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Change the volume

Make a clip louder or quieter, with a warning before it starts to clip, and a fade in or out if you want one. It is saved as an MP3, and nothing leaves this device.

Drop an audio file here, or

Saved as MP3. It stays on your device.

Questions

Is my file uploaded?
No. The audio is decoded, adjusted and re-encoded inside this browser tab. There is no server that could receive it, and the network tab will show no request carrying it.
What is clipping, and why the warning?
Turning the volume past what the audio format can hold does not make it louder, it flattens the loud parts into a buzz. The tool measures how much of your clip would clip at the volume you chose and warns you, and offers the loudest setting that stays clean.
How loud can I make it?
Up to three times, but only as far as the audio allows before clipping. If a track is already near its ceiling there is little room; a quiet recording can take a lot. The clean limit is shown as you slide.
Can I fade it in or out?
Yes, both, over half a second each. Useful for a ringtone that should not start with a jolt or end with a hard cut.
What does it save as?
MP3 at 128 kbps, made on this device. Your original is untouched.