iTunes, developed by Apple Inc., is a media player, media library, internet radio broadcaster, mobile device management utility, and the client app for the iTunes Store.

It is used to purchase, play, download, and organise digital multimedia, on personal computers running the macOS and Windows operating systems (in 2019, Apple announced that iTunes in macOS Catalina would be replaced by separate apps, namely Music, Podcasts, and TV. Finder would take over the device management capabilities).