White Noise Generator
White, pink or brown noise for sleep and focus — synthesized in your browser.
The White Noise Generator plays white, pink or brown noise for sleep, focus and masking — synthesized live in your browser with the Web Audio API. No audio files, no streaming, works even offline after the page loads.
Each color suits a purpose: white noise (all frequencies equally) masks sharp sounds like snoring or neighbors; pink noise is warmer and softer, popular for focus and falling asleep; brown noise is deep and rumbling — the favorite of many for drowning out distractions.
Sound is generated locally from randomness — nothing is recorded or streamed, and the volume slider lets you find the level that fades into the background rather than demanding attention.
Sound is synthesized locally with the Web Audio API — no audio files, no network. Brown noise is a favorite for sleep and focus; white for masking sharp sounds; pink sits between.
How to use the White Noise Generator
- Choose a noise color: white, pink or brown.
- Press Play — sound starts immediately.
- Adjust volume to a background level.
- Let it run for sleep, study or focus.
- Press Stop when you are done.
Frequently asked questions
What is the difference between white, pink and brown noise?
White noise has equal energy across frequencies — bright and hissy. Pink noise tilts energy toward lower frequencies — softer, more natural. Brown noise tilts further — deep and rumbling like distant thunder or a fan.
Is noise good for sleep?
Continuous noise masks sudden sounds that wake you and can help some people fall asleep faster. Use a low volume and try the warmer colors — loud noise or very high volume can damage hearing over time.
Does this work offline?
Once the page has loaded, yes — the sound is generated locally and needs no connection. Close the tab to stop; browsers cannot play audio in the background after the page is gone.
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