Mix your own ambient soundscape

Blend rain, fire, ocean, brown noise and more into the perfect background for focus, sleep, or calm. Free, no sign-up — it runs entirely in your browser.

presets

rain

thunder

ocean

fireplace

forest

wind

café

white noise

brown noise

pink noise

green noise

gray noise

night

birds

stream

waterfall

singing bowl

wind chimes

crickets

keyboard

airplane

train

The noise colors (white, pink, brown, green & gray) generate real audio in your browser. Loop-based channels play once their audio files are added.

One calm tab for focus, sleep, and relaxation

Soundlull is an ambient sound mixer. Tap any tile to start a channel, then layer several together and balance them with the per-channel volume sliders until the mix feels right. Turn on Oscillation to let active channels gently breathe so loops never feel repetitive, and set a sleep timer to fade everything out after 15, 30, or 60 minutes. Working to a clock? The Pomodoro timer pairs the same focus mix with timed work-and-break intervals.

The noise colors — white, pink, brown, green, and gray — are generated live in your browser using the Web Audio API — there's nothing to download and no file to load. Your active mix is saved to the page address automatically, so you can bookmark it or share the link and the exact soundscape comes back.

Browse every sound

Rain Sounds Steady rainfall to mask noise and settle a busy mind. Thunderstorm Sounds Distant rolling thunder over rain — cozy and grounding. Ocean Waves Slow rolling waves with a long, calming rhythm. Fireplace Sounds Crackling fire warmth — cozy focus and wind-down. Forest Sounds Leafy woodland ambience with a gentle breeze. Wind Sounds Soft, airy wind — a clean low-detail backdrop. Coffee Shop Sounds The murmur of a busy café — chatter, cups, espresso. White Noise Equal energy across frequencies — a steady masking hiss. Brown Noise Deep, soft rumble — the trending focus & ADHD favorite. Pink Noise Balanced, natural-sounding noise — softer than white. Green Noise Mid-frequency rush like steady water — the trending sleep pick. Gray Noise Shaped to sound equally loud at every pitch — full and even. Night Sounds Calm nighttime ambience — crickets and still night air. Bird Sounds Morning birdsong — bright, fresh, gently uplifting. Stream Sounds A bubbling creek over stones — bright, fresh, and lively. Waterfall Sounds The steady roar of falling water — a deep, even wash. Singing Bowl Warm resonant tones — meditation and slow wind-down. Wind Chimes Gentle tinkling chimes on a soft breeze — light and airy. Cricket Sounds Steady summer-night chirping — calm and familiar. Keyboard Sounds The soft clatter of typing — busy, focused, productive. Airplane Cabin Sounds The deep cabin drone of a plane in flight — rich and enveloping. Train Sounds The rhythmic clack of a train on the rails — rocking and steady.

Frequently asked questions

What is brown noise?

Brown noise (also called red noise) has much more energy in the low frequencies and rolls off the highs, giving it a deep, soft rumble like a steady waterfall or distant surf. Many people find it warmer and less harsh than white noise.

What's the difference between white, pink, brown, green, and gray noise?

They differ in how energy is spread across frequencies. White noise is flat and bright, pink is balanced and natural, brown is deep and bass-heavy, green concentrates on the mids like rushing water, and gray is shaped so every pitch sounds equally loud. Try each and use whichever you find most comfortable.

Can I leave Soundlull playing all night?

Yes. Sounds loop seamlessly and will keep playing as long as the tab is open. If you'd rather it stop on its own, use the sleep timer to fade everything out after 15, 30, or 60 minutes.

Can I save or share my mix?

Yes. Your active sounds and their volumes are stored in the page's web address, so you can bookmark a mix or copy the link to share it. Reopening the link restores the exact mix and volumes.