Best Real Money Online Casinos in 2021

Navigate through our list of the best online casinos in 2021 to pick the website and the bonus offer that works best for you.

Our list of recommended casinos gives you a comprehensive overview of all the best real money casinos available in your location. Pick your favourite online casino site, claim their new customer bonus and gets started with some top gambling action!

When you play real money games online, you need to be sure that the sites that bring you the action are safe, fair, and regulated.

Picking the right online casino allows you to play safely in the knowledge that the games are not rigged and your money is treated with the care you deserve.

The recommended websites you find on our list of the best online casinos are all audited by third-party international agencies and operate under licenses issued by the top gambling authority in the world.

To compose our rankings of the best online casinos in 2021, we scouted the list of sites authorised by the United Kingdom Gambling Authority (UKGC), the Malta Gambling Authority (MGA), the New Jersey Division of Gambling Enforcement (NJ-DGE), the Pennsylvania Gaming Control Board (PGCB) and more.

Once we have mapped all the online casinos available in all the top regulated markets in the works, we continued the process with a thorough analysis of the platforms, the casino apps, the game offers, the promotions and more — to give you the most accurate rankings of online casinos you will find in 2021.

In other words, if you're new to the industry and you're unfamiliar with the concept of real money casinos, the CasinoSmash Online Casino Rankings has got you covered.

Continue reading to find info on how to identify the best types of online casinos, understand the different types of game providers, and learn some top tips to enhance your gameplay at the top-rated gambling sites on the internet.

Best Online Casinos in September 2021

Room BonusRatingGet the Offer
Get 100% up to $300
8/10 Play
Must be 21 or older to gamble. Valid within the State of New Jersey only.
Get $100
8/10 Play
*Rules apply. Must be 21+ located in NJ. Minimum Deposit: $10. Minimum Wager: USD 0.01 (one cent). Any withdrawals during the 7 days, or before depositing, would automatically exclude the player from taking part in this promotion.
Get 100% up to $500
Valid on ALL the games on the site!
9/10 Play
Your largest deposit/transfer (minimum $10) in the seven days prior to claiming the offer will qualify for a 100% matched bonus, up to a maximum of $500.
Get $10
FREE No Deposit Bonus
8/10 Play
This promotion is available to individuals aged 21 years and over who have registered as customers on nj.unibet.com and are physically located within the state of New Jersey. Enter the bonus code UBCASINO10 when you register. Deposit and enter code UBCASINO500. In the occasion that the event on which the bet is placed is canceled, any bonus and associated winnings will be forfeited. Unibet reserves the right to change or cancel this promotion or part of this promotion at any time without notice. General T&C apply.
100% up to $600 + $25
A Value-Packed Offer for New Players
9/10 Play
21+. New players only. New Jersey only. This offer is valid until December 31, 2020. Minimum deposit $ 20. Maximum deposit is $600. T&C apply.
Get 100% up to $1,000
+ 25 Free Spins on Starburst
8/10 Play
Welcome offer for new NJ PartyCasino accounts; includes a 100% deposit match, up to $1,000, and 25 Free Spins. Valid through Dec. 31, 2021. Full T&Cs apply.
Get 100% up to $1,500
Casino Games, DFS, Sports Betting, and More!
8/10 Play
A patron’s first deposit on DraftKings Casino only (min. $5) made between 7/23/21 – 9/8/21 qualifies the patron to receive up to $1,500 in bonus funds that can only be used on DraftKings Casino. Bonus amount is equal to that of the first deposit amount.
Not available in your country
9/10
N/A
Not available in your country
9/10
N/A
Not available in your country
9/10
N/A

About the Online Casino Rankings

This page lists the top online casinos available in your country. All the casino sites you find here have been chosen and checked to make sure you get to play the latest games, with the best bonuses, and on the top casino apps for desktop and mobile devices.

To be recommended as a top-rated online casino site and therefore included in our rankings, a gambling operator must offer high-quality customer service, top bonuses, and a large game selection.

The online casinos you see on the list have been certified to protect your money and are licensed by multiple international gambling authorities.

How Do We Rank Casino Sites?

Part of the award-winning Oddschecker Global Media (OGM) group, CasinoSmash is in the business of recommending the best online casinos since 2013.

Since the day we went online with our first pages, our mission has always been clear: we wanted to help our readers to play the best games, on the best websites, and with the best bonuses.

We strongly believe online gambling should be fun and fair: That's why we promote only regulated websites and we provide plenty of resources to help you avoid the perils that are sometimes connected to real money gambling.

Our parent company OGM is also amongst the founders of RAiG, an independent body set up to help raise standards in the sector, particularly in respect of responsible gambling.

