Online Slots are the most popular casino game online. They are easy to play and offer the chance to win huge jackpots. You can choose from thousands of different slots and each one has a unique theme and features. Many people are interested in learning how these games work, and how to maximize their chances of winning.

The backend of an online slot machine contains software that continuously selects random numbers. The number generated at the moment you press ’spin’ determines which symbols will appear on the reels. The software then uses a mathematical module to calculate the result of that spin. These modules are tested by independent expert agencies to ensure that they are fair and cannot be tampered with by casinos or players.

While some people believe that the RNG in an online slot machine is programmed to take advantage of players, this is untrue. The math behind the machines is the same for autoplay spins as they are for manual spins and gambling regulators always test the software used in casinos and slot games to make sure it’s fair.

While online slots are available from multiple vendors, some companies are responsible for creating some of the most popular titles in the genre. These include IGT (International Game Technology), which is behind such classics as Cleopatra and Wheel of Fortune, and Microgaming, the maker of the legendary Gonzo’s Quest. Both companies have a reputation for quality and are known for their customer service.