White Noise & Sleep Sounds
Play a steady sound in your browser. Choose generated white, pink, or brown noise, or a real rain recording, and set a timer if you want it to stop.
White noise
Ready to play
Sound starts only when you press Play. Begin at a low device volume, especially with headphones. The timer pauses when playback pauses.
Pick the sound you prefer
White noise sounds brighter, pink noise has a softer balance, and brown noise emphasizes lower frequencies. These three sounds are generated in your browser. Rain is a looped field recording, with a generated rain-like fallback if the recording cannot load. The labels describe their character, not a promised sleep outcome.
Use the timer
Choose Off or 15, 30, 60, or 90 minutes. The sound fades out when the selected amount of playback time has passed. If you pause, the countdown pauses too. Browser and device power settings can interrupt audio, so do not rely on this timer as an alarm.
The rain recording is loaded from this site only when you choose to play it. “Rain (loopable)” by Ylmir is available under CC0; we converted one of its loops to a smaller MP3. No sound choice, volume, or timer value is saved in browser storage or sent to us.
Looking for everyday habits to try? Read our practical guide to better sleep.
Frequently asked questions
Are audio files loaded or are my sound settings saved?
White, pink, and brown noise are generated in your browser. Rain loads one short recording from this site when you play it. Your sound, volume, and timer choices are not uploaded or saved in browser storage.
What is the difference between white, pink, and brown noise?
White noise has energy spread evenly across frequencies. Pink noise puts more emphasis on lower frequencies, and brown noise is deeper still. Rain is a real field recording.
Will the timer keep running while the sound is paused?
No. The countdown follows playback. Pausing the sound pauses the timer; changing the timer starts a fresh countdown from the selected duration.
Can this treat insomnia or guarantee sleep?
No. Choose a comfortable volume if you find a steady sound pleasant. This is a sound tool, not a treatment or a substitute for professional advice.
More sleep tools
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Find the bedtime or wake-up time that lines up with your sleep cycles.
Nap Calculator
Pick a nap length and see when to set the alarm.
Caffeine Calculator
How much caffeine is still in you at bedtime, and your last-call time.
Sleep Debt Calculator
Add up a week of short nights and plan a realistic catch-up.
Bedtime Calculator
Age-based bedtime range for a given wake-up time.