Normalize volume
Even out the volume of your audio files (MP3, WAV, FLAC, OGG, M4A, AIFF) in the browser, by average loudness or peak, without clipping.
Processed on your device: your file never leaves your computer
Up to 50 files, 200 MB max each.
What Normalize volume does
Make a recording that came out too quiet louder, or match several tracks so they sound alike: the tool measures each whole file and applies one gain, so the dynamics don't change and there are no jumps. Choose average loudness (−16 dB, comfortable for voice and podcasts) or peak level (−1 dB). It never clips the peaks. It works in batches and on your device: files aren't uploaded to any server.
Limits
- Up to 50 files at a time, up to 200 MB each.
- With Pro: files up to 500 MB and up to 500 per batch.
- A job that takes longer than 20 minutes is stopped so it doesn't freeze your device.
- Processed in your browser: your files are never uploaded to a server.
Frequently asked questions
What's the difference between average loudness and peak?
Peak only looks at the loudest point and puts it at −1 dB: it's safe, but two files can still sound different. Average loudness evens out how each file sounds (−16 dB RMS); if reaching it would push the peak over −1 dB, it stops at that limit.
Does it distort the sound?
No: one gain is applied to the whole file and −1 dB is never exceeded, so nothing clips. It isn't a compressor: a part much louder than the rest stays that way.
Why did my audio barely change?
If its peak is already near −1 dB or its average near −16 dB, the gain needed is small. The applied gain is shown next to each result. To avoid boosting noise, the largest increase is +30 dB.
Is there a limit?
Up to 200 MB per file on the free plan (500 MB with Pro), 3 hours per file and several files per batch. Each file is read twice (measure, then apply), so it takes a little longer than a conversion.