MP3Gain analyzes mp3 files to determine how loud they sound to the human ear. It can then adjust the mp3 files so that they all have the same loudness without any quality loss. This way, you don't have to keep reaching for the volume dial on your mp3 player every time it switches to a new song.

What's new:

Version 1.3.2 (Beta) is out. I still only recommend it if you really need Unicode support.
Version 1.2.4 (stable) now includes the extra little tweaks that 1.3.1 had, but without the Unicode stuff. For instance, double-clicking on a file in the list opens the mp3 file in your default player.


Download: Mp3Gain 1.3.2 beta