Audio Normalizer & Fade

Make audio louder evenly, add fade in/out or convert to mono. Free, no sign-up, files stay on your device.

Choose an audio fileor drag and drop a file here

🔒 100% private — processing happens in your browser. Nothing is uploaded.

How to use the audio normalizer

  1. Choose an audio file (MP3, WAV, M4A, OGG, FLAC).
  2. Choose normalization, fade in/out, mono and silence trimming.
  3. Click Process, listen and download the WAV.

Peak normalization raises (or lowers) the whole recording by the same amount so the loudest moment reaches the level you choose — quiet voice memos and podcast clips become clearly audible without distortion. Fades make ringtones and clips start and end smoothly; mono halves the file size for speech. Everything is processed on your device.

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