Welcome to Casino Sites Online, your one-stop-shop for casino information, guides and the best casinos online to claim bonuses. Here you will discover a range of detailed casino reviews to help you choose from the best casinos online and learn everything you need to know about the types of games on offer at the best online casinos.



Best Casino Sites 2021


ūü•áLadbrokes Casino

Deposit £10 get £50 to play with! *Full T&Cs apply 18+. New players only. One bonus offer per player. Minimum deposit £10. 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.


Coral Casino

Deposit £10 get £50 to play with! *Full T&Cs apply 18+. New players only. One bonus offer per player. Minimum deposit £10. 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.


William Hill Casino

100% Deposit Bonus Upto £300
*Full T&Cs apply 18+. New players only. One bonus offer per player. Minimum deposit £20. 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.


Casino Planet

casino planet
100% Deposit Bonus Upto ¬£100 + 200 Bonus Spins *18+ Full T&C’s Apply. New UK players Only. ¬£10 min. deposit. ¬£5 max. bet using Bonus. 40 x wagering applies. Bonus valid for 14 days. 30 Spins on pre-selected games will be credited instantly + then 30 per day for 9 days. Free Spins valid for 72 hours from credit. Max. Free Spins winnings ¬£100. Skrill + Neteller excluded.


Kassu Casino

100% Deposit Bonus Upto ¬£100 + 300 Bonus Spins *18+ Full T&C’s Apply. New UK players Only. ¬£10 min. deposit. ¬£5 max. bet using Bonus. 40 x wagering applies. Bonus valid for 14 days. 30 Spins on pre-selected games will be credited instantly + then 30 per day for 9 days. Free Spins valid for 72 hours from credit. Max. Free Spins winnings ¬£100. Skrill + Neteller excluded.



Casoola Casino

100% Deposit Bonus Upto ¬£100 + 200 Bonus Spins. *18+ Full T&C’s Apply. New UK players Only. ¬£10 min. deposit. ¬£5 max. bet using Bonus. 40 x wagering applies. Bonus valid for 14 days. 30 Spins on pre-selected games will be credited instantly + then 30 per day for 9 days. Free Spins valid for 72 hours from credit. Max. Free Spins winnings ¬£100. Skrill + Neteller excluded.


Genesis Casino

100% Deposit Bonus Upto ¬£100 + 300 Bonus Spins *18+ Full T&C’s Apply. New UK players Only. ¬£10 min. deposit. ¬£5 max. bet using Bonus. 40 x wagering applies. Bonus valid for 14 days. 30 Spins on pre-selected games will be credited instantly + then 30 per day for 9 days. Free Spins valid for 72 hours from credit. Max. Free Spins winnings ¬£100. Skrill + Neteller excluded.


Casino Lab

100% Deposit Bonus Upto ¬£100 + 200 Bonus Spins. *18+ Full T&C’s Apply. New UK players Only. ¬£10 min. deposit. ¬£5 max. bet using Bonus. 40 x wagering applies. Bonus valid for 14 days. 30 Spins on pre-selected games will be credited instantly + then 30 per day for 9 days. Free Spins valid for 72 hours from credit. Max. Free Spins winnings ¬£100. Skrill + Neteller excluded.


Fruit Kings Casino

100% Welcome Bonus up to £50 plus 100 Bonus Spins!
*Full T&Cs apply 18+. New players only. One bonus offer per player. Minimum deposit £20. 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.


Peachy Games

100% Deposit Bonus Upto £50 + 20 Bonus Spins
*Full T&Cs apply 18+. New players only. One bonus offer per player. Minimum deposit £10. 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.


Casushi Casino

100% Deposit Bonus Upto £50 + 50 Bonus Spins
*Full T&Cs apply 18+. New players only. One bonus offer per player. Minimum deposit £10. 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.

Vegas Hero


100% Deposit Bonus Upto ¬£100 + 200 Bonus Spins. *18+ Full T&C’s Apply. New UK players Only. ¬£10 min. deposit. ¬£5 max. bet using Bonus. 40 x wagering applies. Bonus valid for 14 days. 30 Spins on pre-selected games will be credited instantly + then 30 per day for 9 days. Free Spins valid for 72 hours from credit. Max. Free Spins winnings ¬£100. Skrill + Neteller excluded.

Pokerstars Casino

Deposit £10 & get 100 FREE Spins! *Full T&Cs apply 18+. New players only. One bonus offer per player. Minimum deposit £10. 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.

Playzee Casino

100% Deposit Bonus Upto £300 + 100 Bonus Spins *Full T&Cs apply 18+. New players only. One bonus offer per player. Minimum deposit £10. 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.

Race Casino

100% Deposit Bonus Upto £100 + 10% Cashback Bonus
*18+ Full T&C’s Apply. New UK players Only. ¬£10 min. deposit. ¬£5 max. bet using Bonus. 40 x wagering applies. Bonus valid for 14 days. 30 Spins on pre-selected games will be credited instantly + then 30 per day for 9 days. Free Spins valid for 72 hours from credit. Max. Free Spins winnings ¬£100. Skrill + Neteller excluded.

