Audio Loudness Normalizer
Normalize audio loudness online for free to Spotify -14, podcast -16 or EBU R128 -23 LUFS via Web Audio offline rendering, with preview and WAV download - no upload.
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What is Audio Loudness Normalizer?
The Audio Loudness Normalizer measures the loudness of your audio and applies gain to hit a target LUFS level directly in your browser: -14 for streaming platforms like Spotify, -16 for podcasts or -23 for broadcast. The gain is applied through Web Audio offline rendering and the result can be previewed and downloaded as a WAV file.
Key Benefits
- Match loudness between episodes, tracks and clips
- Hit platform targets like Spotify’s -14 LUFS
- Avoid uploading confidential or unfinished audio
- Preview the normalized result before downloading
- Private and instant - everything runs in the browser
Common Use Cases
- •Matching loudness between podcast episodes
- •Preparing music tracks for streaming platforms
- •Leveling voice recordings from different sessions
- •Normalizing clips before video editing
How to Normalize Audio Loudness
- Choose the audio: Select an MP3, WAV, OGG or M4A file from your device.
- Pick the target: Choose -14 LUFS for streaming, -16 for podcasts or -23 for broadcast.
- Normalize: Press Normalize to measure the file and apply the exact gain needed.
- Preview and download: Listen to the normalized result and download it as a WAV file.
Key Features
- Streaming, podcast and broadcast LUFS presets
- RMS-based loudness measurement per file
- Gain applied through Web Audio offline rendering
- In-page preview of the normalized audio
- WAV export playable anywhere
- No upload - audio stays on your machine