An online casino is a virtual platform where players can gamble for real money. They can play a variety of casino games like slot machines, blackjack and poker. These sites use random number generators to ensure the games are fair. In addition, they offer bonuses and promotions to attract new players. The best online casinos have mobile apps that allow players to play from anywhere in the world.

Most legal online casinos have a good reputation. They are regulated and offer high-quality customer support. They also have easy-to-use websites and apps with fast loading pages. They offer multiple ways to contact their support teams, including live chat and email. They also provide deposit limits that suit their customers.

Legal online casinos have lower overheads than their brick-and-mortar rivals, so they can offer higher pay out rates. In addition, they often have a large portfolio of casino games, from traditional favorites to progressive slots with jackpots in the millions of dollars. Some of these casinos even offer a free trial version of their games so you can try them before investing any money.

While Colorado only recently legalized sports betting, it’s not too far off from launching a regulated online casino. It could be as soon as 2022 when major operators like DraftKings, FanDuel and BetMGM launch their own online casino platforms in the state. In the meantime, players can enjoy sports betting at one of the existing state-licensed online sportsbooks.