Xfire has many features, the majority of which can only be used while in-game.
Xfire features the ability to detect the video game a particular user is running. By analyzing running processes, Xfire can detect active games and send that information to Xfire clients with the current player as a friend. For many games, it can also detect which server users are playing on, the level which is running, and ping times. Using these features, users are also able to see what games their friends are playing, and to join any friends who are currently in-game by having Xfire launch the game and join the friend's server automatically. Xfire logs what games users are playing, how many hours they have played them, and saves other information (such as scores) from game servers. This information can be converted into a PNG image by the server via PHP for every user to use as a signature.
Xfire allows players to take screenshots in-game and save them to a specified folder, though this only works with games that have Xfire in-game support. Users can select and caption any screenshots they wish to upload and share on their Xfire profile page. Xfire also has the ability to record video in-game, though this can have a significant impact on game performance and recording quality if one has a low-performance system, causing the frame rate to slow dramatically.[16] However, this is typically true of all video recording during gaming, and not unique to Xfire.
To communicate with other users in-game, Xfire users may send and receive instant messages from inside a game in fullscreen mode, regardless of the games the sender or recipient are in. This eliminates the need to minimize the game window.
Xfire added a feature to allow its users to capture in-game video and upload it to YouTube. This feature is similar to other popular in-game video recording software products, but allows users to record videos up to 10 minutes in length for free. Xfire clan system that allows users to create clans or guilds on the Xfire website. Features associated with clans include setting up ranks, favorite games, and the number of hours everyone has been playing