Winamp is one of the most popular free media players for Microsoft Windows PCs. The program is also available for your Mac or Android device. While the player comes with limited customization options, you can choose from multiple skins to change the appearance and layout. If you prefer to use a single offline audio player to listen to music, Winamp will be an excellent choice. The veteran media player is easy to use and supports multiple file formats, including MP3, FLAC, AAC, MIDI, WAV, M4A, WMA, MOD, and MPEG.