foobar2000 is a free, comprehensive audio player for Windows, featuring a highly modular design, breadth of features, and extensive user flexibility in configuration. At its core, Foobar2000 natively supports most common audio formats, including MP3, MP4, AAC, CD Audio, WMA, Vorbis, FLAC, WavPack, WAV, AIFF, Musepack, Speex, AU, SND... and more with additional components.
foobar2000 also has a customizable user interface, advanced tagging capabilities and support for ripping Audio CDs, as well as transcoding of all supported audio formats using the Converter component. The player can read inside ZIP, GZIP, 7z and RAR archives. Additional features include ReplayGain support (for both playback and calculation), gapless playback, keyboard shortcuts and support for DSP effects such as equalization and crossfade.