Best Online Slots Casinos

2020's Best Slot Sites

Stunning graphics, captivating soundtracks, and detailed animations make slot games appealing to a wide audience. These days you find top online slots in many different themes, and online casinos offer a broader and more nuanced game selection than land-based ones.

We list casinos with the very best selection of real money online slots. Browse our recommended casinos, claim a bonus, and start winning with top online slots today!

  • The best online slots from industry-leading providers
  • Regulated casinos with generous bonuses
  • Quick and safe payments
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  1. Top rated
    Welcome Bonus
    $6,000
    Play now Review coming soon
    Rated 9
    US
    PROS
    • Big bonuses
    • Compatible with mobile devices
    • Supports Bitcoin banking
    CONS
    • Few progressive jackpot games
    • Limited banking options
    Casino rating
    Excellent
    9
    Payout Speed
    1-3 days days
    Win rate
    97.93%
    Banking options (2)
    bankwire visa
    Banking options (2)
    bankwire visa
  2. Welcome Bonus
    $5,000
    Play now Review coming soon
    Rated 8.4
    US
    PROS
    • Unusual game selection
    • Simple and intuitive site design
    • Welcome bonus worth up to $5,000
    CONS
    • No live dealer games
    • Small selection of table games
    • Very high minimum withdrawal
    Casino rating
    Excellent
    8.4
    Payout Speed
    1-2 days
    Win rate
    97.87%
    Games Choice
    150+
    Banking options (3)
    skrill neteller bankTransfer
    Banking options (3)
    skrill neteller bankTransfer
  3. Welcome Bonus
    $5,000
    Rated 9.7
    US
    PROS
    • Large variety of games
    • Huge welcome bonus
    • Free games
    CONS
    • No live dealer games
    • Bitcoin or USD only accepted
    • Limited banking options
    Casino rating
    Excellent
    9.7
    Payout Speed
    1-2 days
    Win rate
    97.92%
    Games Choice
    400+
    Banking options (6)
    visa mastercard amex
    Banking options (6)
    visa mastercard amex
  4. Welcome Bonus
    $1,000
    Rated 8.9
    US
    PROS
    • US players welcome
    • Two online casinos in one
    • Wide variety of games
    CONS
    • No live dealer games
    • Limited welcome bonus
    Casino rating
    Excellent
    8.9
    Payout Speed
    1-3 days
    Win rate
    98.40%
    Games Choice
    4
    Banking options (5)
    creditCards debitCards mastercard
    Banking options (5)
    creditCards debitCards mastercard
  5. Welcome Bonus
    $7,777
    Rated 8.6
    US
    PROS
    • Huge Welcome Bonuses
    • US Players are warmly welcomed
    • Powered by Real Time Gaming
    CONS
    • No live dealers
    • Slight issues with cash withdrawals
    • The Only currency is the USD
    Casino rating
    Excellent
    8.6
    Payout Speed
    1-2 days
    Win rate
    96.45%
    Games Choice
    120+
    Banking options (5)
    creditCards debitCards mastercard
    Banking options (5)
    creditCards debitCards mastercard

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How We Rate & Review the Best Slots Casinos

Wide range of Slots

On this page, we've listed several casinos that offer an incredible selection of online slots. At OnlineGambling.com, we carefully review every casino to give you an accurate assessment and help you choose sites tailored to your needs.

When we review a casino to determine if it belongs among our recommended list, there are certain things we look for:

Bonuses – We evaluate the total worth of the welcome bonus package in addition to no-deposit bonuses, loyalty bonuses, and more. We also study the T&Cs – the endless small print that no one really reads but everyone is affected by. This way we can understand more about play-through rates, maximum wins, withdrawal restrictions, and other minor details that casinos hope will go unnoticed.

Security – Safety is very important when you play slots online. That's why we only list safe and regulated online casinos, taking a casino's license and regulation history into account when we set the final grade.

Banking – When you're playing real money slots, you need to be sure your payment details are handled safely and that there are many different options at your disposal. Whether you want the anonymity provided by digital currencies, the convenience offered by web wallets, or the accessibility demanded by credit cards, choice is as important as safety and both of these things are taken into account by our ratings.

Game Selection – The variety and quality of a casino's games are one of the biggest factors impacting our rating. We look for a wide and varied selection of both free and real money slots, preferably from several different developers.

Customer Support – It doesn't matter how experienced you are, or how good the casino is, there will come a time when you experience an issue and need to contact customer support. When you do, it's crucial you receive excellent service.

