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Audio Volume Normalizer

Match a target loudness (LUFS) for streaming, voice, broadcast, or music — all in your browser.

Your data never leaves your device
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Frequently Asked Questions

  • What's LUFS?

    LUFS (Loudness Units relative to Full Scale) measures perceived loudness. −14 is Spotify's target, −23 is the EBU broadcast standard.

  • When should I use two-pass?

    Two-pass is slower but more accurate, especially when a track has wide dynamic range. Single-pass is fine for most voice and music.

  • Does this upload my audio?

    No. Normalization runs with FFmpeg compiled to WebAssembly. Your audio never leaves your device.