So who is CasinoGuide? We're a group of industry experts who are passionate about everything to do with online casinos, and want to share our knowledge and experience with the community. We are serious about what we do here at CasinoGuide. We pride ourselves on offering the best, most comprehensive guides to all aspects of the online casino experience. And we love helping you find the perfect casino, with the biggest bonus possible. To make it easy for you, we've listed the best online casinos in every category, and thoroughly reviewed each one of them too. You can even filter our list above to show only the casinos which meet your specific requirements. The filters are based on over 50 different important casino criteria chosen by our experts. How Do We Decide Which Online Casinos Are Trustworthy? When it comes to online casinos in the UK, we know our onions. Which means we know how to tell a good casino from a bad one. It’s easy enough to tell, when you know the right questions to ask: Is the casino licensed? Every online casino operating in the UK must have a license from the UK Gambling Commission. If they don’t, that’s an instant red flag for any UK player. When was the site launched? New online casinos can be a tempting proposition, but it can also make them an unknown quantity. How do they deal with complaints? A quick Google search by our reviewers will usually turn up any public complaints, and we can then judge the casino on how they handled the situation. Are their bonus terms fair? Casino bonus wagering requirements are, as a rule, quite high. It’s the nature of the game. But if a casino is applying requirements that are significantly above average, that’s a red flag for us. How well do they promote responsible gambling among their players? One of the most important obligations that online casinos must fulfil is to provide effective and timely support for players who may be suffering from gambling addiction. Thanks to the Gambling Commission this is a requirement of any UK-licensed online casino, but if they go over and above the minimum, this is a good signal of their trustworthiness. Obviously, you don’t need to worry about this too much, as we’ve done the hard work for you. Our list of the top online casinos in the UK comprises the best of the best!