File Type Advanced Audio Coding File IconAdvanced Audio Coding File
File Format Standard
Usage Referenced by an application; not meant to be opened manually; may run a program or script when opened
Popularity ★ ★ ★ ☆ ☆  Average

Advanced Audio Coding (AAC) is a standardized audio encoding format that uses lossy compression. It is similar to the .MP3 format, but provides better sound quality at similar bitrates.

The AAC format is used by the Apple iTunes Store and is supported by the iPod and iPhone. It is also used by the Sony PlayStation 3, PSP, and recent Walkman devices.

While advanced audio coding files may use the ".aac" extension, AAC encoding may also be used within various container formats. These include .MP4, .M4A, .M4P, .M4R, and .M4V files.

Open With

IconMicrosoft Groove Music

IconNullsoft Winamp

IconMedia Player Classic


IconApple Music

IconVideoLAN VLC media player

IconAdobe Audition


IconVideoLAN VLC media player


IconXMMS with AAC plugin

Updated May 14, 2009
Information from the PC File Extensions Reference