon Slot Reviews

What’s popular might not necessarily be worth your time or money! Our detailed slot reviews tell you all about a game’s payout percentage (RTP), bonus features and volatility. That way, you can choose which slot to play based on facts rather than fame.

Diamond Icon The Latest Casino Sites

New casinos give out the biggest and best casino bonuses! That’s why we’re constantly finding the latest sites where you can sign up as a UK player. Thanks to us, you’ll never miss an epic new deal!

red 7 icon Casinopedia Articles

In our casino encyclopedia, we cover all sorts of topics from seasonal bonuses to game RTP, volatility and much more. Browse through our articles and become a casino expert in no time.

The Best Online Casinos

This is our current selection of the best online casinos that can be enjoyed by players located in the United Kingdom. Every single casino we recommend was thoroughly checked and evaluated by our team of professional casino connoisseurs. Take a look and find the one that suits you the most! You can click on the link to go to the casino, or read our full casino review for additional information to help you weigh up your options.

Playluck Casino
Welcome Bonus Bonus up to £200 plus 100 Extra Spins + 100 Extra Spins
Casino Highlights
  • 1st deposit 100% matched to £50
  • Bonuses over your first 4 days
  • Launched in 2020 📆
Full terms and conditions apply. Offer valid upon 4 deposits. New players only, 18+. Minimum deposit £20. Welcome package split over 4 deposits, 35x wagering applies.
Paddy Power
Welcome Bonus 100 Free Spins No Wagering Activate using code: PGCTV1
Casino Highlights
  • 100 free spins upon registration
  • Further 100 spins on 1st deposit
  • Daily jackpot games
18+. 1) To take part, you must register via the registration code PGCTV1 and opt in. 2) Get SMS-verified by supplying a valid telephone number. 3) Enter the validation code received by SMS to redeem the free spins. 4) Free Spins are valid on any of our Daily Jackpot games. 5) Free Spins will expire in 10 days from receipt of the offer. Full terms apply. Always gamble responsibly.

Find Free Spins Bonuses

For a large choice of free spins bonuses, you’ll find no better comparison site than Slotsia. These are our favourite offers and you can claim them through the direct links, greatly simplifying your search for spins! It is a good strategy for you to visit our dedicated Free Spins page from time to time, where you can find out more about how to compare offers. Pick up hundreds of spins on your first deposit or get some no deposit spins and no wager free spins through our exclusive offers.

Leo Vegas
Welcome Bonus 10 No Deposit Free Spins & Unlock up to £100 + 20 Wager-Free Spins
Casino Highlights
  • 10 No Deposit No Wager Free Spins
  • Award-Winning Mobile Casino
  • Exclusive Games
18+, T&Cs apply. New reg only. Opt in & deposit £10, £25 or £50 within 7 days & further 7 days to wager cash stakes 35x to unlock reward (£50 on 2 deposits). 3 day exp. Wagering/game contributions vary. 10 wager-free spins x10p to added to Book of Dead with each qualifying deposit, 3 day expiry. 18+ FULL T&Cs apply 18+
Pink Casino
Welcome Bonus Up to £150 and 50 Free Spins on Book of Dead
Casino Highlights
  • Deposit bonus up to £150
  • 50 Wager-Free Spins Available
  • Great array of slots

Full T&Cs apply. New players only. Minimum deposit of £10 applies. 35x wagering and 7 days to claim offer. 50 wager free spins are worth 0.10p each on Book of Dead. 3 day expiry applies. 18+

Get No Deposit Offers

We know how many of you are looking for casino bonuses that you can get without having to make a deposit. We’ve found the best UK casinos that offer bonus money up to £5 or £10 free! For the slots players among you, we also know which are the best casinos that offer no deposit free spins. Here are our top no deposit offers! Read more about free casino offers right here at Slotsia. We can help you decide which offer to claim, by providing inside information on wagering requirements, max cash out and other sneaky terms and conditions that might affect your winnings.

