Online Casinos are extremely popular and lot of individuals are playing and gambling. Online casinos may be divided into three groups according to their interface: web-based casinos, download-based casinos, and even more recently live casinos. Some casinos offer multiple interfaces.

Web-based online casinos are different web sites where gamblers/users can play casino games such as online Bingo, Black Jack, Baccarat, Poker and many more. They don't need to download any software to their computer. The games are represented in the owner's browser plug-ins Macromedia Flash, Macromedia Shockwave, or Java. Additionally, bandwidth will be needed as a way to play the sounds, the pictures and animations. Web-based are the most popular.

Download-based online casinos require the user to possess a computer to be able to download the online casino software for him to play the games and gamble on the on-line casino.