Shape volume and dynamics
Gain is applied first; normalization targets a safe peak, while the limiter prevents overs.
Choose an audio file first.
Output preview
Load audio to see the local preview.
Three controls for simpler volume work
Gain, normalization, and limiting run in one local processing flow. Preview the adjusted AudioBuffer, then package it as WAV or MP3.
3-step quick guide
- 1Choose an audio file and wait for browser decoding.
- 2Set 0%–300% gain, optionally enable normalization and the limiter, and preview it.
- 3Choose an output format, export, and download the adjusted audio.
Zero-upload privacy promise
Audio is processed in this browser with Web Audio API, Canvas, and Blob; it is never sent to a server.
No upload endpoint is used; speed depends on your device and browser support.
Frequently asked questions
What does 100% mean?
100% is the original amplitude. 200% is about twice the amplitude, with the limiter still able to keep peaks in range.
Does normalization distort audio?
It scales samples toward a safe peak only when needed; the limiter clips samples that exceed the configured range.
Can I export MP3?
Yes. MP3 is generated in the browser with a JavaScript encoder; WAV keeps uncompressed samples.