At CasinoSmash, we pride ourselves on reviewing casinos against our specific criteria to make sure they're up to scratch. These include:

These, and a few more, are the criteria we use when we review online casinos to decide whether a website is fit to earn a spot in our rankings...or not.

Before we even touch a website and we begin to analyse the game offer they propose, we need to make sure a casino is legal. To do this, we examine the licenses it operates under and whether or not the site follows the regulators' protocols.

We then do a thorough check on all safety and security measures in place - including the SSL data encryption software - to ensure all financial and personal details are secure.

Our casino team does an extensive background check to dig as much info as possible about the companies that run casino brands as well. This way we can identify skins that are part of a network and filter those with negative reviews.

Fairness - The Likelihood of Winning

When reviewing a casino, we check for fairness in games, payouts and bonuses. While winning is never guaranteed, your odds are always better at casinos that make use of Random Number Generators (RNG) to ensure games award fair outcomes.

This ensures the casino doesn't turn the odds in their favour and gives all players a fair shot.

All the recommended online casinos on this page are audited periodically by trusted companies like eCogra, iTech Labs, and Gaming Labs.

Payout Times

When you play at a real money casino, you want to make sure the site offers trusted and secure payment methods. On top of that, you also want to prioritise casino sites that offer reasonable and timely payouts.

Should you happen to win some money, you should have the peace of mind that comes with knowing you can withdraw your funds quickly and safely.

All the online casinos we recommend on our rankings are proven to pay out fast.

Customer service

We're always reviewing the standard and accessibility of online casino customer support across our recommended sites, and we value those that offer 24/7 support at the click of a button.

We know it's important there's always someone ready to assist with any issues you face while playing online - whether you can reach them via email, live chat or through mobile.

Bonuses and Promotions

We consider the ease of accessing bonuses and the clarity of their terms and conditions when reviewing an online casino, including how easy it is to claim bonuses.

Using bonuses to play real money games is one of the best parts of online play - so we also look into how frequently online casinos offer something to their players.

From the latest new customer offers to bonuses and free spins for existing customers, we review every offer each site make available to you.

For full transparency, we publish also each offer's terms and conditions. While this is not a requirement in every territory, we believe knowing the fine print of every offer is the best way for you to choose what is really the best option.

Game Variety

With so many casino games out there to choose from, we take into account a site's game offering before recommending them to players.

The more the merrier, so we believe that sites with extensive libraries that cover various formats will prove more exciting and fulfilling in the long run.

But quantity doesn't mean we don't value quality. The sites you find listed on our pages feature games from all the best and top-rated developers in the world.

Deposit Options

On top of speedy and safe payouts, you want the assurance that your payments are processed through the most secure platforms available.

We always check the top-ranked solutions available for each site, which can include credit/debit cards depending on your country's legislation on gambling-related payments, e-wallets such as Skrill, Neteller, and PayPal, and other services like ApplePay and pay-by-phone bill.

Reputation in the Industry

Our team isn't content with testing online casinos. Our team regularly speaks with industry insiders, participates in player forums, and attends gambling events around the globe to learn more about the top casinos.

Mobile App Experience

All the latest market researches indicate that the number of mobile casino players has surpassed that of players connecting to the sites from a desktop computer. This is why the best online casinos have mobile-responsive web apps and dedicated online casino apps for iOS and Android.

Types of Casino Sites

The complexity of finding the best online casino site comes from the fact that there are a lot of different players out there. Some enjoy a quick slot game every now and then, while others are all about table games.

As the growth of the live dealer games show, modern casino players look for ways to interact with the games and bring to their screen a type of experience that is not the same Starburst or Book of Ra players look for.

Different players look for different platforms and offers. While free spins and new games are all a slot player needs, game shows and games with a low house edge are the bread and butter of table game aficionados.

That's why a one-fits-all list of the best online casinos doesn't always work.

If you know already what you like and what you want to play, have a look at the best online casinos for each game. This way, you'll be sure to pick a gaming site that has exactly what you look for.

Online slots are by far the most played casino games online and chances are you landed on this page because you are looking for some new games to discover.

There are some things that make the top online slots sites stand out. Surprisingly enough, the best online casinos to play slots are not simply those with the largest number of games available, but also the widest range of game providers and exclusive slots that have been developed in collaboration with slots manufacturers.

>> See the Best Slots Sites

Blackjack casinos must offer a wide range of classic games, with variations from many table game providers. Live dealer options must be available as well. Online casinos must offer a variety of stake limits and custom editions, such as jackpot and Blitz Blackjack if they want to be considered as the top online casinos and be recommended to our players.

>> See the Best Blackjack Sites

Roulette is a classic casino game that can be found in many different variants, including the popular American and European wheels.

