How to use the Audio Normalizer
- Choose the audio file.
- Pick a loudness target for where it will be played.
- Click Normalize audio.
- Download the result.
Loudness targets
- −14 LUFS: Spotify, YouTube, Apple Music and most streaming.
- −16 LUFS: podcasts and spoken word.
- −23 LUFS: European TV broadcast (EBU R128).
Good to know
Loudness is measured and adjusted with the EBU R128 loudnorm filter, the same standard used by broadcasters, with true peaks held at −1.5 dBTP.
Supported files
MP3, WAV, M4A, AAC, OGG, OGA, FLAC, OPUS, WMA, AIFF, AIF, AIFC, ALAC, AMR, AC3, MP2, M4B, M4R, CAF, AU, WEBA, 3GA, APE and VOC. Files up to 1 GB each.
Frequently asked questions
What is the difference from the volume booster?
The booster adds a fixed amount of gain. The normalizer measures perceived loudness and adjusts it to a standard target, including turning loud files down.
How much does the Audio Normalizer cost?
Nothing. It is free with no registration, no watermark and no limit on how many files you convert.
Do you keep a copy of my files?
We never receive them. All processing happens on your device, so there is nothing for us to store or delete.
Does it work on iPhone and Android?
Yes, in Safari, Chrome and other modern mobile browsers. Short files work best on phones; for long or high-resolution videos a computer is faster.