How to generate noise in 3 easy steps
- 1
Choose the noise color
White, pink or brown — each has a different character, from bright hiss to deep rumble.
- 2
Set duration and volume
From 5 seconds to 2 minutes, at any volume. Press 'Play' to hear it instantly.
- 3
Download as WAV
When it sounds right, press 'Generate & download' to save a lossless WAV file.
Why use the noise generator tool from Super Utility Hub?
Generate perfect white, pink or brown noise in your browser. White noise masks distractions for sleep and focus, pink noise is the classic choice for acoustic testing and baby sleep machines, and brown noise's deeper rumble is loved for study sessions and ADHD focus.
Pick your color, set the duration from 5 seconds to 2 minutes, choose a volume, and play instantly. When you like what you hear, download it as a WAV file to keep.
The noise is synthesized locally — there is nothing to upload, and the download is a genuine stereo WAV, not a stream recording.
- Processes everything in your browser — no upload servers involved
- Free forever with unlimited uses
- Works on Windows, macOS, Linux, Android and iOS
- No watermark or branding on your output, ever
Frequently asked questions
What is the difference between white, pink and brown noise?
White noise is equal energy per frequency (bright hiss), pink noise rolls off the high end gently (soft, natural), and brown noise rolls off even more (deep rumble).
How long can the generated file be?
Up to 2 minutes in one go. If you need longer, loop the WAV in any player.
Is this good for sleeping?
Yes — pink and brown noise are popular sleep aids. Loop the downloaded WAV all night if you like.