Online slots have exploded in popularity and now account for over 70% of the total casino games on offer. They are fast paced, easy to play and have a wide variety of features. While they don’t require the same level of skill or instinct as other casino games like blackjack and poker, a basic understanding of how online slots work can help players improve their chances of winning.

In online slot games, the outcome of a spin is determined by a random number generator (RNG). This process is the same for land and online casinos. The RNG is a piece of software that is initially and periodically tested by independent expert agencies to ensure that it is unbiased and fair. Unlike electromechanical slots, where mechanical mechanisms are used to spin the reels, modern slot machines use digital RNGs.

Generally, the payout percentages for online slots are higher than those for brick and mortar casinos. This is because there are lower overhead expenses and an unlimited number of people can play the same game at the same time. The higher the payout percentage, the better your chances of winning.

When you decide to play an online slot, you’ll need to know how much you want to bet. Most online slots have a maximum bet per spin, which is usually reflected in the paytable. In addition, you’ll need to be aware of the number of paylines on the game and whether it’s recommended to activate all them.