Noise Generator
White Noise Generator
Play white, pink or brown noise online to sleep, focus or mask distractions — a free noise machine that loops seamlessly, right in your browser.
Flat, full spectrum — like TV static.
Start at a low volume. Audio is generated locally in your browser — nothing is streamed or uploaded.
White, pink and brown noise — which should you use?
Pick a color and press play. White noise is flat across the whole spectrum — the classic static hiss that’s great for masking sudden sounds and helping babies sleep. Pink noise softens the high frequencies for a balanced, rainfall-like sound many people prefer for focus and reading. Brown noise (also called red noise) rolls off the treble even further, leaving a deep, ocean-like rumble that’s become a favorite for relaxation and sleep.
Everything is generated live with the Web Audio API and loops without a gap, so you can leave it running all night. Want to explore specific frequencies instead? Try the tone generator, or check your setup with the mic test.