When it comes to roulette games, the main differences consist in the inclusion of special bonus features (i.e. Lightning Roulette), house edge percentages (American vs European roulette), and betting limits.

The best online roulette casinos offer low and high limit roulette as well as live dealer and lightning roulette.

>> See the Best Roulette Sites

The king of all casino games in Asia, baccarat is one that is going through an impressive surge in popularity thanks to the live dealer action. Played between the player and banker, this is a game that relies on a strategy to increase the odds of success.

>> See the Best Baccarat Sites

Over the past decade, almost all the top online casinos have added live dealer studios. Some casinos still try to specialize in this area of their product, and it shows when they do it well. Multiple languages are available and live HD streams can be accessed from select land-based casinos. This allows for bespoke games as well as real-time interaction with players.

>> See the Best Live Dealer Casino Sites

Nearly every online casino listed on CasinoSmash will offer a mobile-friendly version of their website. Mobile casinos that are ranked among the best will offer bespoke apps that can both be downloaded for Android and Apple iOS phones and tablets. This allows you to enjoy a seamless mobile gaming experience.

Mobile sites must provide the right mobile version of any given game to ensure that you can play the games on the move.

>> See the Best Mobile Casinos and Apps

Online Casinos with the Best Payouts

It is difficult to rate the casino's overall payouts as this specific metric depends on the RTP% of all games. Also, it can be difficult to choose which games to consider when it comes to the online casinos with the best payouts because your chances to win vary greatly depending on the game you play.

However, certain casinos offer higher pay-out percentages on average depending on the games they play. To help you find the games that give you the best winning odds, we used our industry-leading tech and examined data about more than 8,000 casino games.

>> See the Slots with the Highest RTP

Software Providers

The variety of software providers offered at an online casino is just as important as the game library. You want to look for casinos that fill their library with titles from the top-rated providers, so you know you're getting access to the highest-quality games around.

NetEnt

NetEnt is one of the leading software providers in the industry due to their innovative features, high-quality graphics and high RTPs. With NetEnt, you're almost always guaranteed to enjoy playing whatever title you opt for - especially as they provide some of the most popular slots on the market.

Popular NetEnt titles include:

GameRTP
Starburst96.10%
Gonzo's Quest95.97%
Twin Spin96.60%
Reel Rush97.00%
Mega Fortune96.60%

Microgaming

As another industry giant, Microgaming instantly boosts a casino's reputation and gaming creds. They're popular for their high-quality slots which include fun themes, compelling features, and progressive jackpot payouts.

Top Microgaming titles include:

GameRTP
Mega Moolah88.12%
Immortal Romance96.86%
Bridesmaids96.71%
Break Da Bank Again95.43%
Avalon96.01%

Quickspin

One of the names that have risen to the top of the ranks in recent years is Quickspin, thanks to their spectacular range of video slots. They have a wonderful range of casino games with immersive themes and innovative bonuses. 

Top Quickspin titles include:

GameRTP
Northern Sky96.57%
Sakura Fortune96.61%
Big Bad Wolf97.34%
Hidden Valley96.47%
Ark of Mystery96.53%

Betsoft

Betsoft made their name by creating the best flash slots. From there, they started expanding and creating 3D slots and other forward-thinking games. Today, they are one of the leading names in the industry known for creating some of the best real money slots available. 

Top Betsoft titles include:

GameRTP
Chillipop95.38%
Total Overdrive96.92%
The Golden Owl of Athena95.05%
Alkemors Tower94.96%
Back to Venus97.07%

Yggdrasil

If next-level graphics and interesting themes are what you're looking for, then Yggdrasil is the way to go. They've made their mark through the creation of superb games that combine quality, creativity and unique features. 

Top Yggdrasil titles include:

GameRTP
Holmes and the Stolen Stones96.80%
Valley of the Gods96.20%
MultiFly96.30%
Vikings Go Berzerk96.10%
Hanzo's Dojo96.10%

Evolution Gaming

For players who prefer live casino action, Evolution Gaming is a perfect choice. They became popular as the king of all live gaming entertainment. And apart from creating different classic live casino variants, they are also responsible for the creation of several captivating live games. 

Top Evolution Gaming titles include:

GameRTP
Infinite Blackjack99.51%
Lightning Roulette97.30%
Lightning Dice96.21%
Monopoly Live96.23%
Crazy Time95.4%

Playtech

As one of the most established names in the industry, Playtech is known for creating exciting progressive jackpots games along with thrilling themed slots that boast big payouts.

Top Playtech titles include:

GameRTP
Age of the Gods King of Olympus95.98%
The 3 Musketeers and the Queen's Diamond92.06%
Age of the Gods Prince of Olympus94.82%
Batman & Catwoman Cash95.11%
Green Lantern94.95%

Habanero

Habanero is quickly building a name as one of the leaders in the industry. Each of their games has an individual theme, fun gameplay and more exciting features to enjoy. Another great attribute of their games is the high RTP found in many of their top titles. 

