File Type MP3 Audio File IconMP3 Audio File
File Format Standard (developed by Moving Picture Experts Group)
Usage Referenced by an application; not meant to be opened manually; may run a program or script when opened
Popularity ★ ★ ★ ★ ★  Popular

MP3 files contain compressed audio data. They use MP3 compression, which is one of the most common audio compression algorithms. The compression rate can vary between MP3s, which may affect the file's size and audio quality. Higher compression will result in smaller files with lower fidelity, while lower compression will produce better-sounding files with larger file sizes.

MP3s were the first major compressed audio format, but have become less popular since the introduction of the AAC codec, which provides better audio quality at similar compression levels. (These files use the .AAC extension as well as several other file extensions.) However, since MP3 files are still ubiquitous, they can be played by nearly all modern audio applications.

Open With

IconMicrosoft Groove Music

IconMicrosoft Windows Media Player

IconNullsoft Winamp


IconApple Music

IconVideoLAN VLC media player

IconRoxio Toast


IconVideoLAN VLC media player

IconThe GNOME Project Rhythmbox


Updated May 29, 2009
Information from the PC File Extensions Reference