See the original and boosted waveforms side by side as you move the slider — you know exactly what the gain is doing before you download.

Instead of guessing a gain value, normalize automatically: the tool computes the exact gain that brings the loudest peak to 0 dB.

The tool counts samples that would exceed 0 dB and warns you. The soft-clip limiter rounds peaks smoothly so loud sections stay clean.

The boosted file is exported as 16-bit PCM WAV written sample-by-sample in your browser — no re-encoding losses, no quality tricks.

Duration, sample rate, original peak dB, and new peak dB are shown for every file, so you can verify the boost numerically.

After the page loads, everything — decoding, processing, waveform drawing, WAV export — runs locally with zero server contact.