Client-Side Audio Normalizer
Peak & RMSLevel quiet recordings and optimize audio for podcasting and streaming platforms without cloud uploads or quality loss.
How Audio Normalizer Works
Select or drop any MP3, WAV, AAC, or FLAC audio file. The browser decodes it via the Web Audio API.
Choose your target loudness preset (-0.1 dBFS, -1.0 dBFS streaming true peak, or -14 dBFS podcast RMS).
Click 'Normalize Audio' to compute peak gain adjustments and export a lossless 16-bit WAV file instantly.
Audio analysis and sample scaling run 100% on your local CPU. No audio data ever leaves your browser.
Frequently Asked Questions
100% Free & PrivateWhat is audio normalization and why should I use it? +
Audio normalization scans the highest audio peak across an entire file and adjusts gain so the loudest point hits a target level (such as -1.0 dBFS) without distorting or clipping.
Does normalization change audio dynamics or add compression? +
No. Peak normalization applies a linear, uniform volume boost or cut to the entire waveform equally. The relative dynamics and frequency response remain identical.
Which formats can I normalize offline? +
Any format supported by your browser's audio decoder, including MP3, WAV, AAC, M4A, FLAC, and OGG. The normalized output is exported as an uncompressed 16-bit WAV.
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100% Local & In-Browser Execution
Your device powers this tool. Zero cloud uploads.
All file processing, calculations, and conversions run entirely inside your browser using your device's CPU and memory. Your data never touches any external server.
Processing speed depends on your device's hardware. Handling heavy media or large documents may temporarily utilize local RAM and processor capacity.
Provided on an “as is” basis without warranties of any kind. Always keep backups of critical source files. Subject to our terms.