Pink Noise: Softer Than White Noise, for Sleep and Study
A soft, even sound made in your browser, with no whispering or triggers. It can play all night as a quiet backdrop for sleep, study or ASMR.
Free, no sign-up. Plays track after track all night, with a sleep timer.
Pink Noise
Made in your browser, not a recording.
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ChillHow to use pink noise
- When white noise is too sharp
- If white noise sounds like a hiss and tires your ears, try pink noise first. It has far less treble.
- As a study backdrop
- Played quietly, it makes page turns, typing and distant voices less noticeable, so small sounds don't keep pulling your eyes up.
- For sleep
- Set the timer for 30 minutes or 1 hour to fade it out, or choose No limit if you want sound all night.
- Go quieter with headphones
- Pink noise sounds gentle, so it's easy to turn it up too far in headphones without noticing. Lower the volume before you put them on.
- If you like rain sounds
- Pink noise is close to steady rain or wind. If you like rain but not the sudden thunder or birdsong, give it a try.
What is pink noise?
Pink noise has the same energy in every octave. Its energy per hertz drops 3 dB with each octave up, which exactly offsets the fact that higher octaves span more hertz. It sounds softer than white noise and brighter than brown noise, like steady rain or wind.
Because every octave is equally strong, audio engineers use pink noise to test speakers and tune rooms. The name borrows from light too: light that's redder than white has more low-frequency content.
This page starts with white noise and filters the high end down gradually, all inside your browser, so the sound itself uses no data.
What research says
Noise and sleep: a 2021 review of 38 studies on continuous sound for sleep rated the evidence as very low quality, so it isn't clear whether it helps.
Volume: a 2014 study measured 14 infant sleep machines at full volume, and all of them were louder than 50 dBA at 30 cm. Keep the volume low and the speaker away from your bed.
This page isn't medical advice. Noise doesn't treat any condition.
Sources checked Nov 10, 2026.
Need it for a video?
The noise on this page only plays in the browser and can't be downloaded. For soft background music you can download, see the chill page, where every track downloads as a full MP3.
Pink noise questions
Doesn't pink noise give you deeper sleep?
Those studies used it differently. Most of them measured brain waves in a lab and played very short bursts of pink noise at specific moments of deep sleep, not continuous sound all night. This page plays steady background sound, so their results don't carry over.
How is pink noise different from white noise?
White noise is equally strong at every frequency, so it has lots of treble and sounds bright and sharp. Pink noise is equally strong in every octave, with less treble, so it sounds softer and closer to rain.
Can I play it all night?
Yes. With the timer set to No limit it plays until you close the page; pick anything from 15 minutes to 8 hours and it fades out and stops when time is up.