Background Noisesby third space
Noise Generators

White Noise Generator

The classic ambient sound for masking distractions and improving sleep. Consistent energy across all frequencies.

Try White Noise Free

What Is White Noise?

White noise contains equal energy across all audible frequencies, producing a consistent "shhhh" sound similar to TV static, a fan, or an air conditioner. It's the most well-studied ambient sound type, with decades of research supporting its use for sleep improvement, focus enhancement, and sound masking.

White Noise for Sleep

White noise works for sleep by creating a consistent acoustic blanket that masks sudden sounds — car horns, barking dogs, snoring — that would otherwise jolt you awake. A 2021 meta-analysis in Sleep Medicine Reviews found that continuous white noise reduced sleep onset latency by an average of 38%. Background Noises generates high-quality white noise in sessions from 1 minute to 12 hours.

White Noise for Babies

White noise mimics the constant whooshing sound babies hear in the womb, which is why it's so effective at soothing newborns. The American Academy of Pediatrics recommends keeping white noise machines below 50 dB and placing them at least 7 feet from the crib. Start with low volume and increase gradually until it masks ambient sounds.

White Noise for Study & Work

Open offices, coffee shops, and shared living spaces are full of distracting sounds. White noise masks these interruptions without demanding your attention the way music does. Research from Rensselaer Polytechnic Institute found that white noise improved cognitive performance in noisy environments by up to 47%.

Frequently Asked Questions

Is white noise bad for your ears?▼
At safe volumes (under 70 dB), white noise is not harmful to hearing. For reference, normal conversation is about 60 dB. If you're using it for sleep, keep the volume low enough that you can still hear someone speaking normally nearby.
Is white noise safe for babies?▼
Yes, when used correctly. The AAP recommends placing machines at least 7 feet from the crib and keeping volume below 50 dB. White noise should be continuous (not intermittent) and turned off once the baby is in deep sleep if possible.
White noise vs brown noise — which is better for sleep?▼
It depends on personal preference. White noise is more effective at masking high-frequency sounds (voices, alarms), while brown noise is better for low-frequency disruptions (traffic, HVAC). Many people who find white noise too "hissy" prefer brown noise's deeper tone. Try both in Background Noises to find your preference.

Related Sounds

Noise Generators

Brown Noise Generator

Deep, rumbling ambient sound for sleep, focus, and ADHD relief. The internet's favorite noise color.

Noise Generators

Pink Noise Generator

Balanced ambient sound that mimics nature. Proven to enhance deep sleep and memory consolidation.

Noise Generators

White Noise for Babies & Newborns

Gentle white noise that mimics womb sounds. Safe, adjustable, and designed for infant sleep.

Use Cases

Best Sounds for Sleep

Discover which ambient sounds work best for falling asleep and staying asleep. Science-backed recommendations.

Ready to try White Noise?

Pick a sound. Pick a length. Press play. Free on web, iOS & Android.

Try White Noise FreeDownload the App
FAQ·Support·Pricing·Terms·Privacy