Volume Booster
Make quiet recordings louder, turn down loud ones, or auto-normalize to a steady level.
- Processed locally — your files never leave your device
- Free, no sign-up
- No file limits
How to use Volume Booster
- 1
Drop an audio file above.
- 2
Set the volume or choose Auto normalize.
- 3
Click Apply and download.
Features
- Up to 400%Rescue whisper-quiet recordings and voice memos.
- No clippingA limiter catches peaks so boosted audio doesn’t crackle.
- Loudness normalizeEBU R128 normalization gives a consistent, broadcast-style level.
Frequently asked questions
Which should I use — volume or normalize?
Normalize is best when you don’t know how much to boost or want several files at the same level. Use volume for a precise change.
Does it keep my file format?
Yes. MP3 stays MP3, WAV stays WAV, and so on.
Is my audio uploaded?
No, it’s processed in your browser.