Audio Volume Booster

Free online audio volume booster — amplify quiet MP3, WAV, or M4A files in your browser. Boost gain up to +20 dB privately with no upload or signup.

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Choose an MP3, WAV, M4A, or OGG file to boost. Everything runs locally — your audio is never uploaded.

Boosts apply a linear gain in decibels, then export 16-bit WAV. Soft clip gently softens peaks that would otherwise hard-clip. Processing stays on your device.

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