Free, no sign-up. Play steady noise to sleep, focus, or block distractions — adjust volume and set a sleep timer.
Whitebright, full-spectrum
Pinksofter, balanced
Browndeep, rumbly
Volume 60%
Sleep timer off
Off
15 min
30 min
60 min
2 hr
Want it on the go or all night without your phone? soundcore Sleep A30 sleep earbuds add ANC and snore masking, or fill a room with a soundcore speaker.
White, pink and brown noise are generated live in your browser with the Web Audio API. Brown noise has the most low-end; pink sits between brown and white. Keep volume moderate to protect your hearing.