Leo Vegas
Welcome Bonus 10 No Deposit Free Spins & Unlock up to £100 + 20 Wager-Free Spins
Casino Highlights
  • 10 No Deposit No Wager Free Spins
  • Award-Winning Mobile Casino
  • Exclusive Games
18+, T&Cs apply. New reg only. Opt in & deposit £10, £25 or £50 within 7 days & further 7 days to wager cash stakes 35x to unlock reward (£50 on 2 deposits). 3 day exp. Wagering/game contributions vary. 10 wager-free spins x10p to added to Book of Dead with each qualifying deposit, 3 day expiry. 18+ FULL T&Cs apply 18+
mFortune Casino
Welcome Bonus Bonus up to £100 Free £10 when you register
Casino Highlights
  • £10 on registration
  • Bonus up to £100 + 100 bonus spins

18+. New players only. Welcome bonus expires after 7 days. Up to 10 (20p) free spins on Super Win 7s for 10 days, Min Deposit £10. Winnings paid as bonus credit. Expire 00:00 every day. Max withdrawal from free spins and welcome bonus winnings £50. Up to 200% deposit match of first deposit (Min £10). Max £100 awarded as bonus credit. 20x wagering on bonus credit. Withdrawing Unspent Qualifying Deposit will exclude the player from these promotions. T&Cs apply.

Discover New Casinos

Slotsia is an essential resource for every passionate casino player; we help you learn about new casinos before everyone else! We regularly report on all new developments in the iGaming scene and review new sites as soon as they are launched. Instead of looking all over the web for the presence of new casinos, you can quickly scan our list to find the latest casino bonuses. Discover more newly-launched casinos and what we think about them on our New Casinos page. Find out why these are usually some of the best sites to play at!

STS Casino
Welcome Bonus Matched first deposit up to £100
Casino Highlights
  • £100 matched deposit
  • Great game selection
  • Sports Betting
18+. New depositing on customers only. Promotion from 08/06/2021 until further notice. Once the deposit is made the bonus is activated. Deposit method restrictions apply. Bonus code required during the first deposit, min £10 deposit. The bonus consists of a 100% deposit amount match. The max bonus available is £100. Bonus & deposit wagering requirements x35 within 7 days on selected slots only. Real money and bonus money will be used evenly when wagering requirements are active. Individual bonus funds bets £1 max. Full T&Cs apply.
Slots n’Play Online Casino
Welcome Bonus Up to £100 and 100 extra spins
Casino Highlights
  • Great welcome offer
  • Huge game selection
  • Mobile first
18+. New players only. Terms and conditions apply. Valid over 4 deposits. Minimum deposit £20. 35x wagering.

Claim Exclusive Bonus Codes

At Slotsia, you can find exclusive Welcome Bonuses for new players that aren’t available anywhere else! These offers can only be redeemed with a bonus code. With your code, you can claim bonus money or free spins when you sign up and make your first deposit. See below for our top bonus code offers, and don’t forget to visit our dedicated page to find more exclusive offers and a guide on how to claim them!

Slotsia Exclusive MrQ Casino
Welcome Bonus Up to 30 Free Spins + no wagering Activate using code: TED30
Casino Highlights
  • Up to 30 Free Spins with Bonus Code
  • No wagering requirement on bonuses ever!
  • Great for bingo fans as well as slot gamers
Bonus code offer: 18+. New Players Only. First deposit only. Min deposit & spend £10. Max 30 spins on Ted at 20p per spin. Spins credited upon spend of £10. Full T&Cs apply. Free spins must be used within 48 hours of qualifying. All winnings are uncapped and credited to your real money balance. Full T&Cs apply.


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Frequently Asked Questions

Slotsia is a secure website, and we use encryption technology to ensure your safety. When visiting us, you will see a small padlock in the address bar of your browser that confirms this. We also take steps to protect your privacy. You can read about how we process your personal data in our privacy policy.

Our casino reviews are written independently by our resident experts, who are players themselves. Our honest reviews and ratings are not influenced by the casinos in any way. When reviewing a casino, our team looks at the casino’s welcome bonuses, games, support, payments and much more before coming to a conclusion.

At Slotsia, we don’t just recommend anything because it’s available. As industry experts, we have the experience and knowledge to be able to effectively compare casinos and bonuses so that we can tell you what the best UK casinos and bonus deals are. Similarly, we know which games and game developers are worth your time. For more information, you can read our detailed reviews.

If you read one of our highly-rated slot or casino reviews and you want to try it out, you can follow the link provided to play. These are affiliate links and we may receive a small commission if you choose to use them. This helps us to stay independent and continue to offer you honest reviews of games and casinos.