Here you can find the best online casino sites, ranked by free spins, welcome bonuses, and other important features. Let Odds Scanner help you choose the best option!
Top Online Casino Sites in the UK - 2025
Safe and reliable
Fast withdrawals
Licensed sites
Updated on:
May 22
New customers only. 7 days to place qualifying bet of £10 at 1/1 (2.0) to receive 4 x £10 Free Bets: 1 x £10 football, 1 x £10 horse racing & 2 x £10 Bet Builders. Free Bets cannot be used on e-sports and non UK/IE horse racing. 7 day expiry. Exclusions apply. Stake not returned. 18+. T&Cs apply.
New bettors; Code SPORT; Wager deposit & bonus 8x; Max qualifying bet stake=initial bonus; Valid 60 days; Min odds, bet and payment method exclusions apply; T&C apply; 18+
New customers only. Must bet £10 total on 4+ legs, min odds 3/1 (4.0). Awarded as 4x £5 Free Bets + 50 Free Spins, valid for 7 days. 18+. Full T&Cs apply.
New members only. £10+ bet on sportsbook (ex. virtuals) at 1.5 min odds, settled within 14 days. Free Bets: accept in 7 days, valid 7 days on sportsbook only. 2x£5 Free Bets for Bet Builder only. Stake not returned. T&Cs + deposit exclusions apply. Bet Responsibly. GambleAware.org. 18+
New customers only. Register with BETFRED50. Deposit £10+ via Debit Card and place first bet £10+ at Evens (2.0)+ on Sports within 7 days to get 3 x £10 in Sports Free Bets & 2 x £10 in Acca Free Bets within 10 hours of settlement. 7-day expiry. Eligibility & payment exclusions apply. Full T&Cs apply.
This Welcome Bonus (the “Promotion”) is offered to you by kwiff Limited (“kwiff”, “we” or “us”). By participating in the Promotion, participants agree to be bound by these terms and conditions, which apply in conjunction with the kwiff Terms and Conditions and Betting Rules. 18+, BeGambleAware, Play Responsibly, #AD
New members only. £10 min bet on sportsbook (ex. virtuals) at 1.5 min odds, placed & settled in 14 days of sign-up. Win part E/W bets. Free Bets: accept in 7 days, valid 7 days on sportsbook only . Stake not returned. T&Cs apply. Bet Responsibly. GambleAware.org. 18+
18+ New customers only. Opt in, bet £10 at odds 2.00+ within 7 days, no cashout. Get 6x £5 Free Bets, set events at odds 2.00+. 7 day bonus expiry. Debit Card / Apple Pay payments only. Click for T&Cs. Please Gamble Responsibly.
Min deposit requirement. Free Bets are paid as Bet Credits and are available for use upon settlement of qualifying bets. Min odds, bet and payment method exclusions apply. Returns exclude Bet Credits stake. Time limits and T&Cs apply. 18+, BeGambleAware, Play Responsibly, #AD
18+ New customers only. Opt in and bet £10 on any sport at odds of 2.00+ within 7 days of registration. Get a £5 Free Bet on sports and a £5 Slot Bonus for Big Bass Return to the Races, 30x wagering, max redeem £125. Bonuses expire in 7 days. Offer valid until 17:00 on 05/04/2025. Scroll down for T&Cs. GambleAware.org | Please gamble responsibly. 18+
3 simple steps to claim your exclusive bonus:
1
Choose your betting site.
Select your preferred betting site from our ranking and click on “Claim Bonus“.
2
Create your account
Once step 01 is complete, you will be redirected to securely register with your chosen betting site.
3
Deposit to play
Next, you can deposit your desired amount to play, now with your bonus included.
Odds Scanner – Your Ultimate Guide to Online Casinos in the UK
Odds Scanner is much more than just a comparison site for online casinos.
We provide a comprehensive hub with detailed comparisons of casino bonuses, in-depth reviews of platforms, helpful tools, up-to-date guides, and the latest news on online casinos in the UK. Our services help players discover the best options and make the most of their online gaming experience.
Our Mission is to Enhance Your Online Casino Experience
At Odds Scanner, our primary goal is to help you get the most out of the online casino world. With our bonus comparison service, you can find the best promotions and offers available from leading casinos across the UK.
In addition, we provide expert insights and guides to help you make informed choices—from selecting the right games to strategies for maximising your winnings.
The Best Resource for Online Casino Comparisons
When it comes to playing at online casinos, nothing is more important than choosing the right platform. With Odds Scanner, you can compare bonuses, promotions, and features from hundreds of casinos quickly and reliably.
Here are some reasons why Odds Scanner is the best online casino comparison service in the UK:
- Largest selection of casinos: Our platform covers a wide range of online casinos, ensuring that you always find options tailored to your gaming style and budget.
- Advanced technology: Our integrated system collects and organises data accurately and reliably, so you can access real-time updates.
- Team of experts: We have a dedicated team passionate about online casinos, providing tips, reviews, and strategies to help you play smarter.
- All-in-one content: Beyond casino comparisons, we offer guides to games, payment methods, industry news, and much more.
- Unlimited access: Odds Scanner is always available—24 hours a day, 7 days a week—to provide you with the most up-to-date and relevant information.
What Sets Us Apart?
Our dedication to quality and our passion for online gaming are what set us apart. Read on to discover how we stand out from the competition:
- Bonus Comparison: Find the best promotions and welcome bonuses, including free spins, deposit matches, and more.
- Game Guides: Learn all about popular casino games, including slots, blackjack, roulette, poker, and others.
- Detailed Reviews: We provide honest, in-depth reviews of leading online casinos, covering everything from available games to withdrawal methods and customer support.
Player Community – Connect and Share Experiences
At Odds Scanner, you’re part of a global community of casino enthusiasts. Our platform is a hub for players looking to exchange tips, share experiences, and explore strategies together.
News and Guides – Stay Informed
In addition to comparisons and reviews, we keep you updated with the latest industry news and publish detailed guides to help you navigate the online casino landscape.
Organised and Optimised Website
Our website is designed to be user-friendly and accessible on any device, whether desktop or mobile. You’ll find all the information you need quickly and intuitively.
Odds Scanner – Where Players Feel at Home
Whether you’re a novice or a seasoned player, Odds Scanner is the ideal destination to explore and enjoy the best of online casinos in the UK. We compare bonuses, provide in-depth reviews, and help you play with confidence.
Limited Exclusive Offers
Take advantage of the exclusive offers we’ve prepared for you!
BetMGM
4.9
New customers only. 7 days to place qualifying bet of £10 at 1/1 (2.0) to receive 4 x £10 Free Bets: 1 x £10 football, 1 x £10 horse racing & 2 x £10 Bet Builders. Free Bets cannot be used on e-sports and non UK/IE horse racing. 7 day expiry. Exclusions apply. Stake not returned. 18+. T&Cs apply.
10bet
4.8
New bettors; Code SPORT; Wager deposit & bonus 8x; Max qualifying bet stake=initial bonus; Valid 60 days; Min odds, bet and payment method exclusions apply; T&C apply; 18+