fre:ac (formerly BonkEnc) is a free audio converter and CD extractor for Microsoft Windows, Linux, macOS and FreeBSD, distributed under the GNU General Public…

Eina is a portable music player.

Free Audio Converter is a free audio format conversion software.

MPlayer OSX Extended video player for Mac.

SoundConverter is a free and open-source transcoder for digital audio files.

Winamp is a media player for Windows, Android, and OS X.

dBpoweramp is a mp3 converter, FLAC, WAV, AAC and Apple Losslesss. CD Ripper, Album Art Fixing, Asset UPnP Server.

Foobar2000 is free audio player.

LameXP is a graphical user-interface (front-end) for various of audio encoders: It allows you convert your audio files from one audio format to another.

OggConvert is a free and open-source transcoder for digital audio and video files of various types into the free Ogg Vorbis audio format, and the Theora, VP8 …

soundKonverter is a front-end to various audio converters.

XRECODE is an audio converter, which supports most of the common audio formats, such as mp3, wav, flac, dsd, etc.