Song editor program?

[Aeis]

I need a program in which I can edit mp3:s in.
Doesn't have to be anything advanced, just that I can shorten the mp3 by cutting off the end of it.

Is there any program like that?=)

 

[Mazling]

https://forums.freddyshouse.com/showthread.php?t=7701
... http://audacity.sourceforge.net/ is free 'n stuff.