Online casinos are virtual gambling sites that allow players to play real money casino games using a computer or mobile device. These sites offer a variety of casino games including slots, video poker, table games, and live dealer casino games. They also offer bonus offers to attract new players. Some of these sites offer free play versions of their games to help players try them out before making a deposit. Choosing the right casino is important because there are thousands of these sites competing for your attention.

The best online casinos offer multiple banking options and are easy to navigate. They also have excellent customer support and security features. The best casinos will make their contact information and security measures easily visible on their websites. They will also have a live chat feature that follows you around the website so that you can always get in touch with someone to answer your questions.

Online casinos offer a variety of games, but many are based on slot machines. These include classic three reel and five-reel machines, as well as more advanced video slots that let you adjust the number of paylines and adjust your coin size. Some of these casinos also have progressive jackpots. Other popular games include roulette, blackjack, and baccarat. These games are played against a computer or other players. Some casinos even offer a social gambling experience with a live dealer.