White noise
White
Stopped
Steady sound for sleep and focus
White noise is a steady hiss that contains every frequency at the same level. It masks sudden sounds – a door, traffic, a neighbour’s TV – so they stand out less. Many people play it to fall asleep, to focus in an open office or to calm a baby.
The sound is generated in your browser, so it never loops with a click and does not need to download. Once the page has loaded, it plays offline.
Four sounds
Switch between them while it plays:
White noise – bright and even, the strongest masking. Pink noise – softer, with less hiss, like steady wind. Brown noise – deep and warm, like a distant waterfall. Rain – soft rain with gentle drops.
Sleep timer
Choose 15, 30, 45, 60 or 90 minutes, 2 hours or all night. In the last minute the sound fades out slowly so the stop does not wake you. The volume starts low; turn it up only as much as you need.
Questions
Is the white noise free?
Yes. It is free, needs no account and plays without ads over the sound.
Can I set a timer to stop the noise?
Yes. Pick a sleep timer and the sound fades out during the last minute and then stops.
What is the difference between white, pink and brown noise?
White noise has equal energy at all frequencies and sounds bright. Pink noise has less energy in the highs and sounds softer. Brown noise has even less high-frequency energy and sounds deep and rumbly.
Will it keep playing with the screen off?
Most browsers keep playing audio when the screen is locked, as long as the tab stays open. Some phones may stop it to save battery.