Change Audio Volume

Make a track louder or quieter. Slide the gain to boost or cut the level in decibels, or normalize the whole file to its loudest safe peak, then export as MP3 or WAV. The waveform updates so you can see the change.

Change audio volume online free to make a track louder or quieter without any software. Slide the gain to boost or cut the level in decibels, or normalize the whole file to its safe peak, then export as MP3 or WAV. It works as an MP3 volume booster and audio gain tool for quiet recordings and uneven clips. Everything runs in your browser, so nothing is uploaded.

Drop an audio file here, or

How it works

  1. 1

    Add an audio file

    Drop in an MP3, WAV, OGG or M4A file to see its waveform.

  2. 2

    Set the level

    Drag the gain slider to raise or lower the volume, or switch on Normalize to maximize it without clipping.

  3. 3

    Export the result

    Preview the change, then export the adjusted file as MP3 or WAV and download.

Instant & 100% private — nothing is uploaded

Everything runs locally in your browser. Your files are processed on your own device and are never sent to a server, so there are no upload waits, no size limits from us, and nothing is ever stored or logged.

Frequently asked questions

How do I increase the volume of a quiet recording?
Drag the gain slider to a positive value to boost the level, watching the waveform grow. If you want the loudest possible result without distortion, switch on Normalize, which raises the whole file so its loudest moment just reaches the safe maximum.
What is the difference between gain and normalize?
Gain applies a fixed boost or cut you choose, measured in decibels. Normalize looks at the loudest peak in the file and scales everything so that peak hits the maximum safe level, which is the best way to even out a recording that is simply too quiet.
Will turning it up cause distortion?
Boosting beyond the point where the loudest peaks reach the maximum can clip and distort. Normalize avoids that by design, and the waveform preview shows you when peaks are getting close to the ceiling so you can back off.
Which formats does the volume changer support, and is my file uploaded?
It reads MP3, WAV, OGG and M4A and exports the adjusted track as MP3 or WAV. All the processing happens in your browser on your own device, so your file is never uploaded to a server, and there is no watermark or sign-up.

More tools

Online Audio EditorFull waveform editor: cut, fade, amplify and apply effects.Trim Audio OnlineSet in and out points on a waveform and export MP3 or WAV.Merge Audio FilesJoin several tracks into one, in the order you choose.Audio ConverterConvert between MP3, WAV, OGG and M4A.Extract Audio from VideoPull the soundtrack out of a video as MP3 or WAV.Online Voice RecorderRecord from your mic and download MP3 or WAV.

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