White Noise Generator
Generate white noise, pink noise, or brown noise online for free. Perfect for sleep, focus, studying, and blocking distractions — with volume control and a sleep timer built in.
Ready — Brown Noise
Noise Type
Deep, low rumble — ideal for sleep, relaxation, and ADHD focus
Volume
50%
Sleep Timer
Timer starts when you press Play
Which Noise Type Should You Use?
White Noise
Best for: Masking distractions
- ✓Office background noise
- ✓Noisy neighbours
- ✓Blocking voices
- ✓Tinnitus relief
Sounds like: TV static, a loud fan, or a rushing air conditioner
Pink Noise
Best for: Focus & deep sleep
- ✓Studying and reading
- ✓Deep sleep stages
- ✓Meditation
- ✓Memory consolidation
Sounds like: steady rainfall, a waterfall, or gentle wind
Brown Noise
Best for: Sleep & ADHD focus
- ✓Falling asleep faster
- ✓ADHD concentration
- ✓Anxiety relief
- ✓Relaxation
Sounds like: heavy rain, ocean waves, or distant thunder
How to Use the White Noise Generator
Choose your noise type
Select White, Pink, or Brown noise depending on your goal. Brown noise is the most popular for sleep. Pink noise works well for focus and studying. White noise is best for masking specific background sounds.
Press Play
Click the Play button to start the noise. The generator runs entirely in your browser using the Web Audio API — no audio file is downloaded. The sound is generated mathematically in real time.
Adjust the volume
Use the volume slider to set a comfortable level. A good sleep volume is quiet enough that you can still hear someone speak normally in the same room — roughly 50–65 dB.
Set a sleep timer
If you want the noise to stop automatically, choose a timer: 15 minutes, 30 minutes, 1 hour, or 2 hours. The generator will fade out and stop automatically when the timer ends.
Keep the tab open
The noise plays continuously as long as this browser tab is open and not suspended. On mobile, keep the screen on or use your phone's lock-screen media controls to pause.
Benefits of White Noise for Sleep & Focus
✓ Better sleep quality
White and brown noise create a consistent audio environment that masks sudden noises like traffic, neighbours, or a snoring partner. By preventing your brain from being startled awake by sudden sounds, noise generators help you fall asleep faster and stay asleep longer.
✓ Improved focus and concentration
Background noise at the right level reduces the cognitive disruption caused by random sounds. Pink and brown noise in particular have been shown to improve sustained attention in open-plan offices and home study environments by creating a constant, predictable auditory backdrop.
✓ ADHD symptom support
Many people with ADHD find that brown noise reduces internal mental chatter and helps them sustain attention on a single task. The low-frequency rumble provides a grounding sensation that some describe as 'quieting the brain'. Brown noise for ADHD has become a widely reported self-management strategy.
✓ Tinnitus relief
White noise is commonly recommended by audiologists for managing tinnitus (ringing in the ears). By filling the quiet with broadband noise, white noise reduces the perceived loudness of tinnitus and makes it easier to sleep and concentrate.
✓ Baby sleep and settling
Newborns are accustomed to constant sound from the womb. White noise closely resembles the whooshing sounds babies hear before birth, which is why it is highly effective at soothing fussy babies and helping them sleep longer. Keep the volume below 65 dB and keep the source at a safe distance from the crib.
Frequently Asked Questions
What is white noise?▼
White noise contains all audible frequencies at equal intensity. It sounds like loud static or a rushing fan. Because it covers all frequencies equally, it is very effective at masking other sounds — voices, traffic, and office noise all get masked by white noise.
What is brown noise and why do people like it?▼
Brown noise has more energy at low frequencies and less at high frequencies, creating a deep, warm rumble similar to heavy rain or ocean waves. People prefer it over white noise because it is less harsh and more soothing. It is especially popular for sleep and for ADHD focus.
What is pink noise?▼
Pink noise falls between white and brown noise in terms of frequency balance. It sounds like gentle rain or a waterfall — softer than white noise but brighter than brown noise. Research suggests pink noise during sleep may improve memory consolidation and deep sleep quality.
Does brown noise help with ADHD?▼
Many people with ADHD report that brown noise helps them focus by providing steady auditory stimulation that reduces the urge to seek novel sounds. Some research supports this, though individual responses vary. It's worth trying for 20–30 minutes during a focused work session to see if it helps you.
Is it safe to play white noise all night?▼
At a moderate volume (below 65 dB — roughly the level of normal conversation), white noise is considered safe for adults during sleep. Avoid placing a speaker close to your ears. Use the sleep timer to auto-stop after 30–60 minutes if you prefer not to run it all night.
Can white noise help babies sleep?▼
Yes. White noise resembles the whooshing sounds babies hear in the womb, making it very effective at soothing newborns and extending sleep. Keep volume below 65 dB and position the sound source at least 2 metres from the crib. Always use the sleep timer so the noise stops after the baby is settled.
Does this generator work on iPhone and Android?▼
Yes. The generator uses the Web Audio API which works in Chrome and Safari on iOS and Android. On iPhone, make sure your Silent switch (side switch) is not active — the Web Audio API bypasses the ringer volume but not the Silent switch on some iOS versions.
Does the noise stop when I close the tab?▼
Yes. The noise is generated by your browser and stops immediately when you close or navigate away from the tab. If you want the noise to run in the background on mobile, keep the browser tab open and your screen active, or lock the screen after pressing play (works on most Android browsers).
What is the difference between white noise and pink noise for sleep?▼
Both can improve sleep, but they work differently. White noise is better for masking specific disruptive sounds (snoring, traffic). Pink noise has been studied more for improving deep sleep quality and memory consolidation. Brown noise is the most popular overall for sleep because its low-frequency rumble is the least fatiguing to hear for long periods.
Can white noise help with tinnitus?▼
Yes. White noise is the most commonly recommended sound therapy for tinnitus. By filling silence with broadband noise, it reduces the contrast between the tinnitus ringing and the surrounding environment, making the tinnitus less noticeable. Audiologists call this 'sound masking'. Set the volume just below your tinnitus level rather than above it.