How to use the noise generator
- Raise one or more color sliders — white, pink, brown or green — to build the sound you want.
- Set the master volume to a comfortable level for sleep, study or masking background noise.
- Pick a sleep timer (5 to 60 minutes) if you want the noise to fade out on its own.
- Press Play to listen, or download a seamless 30-second loop to repeat offline on any device.
This white noise generator gives you four noise colors and lets you blend them freely, so you can shape anything from bright static to a deep brown rumble. White and green noise are great for masking keyboard clicks and office chatter while you concentrate; pink and brown noise are warmer and gentler, which is why so many people use them to fall asleep or calm a restless baby. Tinnitus sufferers and shift workers use steady noise to settle a quiet room. Everything is generated locally in your browser — nothing is uploaded, there is no signup, and the downloadable loop plays anywhere, even with no connection.
FAQ
What is the difference between white, pink and brown noise?
White noise has equal energy at every frequency and sounds bright, like static or a fan. Pink noise rolls off the highs so it sounds softer and more balanced, similar to steady rain. Brown noise drops the highs even further for a deep, rumbling tone many people find the most relaxing for sleep.
Which noise color is best for sleep or focus?
It is personal, so the generator lets you blend all four. Many people lean on brown or pink noise to fall asleep because the warmer tone is less harsh, while white or green noise can help mask office chatter for focused work. Start with one color, then layer in others until the mix feels right.
Can I download the noise as a loop to play offline?
Yes. The download panel renders 30 seconds of your exact mix to MP3 or WAV, and the loop is built to tile seamlessly. Set your media player or phone to repeat it and you have endless background noise that works without a connection or any app.
Does the sleep timer fade out so it doesn't wake me?
It does. Choose 5, 15, 30 or 60 minutes and the noise plays at full level, then fades out gently and stops on its own instead of cutting off abruptly. That smooth fade is designed not to startle you awake once you have drifted off.