Darwin's Cat

Audio Mastering Tool

Professional mastering with loudness normalization, compression, and true-peak limiting.

Drag & drop WAV file here
or click to select

Professional audio mastering for streaming platforms, YouTube, and CD — right in your browser.

Caution
Processing may be slow — don’t rush, grab a coffee!

How It Works

  1. Upload your WAV file

  2. Choose target platform and style

  3. Download mastered audio

Features

  • Loudness normalization — LUFS targets for Spotify, Apple Music, YouTube

  • True peak limiting — prevents clipping and codec distortion

  • Glue compression — adds punch and cohesion

  • Genre presets — optimized settings for Rock, Electronic, Jazz, and more

  • Instant preview — compare before/after with waveform display

Supported Platforms

Platform LUFS True Peak

Streaming (Spotify, Apple Music)

-14 to -8

-1.0 dBTP

YouTube

-14 to -8

-1.0 dBTP

CD

-14 to -6

-0.3 dBTP

No registration required. Your files are processed locally and deleted after download.

Feedback

Found a bug or have a suggestion? Email us at admin@lafox.net