Loudness standardization
Free Online Audio Normalizer
Set a target loudness for podcasts, music demos, voiceovers, and client review files. This tool uses FFmpeg loudnorm processing in the browser to create more consistent exports without sending audio to a server.
Good for review cuts, private recordings, and unreleased material because the full workflow stays local.
Uses FFmpeg loudnorm processing instead of rough manual gain guesses.
A quick way to create more consistent delivery files for sharing, review, or publishing.
Drag & drop audio here, or click to upload
Supports MP3, WAV, M4A, FLAC, OGG, AAC, and more
How to normalize audio online
- 1.Upload the audio file that needs a more consistent overall loudness.
- 2.Pick a target LUFS value that fits your delivery context, such as podcast, music demo, or broadcast.
- 3.Run the browser-side FFmpeg process, preview the result, and download the normalized export.
Why use this audio normalizer?
More consistent delivery loudness
Prepare podcasts, rough mixes, and review files that land closer to common listening targets.
Better than guesswork gain changes
Loudnorm gives a more structured loudness target than simply pushing a manual volume slider.
Local FFmpeg processing
Useful when you want standardized exports without uploading private speech, demos, or client material.
Simple browser workflow
Pick a target, export as MP3 or WAV, and move on without opening a more complex editor.
Common use cases
- •Normalize podcast episodes before publishing or client review.
- •Make music demos sit closer to common streaming reference loudness.
- •Level out voiceovers before handing them to video editors.
- •Create review exports with more predictable playback loudness.
Tips for better normalization
- •If the source is already clipped, normalization cannot restore the lost peaks or detail.
- •Use WAV if you expect to keep editing after normalization and save MP3 for final sharing.
- •Check the result by ear as well as by target value, especially on dense music mixes.
Audio normalizer FAQ
How is this different from the volume changer?
The volume changer gives direct manual gain control. This tool targets an overall loudness level using FFmpeg loudnorm processing, which is better for consistent delivery.
What LUFS target should I choose?
A common starting point is -16 LUFS for podcasts, -14 LUFS for music demos, and around -23 LUFS for broadcast-style material.
Will normalization fix noisy or distorted audio?
No. It improves loudness consistency, but it cannot remove clipping, hiss, or room noise that is already in the recording.
Can I normalize MP3 and WAV files?
Yes. The browser-side workflow supports common audio uploads and lets you export the processed result as MP3 or WAV.