Sound for focus

Pro: the whole night

The full mixes, up to six sounds at once, and timers to all night. New recordings and features reach Pro first.

Mix your own

Yucatán Peninsula, Mexico

Oaxaca, Mexico

Rio de Janeiro, Brazil

Puerto Galera, Philippines

Gelderland, Netherlands

Troms, Norway

Veracruz, Mexico

French Guiana

Lake Ontario

Ashdown Forest

Alajuela, Costa Rica

Northumberland, England

Sierra Mazateca, Mexico

Real field recordings. We name the recordist whenever we know who it was.

Noise

Made in your browser, not a recording.

Made sounds

Focus

jungle rain · 15 min

The Focus mix, on greensound, plays while you work: jungle rain, a real recording, paired with brown noise low underneath.

Rain or brown noise?

Jungle rain carries some natural variation moment to moment, being a real recording rather than a formula, where brown noise has none by design, generated the same way every time (its own page has the detail). The Focus mix pairs jungle rain at 60% with brown noise at 35% underneath. Green and white noise, and every other recording, are one tap away if you would rather try either instead. Jungle rain's level is matched to the rest of the catalog, so switching between it and a noise color does not mean reaching for the volume control.

How loud should it be?

The same guidance holds here as anywhere on this site: quiet enough that a colleague, a phone call, or someone saying your name would still get through. The listen safely note below has more detail.

How long is the Focus mix?

With Pro, the Focus mix is set to sixty minutes, and the timer also offers 15, 30 and 90 minutes, or all night, which is eight hours. Without Pro, it plays for fifteen minutes a day. Whichever length you choose fades out over about half a minute at the end rather than stopping suddenly. The sound itself rises over about four seconds after you press play, rather than starting at full volume all at once.

Updated October 2026

Where the sound comes from

Jungle rain. Recorded near Uxmal, Yucatán, Mexico. Public domain (CC0). License terms Original recording on freesound.org

Brown noise. Made in your browser, not a recording.

Listen safely

This is a sound, played back through whatever speaker or headphones you already own. It doesn't diagnose, measure, or promise anything about how you sleep, focus, or feel — it's just noise and a handful of real recordings, mixed the way you like them.

Keep the volume low enough that you'd still notice a smoke alarm, a phone ringing, or someone at the door. If you fall asleep in headphones, choose a volume and a pair you'd be comfortable wearing all night, and a session length that ends when you'd want the sound to stop.

If you use this near a baby, keep the speaker several feet from the crib, never inside or clipped to it, and keep the volume low — the same care you'd take with any sound machine in a nursery.

If your relationship with sound, or with sleep, feels difficult rather than simply restless, a doctor or audiologist is the right person to talk to. This is a mixer, not a clinician.

Does the sound loop or repeat in a way I'd notice?

The noise colors never repeat, since brown, green and white noise are generated continuously in your browser. Jungle rain is a loop of twenty to forty seconds with a crossfade at the seam so it cannot click, though a close listener may still notice the content come back around.

Can I add more sounds to the Focus mix?

With Pro, yes. The mixer supports up to six sounds at once; add another noise color or recording by hand, or swap jungle rain and brown noise for something else entirely.

Is this different from a coffee shop noise app?

The idea is similar, a steady background sound instead of silence or unpredictable noise, but everything here is either generated live in your browser or a real field recording that states where it was made.