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Private by design. Files are processed on your device and never uploaded.

Normalize your audio

Bring a recording to a consistent listening level, then compare it with the original before downloading.

Drop one audio file here

or browse your device · MP3, WAV, M4A, FLAC, OGG, AAC, Opus and more · up to 50 MB

Target loudness
Quieter-16 LUFSLouder

Lower LUFS is quieter. Start with -16 for voice, -14 for a louder mix, or -23 when you need a restrained level.

The result will aim for -16 LUFS with a -1.5 dBTP ceiling. The measured level will appear after processing.

Choose a file to get started.

Listen before and after

Original

Before

Choose a file to listen to the original.

Normalized

After

Your processed preview will appear here.

Click or drag a waveform to jump to a moment. Arrow keys fine-tune the position; playing one preview automatically pauses the other.

How to normalize audio

  1. Choose one recording from your device. You can use MP3, WAV, M4A, FLAC, OGG, AAC and other common audio formats up to 50 MB.
  2. Choose a target loudness and output format. MP3 is a convenient default; use WAV or FLAC when you want a lossless file.
  3. Select Normalize audio. Click or drag either waveform to compare a moment, check the measured levels, and download your file.

Tips for a balanced result

For spoken audio, -16 LUFS is a practical starting point. A louder music mix may suit -14 LUFS, while -23 LUFS leaves more room for quieter delivery. If you have a required delivery specification, follow that number instead.

Loudness and peak are different: the -1.5 dBTP ceiling helps prevent sharp peaks, so a very dynamic recording may finish below your chosen LUFS target. Use the measured result, not just the slider value, to decide whether to adjust and run it again.

When should you normalize audio?

Use it when voice recordings, podcast segments, demos, or clips have noticeably different listening levels. A consistent level makes a playlist or episode easier to hear without repeated volume changes.

Normalization changes listening level; it does not remove noise, repair distortion, or turn a poor recording into a clean one. Check the original first if clipping or background noise is the main issue.

Private local processing

Your audio is processed directly on your device. Neither the original nor the normalized result is uploaded to a server. Longer recordings take more time and memory, especially on a phone; process one file at a time and keep this page open until the result is ready.

Open-source notices

FAQ

No. Your selected audio and the result stay on your device. Processing happens locally in this browser.
MP3, WAV, M4A, FLAC, OGG, AAC, Opus, WebM audio, AIFF and many other common audio files can be read. You can download as MP3, WAV, M4A, FLAC, OGG or Opus. A particular file may still fail if its audio codec is unsupported or the file is damaged.
Not always. The peak ceiling and the recording's dynamics can limit the adjustment. The measured loudness and true peak shown after processing reflect the actual result.
Choose one file up to 50 MB and about 30 minutes. For WAV output, use a recording under 15 minutes to keep the result manageable on mobile devices. Very large results are stopped before download.
Some browsers cannot play every audio format even when the tool can process it. After normalization, an MP3 sample of up to 30 seconds is prepared for formats the browser cannot play. If that sample is unavailable, you can still download the full result; MP3 or M4A is a widely playable output choice.
Yes. After processing, click, tap, or drag either waveform to seek and play from that point. You can also focus it and use the arrow keys, Home, or End. If your browser needs a short playable sample, its waveform seeks within the sample when available; otherwise use the player's controls.