Top Habanero titles include:

GameRTP
Dragon's Throne98.05%
London Hunter97.94%
Arcane Elements98.09%
Fortune Dogs98%
The Koi Gate98%

5 Tips to Know Before Playing at an Online Casino

With so many online casinos out there, it can be difficult to choose where to play first and where to register a new customer account. We've put together some useful tips to help speed up the process of selecting your perfect games provider.

These tips are extremely important in case you decide to pick an online casino that is not included in our list. Letting these be your guides will help you find fair and top-quality casino sites.

1. Gamble Responsibly

An important element to consider is an online casino's approach to responsible gambling. Any site worth its salt will have a bespoke page packed with tips, tools and resources to help you play safely.

Don't overlook this, as it's an important indicator of whether a casino prioritises a safe and secure gaming experience. Stay in control of your gambling by taking advantage of options such as deposit limits, time limits and loss limits.

Any site that helps you keep your play fun and healthy is a good start. If you don't know what this means, here's a list of resources that can help you understand how to gamble responsibly and how to identify at-risk behaviours and patterns.

2. Enter the Correct Information

It's important to enter the correct info when registering your new casino account. If you don't, you may run into problems when it comes to withdrawals or claiming exclusive promotions.

Some casinos will ask you to provide some proof of identity upon signup so make sure you have all the details you need.

3. Research the Bonuses

Although you may be tempted to opt for any bonus that you fancy, it's worth taking the time to go through the terms and conditions.

While a generous bonus or big promotion might seem like the way to go, the wagering requirements, time limits and cap on winnings should be key considerations. It's important to take your time when reading the terms and conditions at a casino, including general account terms and bonus terms.

Read up on the wagering requirements, the minimum and maximum deposit options, the withdrawals, time limits and more to check you're comfortable with the terms. And when you're aware of the T&Cs, you're better equipped to make informed decisions regarding bonuses, deposits and withdrawals.

>> See the Best Online Casino Bonus Available This Month

4. Play Demo Games

A great way to test out a casino's quality and game library is to test a few titles in demo mode. This helps you see if there's a game that suits your preferences in free play mode before you spend any real money.

>> See the Best Free Slots

5. Decide your limits and stick to them

In order to ensure you gamble responsibly, you're urged to set your wager limits before you start playing. If you set limits on your deposits, maximum losses and time spent online, it's easier to stay in control and enjoy a stress-free gaming experience.

Regional Lists of Online Casinos

Depending on where you live or where you are located, some sites might not be available for free or real money play.

Online gambling is regulated differently in many countries, and not all websites are available everywhere. To help you overcome the complexity of local gambling regulation, we created a number of regional lists that will show you the best operators to try in some specific countries.

The best real money casinos in USA

Online gambling in the US is regulated at the state level and only New Jersey, Pennsylvania, Michigan, West Virginia, Delaware, and Nevada allow real money casino games online.

If you are in the US, these are the regional lists for you:

Online casinos in the UK

The United Kingdom is arguably one of the strictest countries in terms of regulations and licensing, and any online casino that wishes to operate there needs to go through the UK Gambling Commission (UKGC).

The UKGC ensures players only get access to casinos that meet the highest standards and are heavily set against underage gambling, making sure all providers conduct age verification.

>> See the Best UK Online Casino Sites

Top online casinos in Canada

Canadian players can enjoy playing the best online slots, table games and live casino variants from accredited sites.

The Canadian Gaming Commission is in charge of the industry and licensing of all online casinos. For more information on the top sites in Canada, check out our guide to Canada casinos. 

>> See the Best Canada Online Casino Sites

FAQs

How do online casinos work?

An online casino is a web-based site that allows you to play games with real money or for free. They essentially operate the same as land-based casinos - just virtually - and often feature live games that help replicate a real-life gambling experience. The key difference is that they can be accessed anywhere at any time through mobile apps or desktop interfaces.

Are online casinos safe?

Yes, as long as you play at a casino that carries licensing within your country or state. It's also important to check that the site adheres to security and safety protocols. Check out our list of top recommended online casinos as these have the best security measures. 

How are mobile casinos different from online casinos?

Online casinos and mobile casinos are similar in many ways, with the main difference being your access point. Mobile casinos can be accessed via your mobile device around the clock, whereas a solely online casino is only accessible via desktop. 

Which online casinos offer free casino games?

The majority of online casinos today boast free games. There are different free game options - but if you're looking to test out games without spending real money, then the demo games are what you want. These are available at most top-ranking casinos and are a great way to test out a site without making a real money deposit.