Audio Normalizer

Normalize sample peak locally; this is not the same as LUFS loudness normalization.

Choose audio file

Target peak (dBFS)

Mode

—Input peak

—Gain needed

—Target peak

—Input RMS

Choose an audio fileThis is peak normalization, not LUFS loudness normalization.

Audio Normalizer: Peak, RMS, Crest & Gain Audit

Verify peak-normalization gain with RMS, crest factor, predicted output peak and explicit measurement boundaries before exporting WAV.

Peak ceiling (dBFS)

Crest warning below (dB)

Audio processing cluster

Verify the source before trusting the render

Decode locally, confirm sample rate, channels, duration and level evidence, then apply the transformation. Keep codec, browser decode and export-format limits explicit.

Start: Audio Editor Inspect a File

All 24 audio tools

Sample RateResample rate, Nyquist and output frames Stereo → MonoDownmix, correlation and cancellation risk Speed ChangerDuration, pitch and resampling behavior Loop MakerLoop boundaries, seam and repeated duration Frequency AnalyzerFFT resolution and spectral evidence Bass BoosterLow-shelf gain and clipping headroom Audio JoinerClip order, transitions and output duration Loudness AnalyzerLUFS planning, peak and dynamics

Codec and measurement boundaries

Browser decoding differs across Safari, Chrome, Firefox, iOS, and Android. Rendered edits are exported as WAV unless a tool explicitly states another supported container. Loudness analysis is a practical BS.1770-style estimate rather than a certified meter, and sample clipping checks do not replace true-peak oversampling.

Peak target must be attainable

Peak normalization now rejects a completely silent source instead of implying that silence reached the requested dBFS ceiling. It remains peak normalization, not LUFS normalization.