Audio / Batch
Batch Loudness Normalizer
Levels multiple audio files to the same target loudness and saves them individually or as ZIP.
Use this toolLoudness Adjuster
Your audio is never uploaded. Everything is processed in your browser.
Load your track
WAV / MP3 / M4A — one track at a time, up to 10 min
Long tracks use a lot of memory. On smartphones we recommend 5 minutes or less.
Analyzing…
0%Choose the result
If you are unsure, Standard is a good choice.
Current loudness
—
LUFS-I
Estimated true peak
—
dBTP
Recommended
Standard
Auto-detected
Output ceiling -1.0 dBTP — the tone is left alone and only the needed amount is adjusted.
Loudness adjusted
Before
—
LUFS-I
— dBTP
After
—
LUFS-I
— dBTP
0:00
0:00
To avoid crushing the sound, the result finished slightly below the target.
16-bit PCM WAV — keeps the source sample rate
Notes on using this tool
- This is a simple loudness tool. It does not replace professional mastering, and it cannot repair a source that is already clipped.
- Your audio is never sent or stored anywhere. Closing the tab discards the result as well.
- Long tracks use a lot of memory on your device. Do not close this tab while processing.
- Only use audio that you own or have permission to process.
