A casino online is a website or app that allows players to gamble on traditional casino games such as slot machines, blackjack, roulette, baccarat, poker and more. These sites allow you to place real money bets via your computer, smartphone or tablet. Online casinos also offer a variety of bonuses and promotions to attract and retain players.

Most online casinos accept major credit cards like Visa. This allows you to play with your existing card balance without having to sign up for another account or use a third-party payment processor. Some online casinos also offer a PayNearMe service, which allows you to deposit and withdraw cash from participating convenience stores.

When you play at a casino online, it is important to find one with high payouts. This can be achieved by choosing games with lower house edges, better odds or larger jackpots. It is also a good idea to look for a site with a VIP program that offers you additional opportunities to win big.

The top online casinos have a large selection of table games. This includes a number of roulette types, baccarat options and multiple craps variations. You can even find some that feature live dealers to give you a more realistic experience. Most of the best sites will have a couple of different blackjack types to choose from.

Colorado has legalized sports betting, but it’s still illegal to operate an online casino in the state. Legislation to change that remains on the table, however. In the meantime, residents can enjoy the hundreds of slot machines and table games at DraftKings and Mohegan Sun Casino (FanDuel).