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Focus · Study · Sleep · Noise masking

White Noise Generator (Focus & Sleep)

Play white, pink or deeper brown noise with one click, adjust tone and volume, and set a 15–90 minute timer that fades out. Great for focus at work, kids’ homework, bedtime and masking renovation or neighbour noise.

Generated locally · No permissions
Noise type

Keep the volume low; for babies, place the device away from the crib.

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How to use the White Noise Generator

  1. Choose a noise colour: white is brighter, pink more natural, brown deeper.
  2. Press Play and raise the volume from low until it just covers background noise.
  3. Use the tone slider to make it darker or brighter and choose a sleep timer; it fades out at the end.
  4. Measure room noise with the decibel meter first to decide how loud you need it.

White, pink and brown noise

White noise has equal energy at every frequency and sounds like TV static, a bright hiss. Pink noise halves its energy each octave (−3 dB per octave) and resembles rain or a waterfall; many people find it more pleasant. Brown (Brownian) noise has even more bass (−6 dB per octave), like distant surf or an aircraft cabin.

Why noise helps focus and sleep

A steady background sound masks sudden noises such as doors, voices or traffic, so you are interrupted or woken less often. Effects vary from person to person, and noise does not treat insomnia or attention disorders.

Safe volume

Keep the volume low for long sessions. For infants, paediatric guidance suggests placing sound machines away from the crib at a low volume (studies suggest below about 50 dB). Adults should also avoid long, loud headphone listening.

Frequently asked questions

Can white noise damage hearing?

Not at low volume. Long, loud listening, especially with headphones, can harm hearing. Set it just loud enough to mask background noise.

Is white noise safe for babies?

It can help with settling, but keep the device away from the crib, the volume low and use the timer. Ask a paediatrician about persistent sleep problems.

Does it keep playing with the screen off?

Most desktop browsers keep playing in a background tab. Phones may pause when locked, depending on the OS and browser.

Is it a looping audio file?

No. The noise is generated live in your browser, so there is no audible loop seam and nothing to download.

Which noise is best for studying?

It is personal. Many people find pink or brown noise gentler than white noise; try each for a few minutes and keep the least distracting one.

White Noise Generator practical guide and common questions

What does a White Noise Generator do?

White noise has equal energy at every frequency and sounds like TV static, a bright hiss. Pink noise halves its energy each octave (−3 dB per octave) and resembles rain or a waterfall; many people find it more pleasant. Brown (Brownian) noise has even more bass (−6 dB per octave), like distant surf or an aircraft cabin.

Who is this for, and when is it useful?

People who struggle to fall asleep, work in a noisy office or need to focus and want background sound to mask distractions.

How do I use this White Noise Generator?

Choose a noise colour: white is brighter, pink more natural, brown deeper. Press Play and raise the volume from low until it just covers background noise. Use the tone slider to make it darker or brighter and choose a sleep timer; it fades out at the end. Measure room noise with the decibel meter first to decide how loud you need it.

How should I interpret the results?

A steady background sound masks sudden noises such as doors, voices or traffic, so you are interrupted or woken less often. Effects vary from person to person, and noise does not treat insomnia or attention disorders.

Where is the work performed, and which services receive data?

White Noise Generator: Runs entirely in the browser without camera, microphone or location permission; inputs and results are never uploaded.