White Noise Generator
Mask distractions for sleep, focus or a fussy baby. Choose white, pink or brown noise or a fan, rain or ocean sound, set the volume, and add a timer that fades out gently.
Sound is generated live in your browser — nothing to download. Keep the volume moderate, especially for babies.
How to use the white noise generator
- Choose a sound. Pink and brown noise are gentler than white noise for most people.
- Press Play and adjust the volume to a comfortable, moderate level.
- Set a timer if you want it to fade out after you fall asleep. Keep the tab open while it plays.
White, pink and brown noise
White noise has equal energy at every frequency, which sounds like a bright hiss. Pink noise falls off at higher frequencies so each octave has equal energy; it sounds softer and is often described as steady rain. Brown (red) noise falls off even more, giving a deep rumble like a waterfall or strong wind.
Steady noise masks sudden sounds such as traffic, voices or a partner's snoring, which can make it easier to fall and stay asleep, and it can help some people focus in open offices.
For infants, the American Academy of Pediatrics advises keeping sound machines well away from the crib and at a low volume, below about 50 decibels. On phones, keep the screen on or the tab in the foreground if playback stops when the screen locks.
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Frequently asked questions
Which is best for sleep: white, pink or brown noise?
It is personal. Many people find pink or brown noise more soothing than bright white noise.
Is white noise safe for babies?
At a low volume and placed away from the crib, generally yes. Keep it under about 50 dB.
Will it keep playing with the screen off?
On most desktop browsers yes; some phones pause audio when the screen locks or the tab is in the background.
Does it use data?
No. The sound is generated by your browser, so there is no audio file to stream.