Foobar -

: While some enthusiasts believe it sounds "crisp" and "better" than other players, the developer famously maintains that there is no audible difference between players unless DSP (Digital Signal Processing) or resampling is applied. Community Perspectives

Native support for MP3, FLAC, WAV, and more; expandable via components. Can be installed as a portable app on a USB drive. Interface foobar

Highly modular but visually dated without significant manual tweaking. Completely free on Windows , iOS , and Android. foobar2000 - App Store - Apple : While some enthusiasts believe it sounds "crisp"