Green Noise
Free on ChillSounds.io
Soft mid-range noise, like a distant waterfall
Tap to start:
852 Hz Pure
ADHDPure Solfeggio frequency for deep focus
Gamma 40Hz
40Hz binaural beats for cognitive boost
Deep Work
Intense focus with gamma waves
Light Focus
Gentle 18Hz beta for light tasks
Flow State
Relaxed 10Hz alpha for creativity
8D Odyssey
ADHDImmersive spatial audio with stereo panning
How it works
Binaural Beats
Different frequencies in each ear create a rhythmic pulse your brain perceives, helping with focus.
Noise Layers
Layer brown, green, pink, or white noise on top of any mode using the buttons below.
8D Spatial Audio
Immersive panning creates a moving soundscape that keeps ADHD brains engaged.
Free green noise generator for sleep and focus
Green noise is a soft, mid-range sound that sits between deep brown noise and bright white noise. Ours is pink noise shaped to the middle of the hearing range, so it sounds like a distant waterfall or steady wind through trees. It is generated live, so it never loops.
How to use it
Start quietly and let it run in the background. It works well on speakers at bedtime. Add a little brown noise in the player for more depth.
Who it helps
People who find brown noise too heavy and white noise too hissy, and want something in between for sleep, reading or work.
Common questions
What is green noise?
Green noise is noise focused on the middle frequencies, roughly where most natural sounds sit. Unlike white or pink noise it has no strict scientific definition, so different apps sound a little different. Ours is pink noise with the deepest rumble and the highest hiss gently rolled off.
Is green noise good for sleep?
Some people find it calmer than white noise because it lacks the sharp hiss. There is no research showing green noise beats other colours for sleep. Pick the one you stop noticing.
Green noise vs brown noise: what is the difference?
Brown noise is deeper and rumbly, like distant thunder. Green noise is lighter and more open, like a waterfall. Try both; you can layer them in the player.
Is this green noise free?
Yes. No account, no ads, no subscription, and no recording that repeats.
Honest About the Science
I have ADHD. I built ChillSounds because these sounds help me focus. But I believe in honesty, here's what the science actually says.