Volume Booster
Boost the volume of any audio file or normalize it to the maximum peak automatically. Free online volume booster with pr
Upload a WAV, MP3, OGG, M4A or WebM file.
Upload a file to begin.
How to Use Volume Booster
- Upload a file: Upload the quiet audio you want to make louder. The current peak level is displayed.
- Set the boost: Drag the Volume Boost slider from -20 dB to +20 dB. Tick Normalize to automatically reach the loudest safe level.
- Boost & download: Click Boost & Download to process and save the louder audio as a WAV file.
About Volume Booster
Volume Booster makes quiet audio louder with two powerful options.
- Gain Boost: Add up to +20 dB or cut by up to -20 dB with the slider.
- Normalize: Automatically scale the whole file so its peak hits near maximum — loud without clipping.
- Peak Meter: See the current peak level of your file before you boost it.
Perfect for fixing quiet recordings, podcasts, phone videos and voice memos that are hard to hear.
Frequently Asked Questions
How do I make audio louder?
Upload a file, set the boost anywhere from -20 dB to +20 dB, optionally tick Normalize, and click Boost & Download.
What does Normalize do?
Normalization scans the file for the loudest peak and scales the whole audio up so that peak reaches near maximum — the loudest possible level without clipping.
Will boosting distort my audio?
If you boost more than 0 dB, loud parts may clip. Use Normalize to get safe maximum volume, or use moderate boost for quiet recordings.