When you play casino online, you’re betting real money on games like blackjack and roulette from a computer or mobile device. There are many different types of casino games to choose from, including virtual slots and poker. Online casinos also offer different payment methods, such as credit cards and e-wallets. In addition, most of these websites feature customer support.

Some of the most popular real money online casinos are regulated by gaming authorities and accept a wide range of currencies. Regulatory agencies ensure that online casinos are fair and safe to use. Additionally, these agencies conduct regular testing of the random number generators (RNG) that power casino games. Some of these tests are performed by independent third parties, while others are conducted by the casino itself.

The most common way to play casino online is through a web browser or mobile app. Most online casinos offer a variety of casino games, from classic table and slot titles to more advanced video poker and blackjack. Some of these sites even offer live dealer casino games.

Most state-licensed online casinos are safe to play, and most are subject to regular inspections by gaming authorities. You should also check whether the website or mobile app has a valid license in your country. Some states, such as Massachusetts, only allow licensed casinos to operate in their jurisdiction. Others, such as New Jersey, have legalized iGaming since 2013.