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Check loudness and audio quality online

TutuAudio measures integrated loudness (LUFS), true peak, loudness range, sample rate, channels, duration, silence ratio and more — 12 metrics — then gives a quality score with suggestions and one-click links to the matching fix. Analysis runs locally with no upload; free, no sign-up. It only measures and never changes your file on its own.

Record

MP3, WAV, M4A, AAC, FLAC, OGG, WebM and the audio in MP4 videos

Everything runs in your browser — the file never leaves this device

Drop in an audio file and get a health report in a few seconds.

How it works

  1. 1

    Drag an audio file onto the page or click "Choose file"

  2. 2

    See loudness, peak and the other metrics with a score

  3. 3

    Click the fix button next to anything out of range

FAQ

Can it fix the problems it finds?
Yes. Each metric that is off has a link to the matching tool — low loudness goes to the loudness normalizer, a high noise floor to noise reduction. The check itself never changes the file.
Is my audio uploaded?
No. Analysis runs in your browser; the file never leaves your device.
Is it free? Do I need an account?
Free, no account, no usage limits.
Does it show the bitrate?
The report shows sample rate, channels and duration, but not the source file’s bitrate. When exporting MP3 you can pick 128, 192 or 320 kbps.
What LUFS should a podcast or short video be?
Podcasts commonly target about -16 LUFS, and many platforms normalize music and video to around -14 LUFS. The report shows how far you are from the target.

Keep going with this audio

Similar tools

Not here? For text-to-speech and AI voices use TutuSound; to edit video or pull audio from video use TutuCut. All audio tools