Increase a video's volume
Make a quiet video louder. The picture is copied untouched, so only the sound changes.
Your file stays on your device. Nothing is uploaded.
How to make audio louder
- Choose the recording, song or video.
- Pick how much louder: +10 dB sounds about twice as loud. Or choose "Even out the loudness" for a recording that is too quiet in some places and too loud in others.
- Press "Change volume", listen to the result and download it.
Louder without crackle
Simply turning a file up pushes its loudest moments past what a file can hold; they get cut flat and crackle. We put a limiter after the boost: it lowers just those peaks a little, so the rest gets louder and the sound stays clean.
Evening out the loudness measures the whole file the way streaming apps do and sets it to −16 LUFS, a common level for podcasts and spoken word.
Your files stay on your device
Nothing is uploaded. The volume is changed in your browser, so private recordings stay private.
FAQ
Frequently asked questions
Short answers about how this tool works on your device.
Why is my phone video so quiet?
Phone microphones are set low so loud places don't distort, and speech filmed from a distance ends up quiet. +10 dB or evening out the loudness usually fixes it.
Does it work for a video?
Yes. Choose the video: the picture is copied as it is and only the sound gets louder. You get an MP4.
Are my files uploaded?
No. Everything runs in your browser, so your files stay on your device. Nothing is uploaded.
Is Snipmill free?
Yes. Snipmill is free to use and needs no account.