MP3Gain for Windows

  • Free
  • In English
  • V 1.4.6
  • 4
  • (675)
  • Security Status

MP3Gain - Free volume balancing

MP3Gain is a free volume balancing tool, used to adjust your collection of mp3s so that they all play at the same volume. No longer will you have to reach for your volume control every time a particularly loud or quiet song comes on! Your entire mp3 collection can be played at one consistent volume without adjustment.

Volume harmonisation across tracks

MP3Gain works slightly differently to other programs with similar functions because it does not simply do peak normalisation but instead uses statistical analysis to analyse how loud a song sounds to human ears. The other bonus of using MP3Gain over other similar software is that it is completely lossless, because it adjusts the mp3 file directly rather than de-coding and re-encoding it. It also supports storing analysis information transparently within the mp3 file itself, so you only ever need analyse each file once. This is a completely optional feature and can easily be turned off should it interfere with your mp3 playback.

Volume adjustment made easy

MP3Gain is a very simple and lightweight tool that is easy and fulfils its purpose. Whether you want to adjust the volume of 2 files or a whole album, there are no limits to the amount of mp3s you can adjust.

Not all CDs sound equally loud. The perceived loudness of mp3s is even more variable. Whilst different musical moods require that some tracks should sound louder than others, the loudness of a given CD has more to do with the year of issue or the whim of the producer than the intended emotional effect. If we add to this chaos the inconsistent quality of mp3 encoding, it's no wonder that a random play through your music collection can have you leaping for the volume control every other track.

There is a remarkably simple solution to this annoyance, and that is to store the required replay gain for each track within the track. This concept is called "MetaData" – data about data. It's already possible to store the title, artist, and CD track number within an mp3 file using the ID3 standard. The later ID3v2 standard also incorporates the ability to store a track relative volume adjustment, which can be used to "fix" quiet or loud sounding mp3s.

However, there is no consistent standard by which to define the appropriate replay gain which mp3 encoders and players agree on, and no automatic way to set the volume adjustment for each track – until now.

The Replay Gain proposal sets out a simple way of calculating and representing the ideal replay gain for every track and album.


  • Free and very lightweight
  • simple to use volume normalisation program
  • Completely lossless volume normalisation due to not altering mp3 encoding


  • Program was last updated in 2009 and sadly looks abandoned
  • Stored volume analysis tags can sometimes conflict with mp3 players

Program available in other languages

MP3Gain for PC

  • Free
  • In English
  • V 1.4.6
  • 4
  • (675)
  • Security Status

User reviews about MP3Gain

  • Kenneth Dotsey

    by Kenneth Dotsey

    I have had to reinstall the program because of computer issues not related to the program but other incidences caused me to re install windows several More

  • Idont Dogmail

    by Idont Dogmail

    10 years ago - a genius here claimed, "Being a producer myself" then went on to berate the program, and anyone that would use it. What that genius did More

  • Anonymous

    by Anonymous

    Can't do without it!.
    Robotic Joe must listen to music like a robot. I listen to it like a human, and I want control over my music...which is w More

  • Anonymous

    by Anonymous

    Re: MP3Gain 1.4.6 .
    Why would anybody even want to have it so that they have the same volume when playing there music. Being a producer myself w More


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Laws concerning the use of this software vary from country to country. We do not encourage or condone the use of this program if it is in violation of these laws.