Funbrain allows its visitors access to various educational games at no cost. The available games are sorted into different categories, including the most popular games, number and word games, puzzles, and matching games.
The games are also categorized according to the player's grade level, ranging from kindergarten to eighth grade. It is possible to click on any category to access the list of all games suitable for a specific school age or to select from a list of popular games for which the links are available under each category. As of 2015 Funbrain offers more than 100 games and requires the user to have the Adobe Flash Player installed in order to play.