Online casinos, also referred to as virtual casinos or internet casinos, are safe online gambling site versions of traditional ("brick and mortar") casinos. Online casinos enable gamblers to play and wager on casino games over the Internet. Online casinos can be separated into three groups determined by their interface:

Web-based casinos are web sites where users may play casino games without downloading software to the local computer.Download-based casinos will be the ones which require the download of the software client to be able to play and wager on the casino games offered. Live casinos allow web players to communicate with games played in a real life casino environment. Online players can easily see, hear, and connect to live dealers at tables in casino studios worldwide.