Mobile Compatibility – The world has gone mobile, and players are demanding that casinos and developers adapt. It's important for a casino to offer a smooth and seamless mobile experience. Fortunately, most of the sites we recommend offer mobile casino games that are up to par, but there are still those that fall short of the mark.

Free Online Slots

Thought you could only play slot machines for money? You thought wrong. The truth is, most casinos give you the option to play free slots online and to make the switch to real money play whenever you're ready.

On top of this, many top online slots will also let you set the coin value to just 0.01 per spin. These "penny slots" ensure that your bankroll lasts longer, while still giving you a chance to win real cash. If you win, you can always increase the coin value, bet more, and score higher wins as you go.

All the top casinos online offer free play slots. That means you can try them before you spend real money on them. This is a great way for you to experience all the action without spending a dime.

Real Money Slots

When you play online slots for money, safety is paramount. You need to make sure that you only play with trustworthy casinos, and a good way to stay safe is to stick with casinos that we recommend on our top lists.

So what defines a "safe casino"?

Well, it all comes down to licensing and regulation. Safe online casinos are overseen by independent regulatory bodies. These regulatory bodies issue gambling licenses, carry out regular inspections, and generally oversee operations.

The regulatory bodies ensure that the RNG-engines used in all real money slots are working as they should. They also make sure that casinos follow all practices that apply to responsible gaming, and that they take the necessary precautions to ensure safe online payments and prevent money-laundering.

Playing Mobile Slots

The majority of players prefer to use their phones to play slots online, which is why most casinos have a fully responsive mobile site.

You'll find that most of your favorite sites scale down perfectly when you visit them on your mobile device and that many of the best online slot machines are available on mobile as well.

However, there are still some restrictions that you may want to consider:

  • Game Library – some casinos have a substantially bigger portfolio on desktop than they do on mobile
  • Graphics Quality – newer online slots run better on newer devices, which are better suited to processing detailed animations, intricate bonus features, and big 3D graphics

The good news is that all modern real money slots come in both mobile and desktop versions. It doesn't matter what device you use – all the best casinos and games are compatible with iPhone, iPad, Windows, and Android.

Start Winning Real Money on the Best Slots

Online slot machines are bigger and better than ever, and every month brings new games, new advancements, and new ways to make this medium even more exhilarating. Leading game developers release a plethora of titles every quarter and are constantly striving to improve and advance.

Increasing competition is also setting the bar higher, pushing game developers to create the best online slots, and forcing online casinos to offer bigger game portfolios.

As a result, there are now plenty of casinos that offer top online slots along with generous bonuses and free spins.

Browse our recommended casinos, grab a bonus, and win big on the best real money online slots the industry has to offer.

Frequently Asked Questions

  • Can I play online slots for real money?

    Yes, you can. In fact, that's what we're here for!

    You can't beat the thrill of spending a few cents and knowing that every time you press "spin" there's a chance you'll win hundreds or thousands of pounds.

  • What online slots pay real money?

    All the best online slot games pay real money, as long as you play with real money. The only exception is when you're using free spins, but in such cases, there may be restrictions in place as defined by the casino's T&Cs.

  • Are online slots rigged?

    Slots that are manufactured by established game providers, and offered at licensed online casinos, are never rigged. All the best online slots have a random number generator (RNG) to ensure every outcome is random and every spin is fair. All licensed game developers and online casinos are inspected by independent regulatory bodies that ensure RNGs are working as they should.

    The casinos we recommend are fully licensed and only work with certified game providers—you have nothing to worry about as far as fair play is concerned.

  • What is the best online casino?

    It depends on what you're looking for.

    Casinos differ considerably with regards to payment methods, games, and promotions. You might be looking for a certain payment method, a particular game, or a no deposit bonus.

    Browse our recommended casinos, read the reviews, and find a casino that's best suited for your needs before you start playing slots online.

  • Are online casinos legit?

    We only list licensed casinos, so all of the sites on this page are legitimate.

    These casinos are frequently inspected by independent regulatory bodies to ensure compliance and player safety. The online casino industry has somewhat lost its stigma and become a recognized online entertainment industry. This success benefits players as it has resulted in stricter regulation and increased transparency.

  • Can I play slot games for free?

    Yes, you can. All good online casinos should offer their real money online slots in free play mode too. This way, you can try the games out before you deposit any money at all.