The pickLink checked Oct 9
Audioalter
audioalter.comFree tools to change an audio file's tempo, pitch and more
FreeNo signup
That one website that changes a song's speed or key
Why it's the pick
Audioalter's Tempo Changer can slow a song down or speed it up without changing its pitch, and its Pitch Shifter moves it to a different key; then you download the result. It is free with no account, for MP3, WAV, FLAC or OGG files up to 50 MB, and has a dozen other effects too.
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