Will boosting the volume cause distortion?

Pushing well above 100% on audio that's already loud can clip and distort. Start with a smaller boost and check the result.

Can I lower the volume instead of boosting it?

Yes, the same slider works in both directions, reduce it below 100% to quiet a file down.

Does it affect the audio format or quality otherwise?

No, only the volume level changes, the rest of the audio is untouched.

Does Audio Volume Booster upload my files to a server?

No. Audio Volume Booster runs entirely in your browser using on-device processing, your files never leave your device.

Audio Volume Booster

Increase or decrease the volume of an audio file.

Runs in your browser

Drop an audio file here

Choose File

Runs entirely in your browser using an on-device audio engine. The engine downloads on first use, then it's cached.

About this tool

An audio recording that came out too quiet (or occasionally too loud) needs its volume adjusted, and doing that reliably without introducing distortion needs a proper volume adjustment rather than your device's own output volume, which doesn't change the file itself. This tool increases or decreases the volume of an audio file, adjusting the actual file's level rather than just your playback volume.

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