Make an audio file play faster or slower
Tempo Changer
This is a free web service that allows you to change the tempo of any audio file of your choice while maintaining its pitch. If you feel like a song is too slow for you, you can easily speed it up without changing its key. You can also slow a song down which can be useful if you want to transcribe a song. Slow it down to a comfortable tempo for you and play along with it.
