Make Audio Louder (Volume Booster)
Make any audio louder.
Boost quiet recordings, songs and voice notes by up to 24 dB without clipping. Free.
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How it works
Choose the file
MP3, WAV, M4A, a voice note or a video.
Set the boost
+6 dB is a clear step up; quiet voice notes may need +12 dB or more.
Download
Save it as MP3 or WAV.
About the Make Audio Louder (Volume Booster)
Completely free: free account, no credits, no limit. It runs in your browser, so your audio stays on your device.
The Volume Booster raises the level of a quiet file by 1 to 24 dB. A limiter stops the loudest moments from clipping, so you can push a quiet voice note or lecture recording much further than a plain gain change would allow.
It shows the file’s current peak, then processes everything in your browser.
What you can use it for
- ✓Quiet voice notes and interviews
- ✓Phone recordings of lectures and meetings
- ✓Songs that play too quietly in the car
Step-by-step guide: How to Make an Audio File Louder (Free, Online)
Frequently asked questions
How much louder can I make it?
+
Up to +24 dB. Above about +12 dB the limiter works hard and dynamics get flatter, which is usually fine for speech.
Does it remove background noise?
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No, it makes everything louder, including noise. Clean the recording first with the free Noise Remover.
What do I get?
+
An MP3 (192 kbps) or a WAV file, whichever you choose, ready to download straight away.
Is it really free?
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Yes. It is completely free, with a free account: no limit and no watermark. It runs in your browser, so your audio stays on your device.