What LUFS target should I use?

Use -14 LUFS for Spotify and Apple Music, -16 LUFS for podcasts, -23 LUFS for broadcast (EBU R128), or -9 LUFS for club/DJ use where maximum loudness is desired.

Is this audio normalizer free?

Yes, 100% free. No account, no file size limits, no hidden costs. Normalize as many files as you need.

Does normalization affect audio quality?

Minimal impact. The tool applies gain adjustment using the Web Audio API. For most use cases the difference is imperceptible. Always keep your original files as backup.

Is my audio file uploaded to a server?

No. All processing happens entirely in your browser using the Web Audio API. Your audio file never leaves your device.

Audio Normalizer Online Free

Q: What is audio normalization?

Audio normalization adjusts the volume of an audio file to a consistent target loudness level (LUFS). Unlike simple volume boosting, it analyzes integrated loudness across the entire track and applies precise gain to hit your target without clipping.

Normalize audio volume to any LUFS target instantly in your browser. Perfect for streaming, podcasts, and DJ sets. No upload required — 100% browser-based.

EBU R128LUFS TargetNo Upload100% Free

Target Loudness Level

Drop your audio files here

MP3, WAV — add multiple files for batch processing

Browse file

MP3WAVFLACOGG

What Is Audio Normalization?

Audio normalization is the process of adjusting the volume of an audio file to a consistent, target loudness level. Unlike simple volume boosting (which just raises the gain), normalization uses integrated loudness measurement (LUFS — Loudness Units relative to Full Scale) to analyze the perceived loudness of the entire track and apply the precise gain needed to hit your target.

This is the same standard used by Spotify, Apple Music, YouTube, and broadcast networks worldwide. Our tool uses the EBU R128 standard via the Web Audio API — the same algorithm used in professional broadcast engineering.

LUFS Standards by Platform

Target Loudness Reference

Spotify-14 LUFSTracks louder than -14 are turned down

Apple Music-16 LUFSSound Check normalization target

YouTube-14 LUFSLoudness normalization applied on upload

Podcast (Apple)-16 LUFSRecommended by Apple Podcasts

Broadcast EBU R128-23 LUFSEuropean broadcast standard

Club / DJ-9 LUFSMaximum loudness for dance floors

Normalization vs Volume Boost

Normalization (LUFS)

Analyzes integrated loudness
Matches streaming platform standards
Prevents clipping automatically
Consistent across entire track

Simple Volume Boost

Just raises gain uniformly
Can cause clipping/distortion
No loudness standard compliance
Inconsistent perceived loudness

Use Cases

DJ Library

Normalize your entire track library to -9 LUFS for consistent levels across your set.

Podcast Production

Hit -16 LUFS (Apple Podcasts standard) for professional, consistent episode volume.

Music Distribution

Normalize to -14 LUFS before uploading to Spotify so your track isn't attenuated.

Broadcast Content

Meet EBU R128 (-23 LUFS) compliance for TV, radio, and streaming broadcast.

How It Works

1.
Analysis: The tool analyzes the peak amplitude of your audio to determine the current loudness level.
2.
Gain Calculation: The required gain is calculated to hit your target LUFS while keeping true peak below -1.5 dBTP to prevent clipping.
3.
Dynamic Processing: A gain node applies the calculated adjustment using the Web Audio API OfflineAudioContext.
4.
Output: The normalized file is exported as WAV at the original sample rate, ready for streaming, broadcast, or DJ use.

Frequently Asked Questions

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