Online Tool Store
White Noise Generator
Play adjustable white, pink, and brown noise for focus, relaxation, or sleep with a built-in session timer. Generated entirely in your browser.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
Soundscape
Pink noise
Ready for a 30-minute focus session
Time remaining
30:00
Audio is generated locally. Keep headphone volume at a comfortable level.
How it works
- Choose white, pink, or brown noise to match your environment.
- Adjust the volume and tone until the sound sits comfortably in the background.
- Pick a session length and start listening. The timer stops playback automatically.
FAQ
What is the difference between white, pink, and brown noise?
White noise spreads energy evenly across frequencies and sounds bright. Pink noise reduces higher frequencies for a more balanced sound, while brown noise emphasizes lower frequencies for a deeper rumble.
Can I use this while studying or sleeping?
Yes. Choose the sound you find least distracting, set a comfortable volume, and use the session timer. Keep volume low, especially with headphones or overnight use.
Does the audio keep playing when my screen locks?
Browser and device power-saving rules vary. Some mobile devices pause web audio when the browser is backgrounded or the screen locks.
Is any audio downloaded or streamed?
No. The browser creates the noise in real time with the Web Audio API. Your settings and listening session remain on your device.
Do I need to keep the browser tab open?
Yes - the noise is generated live by the Web Audio API in that tab, so closing it or navigating away stops playback.
How we compare
| Feature | Online Tool Store | Streaming apps | Hardware machine |
|---|---|---|---|
| No account or install | ✓ | Varies | Not applicable |
| White, pink, and brown noise | ✓ | Varies | Varies |
| Works without streaming audio | ✓ | Often no | ✓ |