✦ YOUR SPACE TO SWITCH OFF
Free Brown Noise
for a Softer Background
Settle into deep, warm brown noise. Listen on its own or add a little rain, adjust your mix and let the sleep timer take care of the finish.
Find your sound
1 of 3 layersA PLACE TO START
Brown Noise selected. Add up to two more sounds.
Darkens this page, not your screen brightness.
Optional while listening. Uses more battery.
Preparing offline listening…
On phones, locking the screen or switching apps may interrupt audio. If that happens, return here and tap to resume.
Your saved mixes
Up to three favourites, saved only in this browser.
Your quiet corner is waiting. Save a mix you love.
LOWER, WARMER, STEADIER
Meet the deeper end
of the noise spectrum.
What is brown noise?
Brown noise, also called Brownian or red noise, has a spectrum that decreases by roughly 6 dB per octave. It has much more low-frequency energy than white noise, creating a deep rumble rather than a bright hiss.
This generator uses a gently leaky integration filter to keep the very lowest frequencies under control.
Build a softer background
Start with brown noise on its own. Add Gentle Rain at a low level if you would like some light detail above the rumble. The Sleep preset combines these two textures.
Small phone speakers reproduce less bass than larger speakers or headphones, so the same mix can sound different across devices. Keep the level comfortable rather than turning it up to chase the bass.
Brown or pink?
Choose pink noise if brown feels too heavy. Pink has a more balanced spread across octaves. For a brighter, consistent hiss, return to white noise sounds.
Sound preference is personal. This tool is for creating a background you enjoy, with no promise to improve sleep or attention.
A LITTLE CLARITY
Good to know.
A few answers before you settle in.
Is this white noise generator really free?
Yes. All six sounds, the mixer and the sleep timer are free to use. There are no accounts, subscriptions or audio ads.
How are white, pink and brown noise different?
White noise has equal power per hertz and sounds bright. Pink noise has equal power per octave, giving less emphasis to higher frequencies. Brown noise falls off more steeply toward higher frequencies and sounds deeper.
Can I mix several sounds?
Choose up to three sounds and adjust each slider. Try a little rain with brown noise, or a fan beneath pink noise. Selected layers stay silent until you press Play.
What happens when the timer ends?
The mix fades out over the last 30 seconds and stops silently. Pausing does not pause the countdown: the original finish time stays the same. Changing the timer starts a new countdown; No timer removes it.
Will audio keep playing with my phone locked?
It depends on your phone, browser and power settings. Playback may be interrupted when you lock the screen or switch apps. Installing the app does not guarantee background playback. Keep screen awake can help while the page is visible, where supported.
Are the rain and ocean sounds recordings?
No. Every sound is generated on your device. The fan, rain and ocean are synthesized, nature-inspired textures, not field recordings. No microphone access is needed.