All British Casino

100% Deposit Bonus Upto £100 + 10% Cashback Bonus
*18+ Full T&C’s Apply. New UK players Only. ¬£10 min. deposit. ¬£5 max. bet using Bonus. 40 x wagering applies. Bonus valid for 14 days. 30 Spins on pre-selected games will be credited instantly + then 30 per day for 9 days. Free Spins valid for 72 hours from credit. Max. Free Spins winnings ¬£100. Skrill + Neteller excluded. 

Betfair Casino

Deposit ¬£10 get 50 Free Spins! 
*18+ Full T&C’s Apply. New UK players Only. ¬£10 min. deposit. ¬£5 max. bet using Bonus. 40 x wagering applies. Bonus valid for 14 days. 30 Spins on pre-selected games will be credited instantly + then 30 per day for 9 days. Free Spins valid for 72 hours from credit. Max. Free Spins winnings ¬£100. Skrill + Neteller excluded. 

Casino Gods

100% Deposit Bonus Upto £100 + 300 Bonus Spins
*18+ Full T&C’s Apply. New UK players Only. ¬£10 min. deposit. ¬£5 max. bet using Bonus. 40 x wagering applies. Bonus valid for 14 days. 30 Spins on pre-selected games will be credited instantly + then 30 per day for 9 days. Free Spins valid for 72 hours from credit. Max. Free Spins winnings ¬£100. Skrill + Neteller excluded. 



Casino Sites Online – Our Team

If you wish to compare casinos and claim exclusive bonuses from the best casino sites online on this website then you are able to at the click of a button. Each of the casino sites listed here have been fully researched and tested by our gaming experts to ensure security and player satisfaction. Many of the casino brands that make it onto our site are well-known, such as; Ladbrokes Casino, Coral Casino, and William Hill Casino. Whereas others may be lesser-known casino sites that we have deemed worthy of your attention. Our team works diligently to make sure our readers are presented with only the very best casino sites online.

Markus Holm – Igaming Expert of over ten years and www.casino-sites-online.com chief reviewer.


How To Find The Best Casino Sites Online

Finding the best casino sites online is not always the easiest of tasks as there are number of important things to be considered. The most important one being customer safety. Here are the main things we consider a must-have for any operator that wants to be considered one of the best casino sites online.

  • Correct Licensing
  • Varied Banking Options
  • Fast Withdrawal Times
  • Large Games Selection
  • Mobile App
  • Live Dealers
  • Great Bonuses
  • Existing Player Bonuses

We always insist on a large portfolio when it comes to slots too. The best casino sites all have in excess of 600 slot games to choose from including the latest new slots and classic slots. Since a reported 84% of all online casino customers play online slot games it should be considered a priority. All of the casino sites found on here a huge collection of online slots with fantastic bonuses to get you a good start at casino sites.


UKGC

The United Kingdom Gambling Commission (or UKGC) is the regulatory body for customers based in the United Kingdom. The Gambling Commission‚Äôs functions are set out in the Gambling Act 2005 (opens in new tab) as amended by the Gambling (Licensing and Advertising) Act 2014 (opens in new tab).

The UKGC exists in order to safeguard players and the general public by ensuring gambling is kept fair and safe. 

The main ways they do this is by:

We will only allow UKGC licensed casinos on this website as a policy. This does not necessarily mean that casino sites under a different jurisdiction cannot be trusted, it simply means that we recommend that you should play at casinos within your legal jurisdiction for your own safety and protection.


Casino Sites FAQ

  • What is the best casino site?

    Everybody has different tastes so choosing the best casino site would be an individual decision. We can however give you the best shortlist of casino sites to be found anywhere on the web right here on Casino Sites Online.

  • What casino site has the best bonuses?

    There are several leading casino sites that offer lucrative welcome bonuses. Casino Planet, for example, is one of the most generous casinos for new player and existing player bonuses, and they are currently offering 200 free spins as part of their welcome package.

  • Which casino site is best for slots?

    All of the casino sites found here contain extensive slot game libraries of at least 600+ slots. In some cases, over 1000 slot games can played at casinos such as; Ladbrokes Casino, Casino Lab, and, William Hill Casino. You will be able to claim free spins as part of your welcome package at several casinos, including; Casino Lab, Kassu Casino, Genesis Casino, Casoola, and, Casino Planet.

  • How do I register at a casino site online?

    Registering at a new casino is a simple and straightforward task that usually requires less than 2 minutes to complete. Simply choose a casino from our list and click “Visit”, once at your chosen casino you may join by submitting a quick online form and then confirming your details for KYC.

  • What is the best mobile casino site?

    There is much debate as to which mobile site is the best in the online casino arena with several new kids on the block pushing themselves up the list by producing some of the slickest new mobile casino sites around. One of those new kids we are talking about here of course is the immensely popular, Casino Planet.