An online casino is a gambling website that lets you wager real money on various games of chance like slots and table games. They are often regulated by state authorities to ensure that they are fair and safe to play. These casinos typically offer a wide range of real money casino games, generous promotions and customer service. Some also have mobile apps to give players the flexibility to gamble on the go.

When selecting an online casino, look for a site that has a license from a reputable regulator like the UK Gambling Commission or Malta Gaming Authority. This certification means that the casino adheres to strict standards of player protection and game fairness. Also, be sure to check the number of games on offer and whether they include popular titles such as video poker and blackjack.

Some online casinos develop their own software, while others rely on third-party developers like Microgaming, NetEnt and Play’n GO to supply their games. In either case, they should run on high-quality software that provides a smooth and user-friendly experience. In addition, they should support a variety of banking options to make it easy for players to fund their accounts and withdraw winnings.

Real money casino online sites typically accept PayPal and e-wallets such as VIP Preferred and Neteller, and some even offer mobile apps that let players use their smartphones to fund their accounts. Some of them also allow players to deposit and withdraw using cash at participating retailers like 7-Eleven, CVS, Family Dollar, Walgreens, and Casey’s General Store.