Increase audio volume
Make audio louder (or quieter) and even out the volume of several songs.
Turn up the volume.
Available in: 
Increase audio volume: what it is for
The tool raises or lowers the volume of audio files with a limiter that prevents distortion. You can also normalize, setting the audio to the standard volume used by platforms.
The audio is not uploaded to any server: everything is processed in your browser, in full privacy.
How to use
- Upload the audio files.
- Choose boost/reduce or normalize.
- Download the adjusted audio.
When to use it
- Audio recorded too quietly.
- Even out the volume of several songs.
- Podcasts and lectures.
Frequently asked questions
What is the difference between boosting and normalizing?
Boosting adds the same amount of volume to the whole file. Normalizing sets the volume to the standard used by music platforms, so several files end up equally loud.
Can the sound distort?
If you boost too much, yes. That's why the limiter stays on: it holds the peaks so the sound doesn't clip.
Does it work with video?
Yes, but the result is audio only. To keep the video, use the video converter tool.
Is it really free?
Yes, 100% free. No sign-up, no subscription and no usage limits. All Tools123 tools are free and run right in your browser.