Volume Booster
Fix a recording that is too quiet. For audio files you can see how much headroom there is and boost to the maximum without crackling.
Runs in your browser. Nothing is uploaded Free, no sign-up Works on mobile
Choose an audio or video file
or drag and drop here
How to use Volume Booster
- Choose an audio or video file.
- Set the volume, or press Maximise for audio files.
- Press Boost volume and download.
Frequently asked questions
How much can I boost?
Up to +24 dB. Beyond the headroom shown, loud parts are softened automatically, so very large boosts can sound compressed.
Can I increase the volume of a video?
Yes. Choose an MP4, MOV or WebM video. The picture is copied unchanged and only the sound is processed.
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