Normalize Audio
Even out a quiet or inconsistent recording — peak-normalize or apply a fixed gain.
Select an audio file
Even out a quiet or inconsistent recording — peak-normalize to −1 dBFS, or apply a fixed gain. Runs in your browser.
Click to choose, or drop a file here
How to Normalize Audio
- 1
Add your audio
Drop in the recording you want to even out.
- 2
Choose peak or gain
Peak-normalize to −1 dBFS, or apply a fixed gain in dB.
- 3
Normalize and download
Click Normalize audio and save the result.
Related PDF tools
Normalize Audio — frequently asked questions
What does peak normalize do?+
It finds the single loudest sample and scales the whole file so that peak sits at −1 dBFS — as loud as possible without clipping.
Peak normalize vs. adjust gain?+
Peak normalize is automatic and based on the file's own level. Adjust gain applies a fixed dB change you choose, up or down.
Is this loudness (LUFS) normalization?+
No — it's peak-based, which is simpler and safe. True LUFS loudness matching needs a heavier analysis pass.
Is my file uploaded?+
No. Analysis and processing run entirely in your browser.
Do you upload my files to a server?+
No — every tool here processes your files entirely on your device, and nothing is uploaded to a server. The only exception is the AI tools, which send the extracted text (not the file) to Claude to do their work.
Is there a file size limit?+
There's no artificial limit we impose, but since processing happens in your browser, very large files (500+ MB or 1,000+ pages) are limited by your device's memory rather than by us.
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