Volume Booster
Last updated: June 1, 2026In-browserMake audio louder or normalize it.
Volume Booster is a free online tool to make audio louder or normalize it. It runs entirely in your browser, so your files never leave your device — nothing is uploaded. There's no sign-up, no watermark, and it works on any modern browser on desktop or mobile.
How to use Volume Booster
The Volume Booster makes quiet audio louder — up to 4x — or normalizes loudness for a consistent level across a clip. It's the fix for recordings that are too soft to hear. It runs privately in your browser with no upload and no watermark.
Read the full guide: How to Increase Audio Volume (Make It Louder, Free)
- 1Drop in your audio file.
- 2Increase the volume (up to 4x), lower it, or auto-normalize the loudness.
- 3Export and download the adjusted audio.
Up to 4x louder
Rescue quiet recordings by boosting the volume well beyond the original.
Normalize loudness
Even out a clip so the volume stays consistent from start to finish.
Private and free
Processed on your device with no upload and no watermark.
Volume Booster — frequently asked questions
How do I make an audio file louder?
Drop it in, raise the gain (up to 4x), then export the louder file.
What does normalize do?
Normalizing adjusts the whole clip to a consistent target loudness, so quiet and loud parts are more even.
Will boosting cause distortion?
Very high boosts on already-loud audio can clip. Use normalize, or a moderate boost, for the cleanest result.
Is it free?
Yes — free, watermark-free and no account.
Is my audio uploaded?
No, the processing runs in your browser.
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Send it to someone who needs it or save the link for later.
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