Audio Normalizer

Set Loudness to a LUFS Target.

Drop your audio here

Your file stays on your device. Nothing is uploaded.

One file is too quiet, the next one blasts. Normalizing fixes that by measuring how loud the audio is and moving it to a target. Loudness is measured in LUFS, which follows how humans hear rather than the height of the peaks.

Spotify and YouTube play music at about -14 LUFS. Apple Podcasts recommends -16. European broadcasters use -23. Pick the target for where the file is going, or choose peak mode to raise the level without changing the dynamics.

How to use the Audio Normalizer tool

  1. Add one file or many.
  2. Choose the loudness target.
  3. Normalize and download. Several files come back as a ZIP.
  • Podcast episodes that should all play at one level
  • Songs for a playlist or a DJ set
  • Voice recordings that came out too quiet

Tips for the best result

  • Add several files and they all land on the same loudness.
  • Peak mode does nothing to a file whose loudest point is already at full scale.

Quick facts

PriceFree
Works withMP3, WAV, M4A, OGG, FLAC
Where it runsIn your browser, on your device
AccountNot needed

Frequently asked questions

What is the difference between peak and loudness normalizing?

Peak looks only at the single loudest sample. Loudness looks at the whole file the way an ear would, so files end up sounding equally loud.

Will it make quiet parts as loud as loud parts?

Only if you tick the option to even out passages. Otherwise the whole file moves up or down together.

Can it fix a distorted recording?

No. Distortion from recording too hot is permanent.

Why is my file quieter after normalizing?

It was louder than the target. Streaming services would have turned it down anyway.