Store
Immersive sound for focus, rest, and calm.
Expertly tuned noise colors, rain, fire, and meditative soundscapes. Plays offline with no ads and no subscription required for core sounds. Hear what your mind has been missing...
Commerce
Local Purchase Flow
Running a simulated purchase adapter with a realistic loading delay. Purchases unlock the selected item locally so every premium soundscape remains testable without store setup.
Owned items remain available offline after unlock.
SimplyRain

Layer rain intensity, thunder probability, oscillation, and a timer into a flexible storm soundscape that still works offline.

Offline ready
SimplyBeach

Dynamic wave pulsing, seagull activity, and wind controls bring the beach forward without forcing the UI to know anything about the native audio implementation.

Offline ready
SimplyFire

Blend core fire intensity with pop/crackle and sizzle layers while keeping purchases and controls independent from the playback engine implementation.

Offline ready
SimplyMeditate

An experimental labs soundscape that links breathing programs to oscillation, layers color noise for a soft bed, and can add binaural beats for deeper focus.

Offline ready
Procedural Rain

Every drop, wind gust, and thunder roll generated entirely in real time via the Web Audio API. Shape the surface character, wind oscillation, and thunder from a pure synthesis engine.

Offline ready
Procedural Fire

Smouldering embers to a roaring blaze — all synthesised. Control the draft sway, ember density, pop & crackle texture, and sizzle presence with zero audio files.

Offline ready
Procedural Airplane

The low rumble of a cruising aircraft — engine harmonics, broadband cabin roar, and a subtle A/C pressure hum — all generated in real time without a single audio file.

Offline ready
Procedural Fan

The rhythmic whoosh of a desk or floor fan — blade harmonics, motor hum, and turbulent airflow. Dial in speed, oscillation sweep, and proximity for your ideal air-mover.

Offline ready
Procedural Night Woods

A still summer night in the forest — spatialised cricket choruses, the gentle rustle of leaves in the wind, a deep sub-bass atmosphere, and occasional distant owl calls that drift across the stereo field.

Offline ready
Celestial Drone

Root, third, and fifth sine tones breathe in and out on independent random walks, seated in a gentle Schroeder reverb. A calm anchor built from just nine parameters and a lot of patience.

Offline ready
Wind Chimes

Five inharmonic modal chime voices tuned to a pentatonic scale. Low gusts produce isolated clinks; high gusts produce clusters. Pure synthesis — every strike is unique.

Offline ready
Tibetan Singing Bowls

Seven inharmonic bronze bowl voices, each with 12–18 second decay. Random detune, long reverb tails, and intervals that stretch from 30 seconds to over a minute.

Offline ready
Zen Garden

A Japanese tea garden at dusk — the hollow wooden clack of a shishi-odoshi, long-decaying singing bowls, and pentatonic wind chimes drifting through an understated reverb.

Offline ready
Deep Space

Wide-band brown noise flowing through a 6-stage all-pass phaser cycling at 0.008 Hz. Occasional scale-quantised beeps, steam-vent bursts, and two sustained perfect-fifth drones ground the texture.

Offline ready
Passenger Train

A sleeper car on a long night run — a low brown-noise rumble, rhythmic track clacks with stereo ping, and a muffled five-partial whistle that drifts past every couple of minutes.

Offline ready
Underwater Coral Reef

A deep coral reef at dusk — the constant crackle of snapping shrimp, slow overhead wave swells muffled through water, and occasional whale calls gliding past in the deep blue.

Offline ready
Underground Cavern

Water drips through a multi-tap delay and long reverb inside a huge limestone cavern. Underground wind rumbles at sub-bass frequencies; rare stone-shift voices mark the passage of geological time.

Offline ready
Babbling Forest Creek

A creek built entirely from thousands of short noise grains per second, each with its own pitched bandpass filter. Shape the flow rate, brightness, and the depth of the surrounding forest bed.

Offline ready
Guided Soundscapes
Babbling Brook

Sink into the peaceful rhythm of a sunlit brook weaving through a quiet forest. Soft gurgles and ripples create a natural, ever-shifting soundscape perfect for focus, reading, or deep rest.

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Offline ready
Summer Waves

Warm waves roll in from a calm sea, washing over a sandy beach in a steady, soothing rhythm. Let the natural ebb and flow guide you into a state of effortless relaxation.

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Offline ready
Thunderstorm

Heavy rain beats against the windows while distant thunder rolls across a wide-open sky. This rich, dramatic soundscape masks distractions and creates an enveloping cocoon of sound.

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Offline ready
Winter Nights

A hushed winter night settles over a snow-covered landscape: the faint creak of trees, a distant wind, and deep quiet. Ideal for sleep, meditation, or finding stillness in a noisy world.

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Offline ready
Settings
Home Screen
Landing Page
Show Landing Page
Display the SimplyNoise marketing page as the home screen. Turn off to show the Soundscapes list directly.
Theme
Appearance
Optional Sync
Accounts
Enable optional account layer
Anonymous playback remains available. Signed-in users can later sync favorites, presets, routines, and purchase state.
Developer
Developer Tools
Preview Frame
Choose a 9:16 phone frame or 4:3 tablet frame to validate responsive layouts directly in the browser.
Native IAP and optional account services are wired behind adapters with safe fallbacks so the app remains runnable before store products and backend credentials are provisioned.
Unlock All Soundscapes
Treat all soundscapes as purchased for testing. Resets on toggle off.
Audio Debug Panel
Show floating audio diagnostics overlay.
Audio Audition
Cycles procedural soundscapes through default, minimum, midpoint, and maximum controls while logging route, loudness, controls, timing, and errors.
Progress: 0/- · Errors: 0
Developer
Developer Tools
Native IAP and optional account services are wired behind adapters with safe fallbacks so the app remains runnable before store products and backend credentials are provisioned.

Hear what your Mind has been missing…

The original free color noise generator. Procedural and guided soundscapes. Twenty-five million ears, one simple intuitive interface. Now rebuilt for your browser, your pocket, and every moment in between. Bring the noise with you...

25+ Million
Listeners
480+
User Reviews
4.7 / 5
Star Rating
2+ Million
SoundCloud Streams
SimplyNoise
White Noise
25%
Pink Noise
25%
Brown Noise
50%
Oscillation
Off
Binaural Beat
No binaural beat - 0 Hz
Sleep Timer
OFF
SimplyClassic
Paused

The Original Color Noise Generator

White Noise
Shape
Equal power across all frequencies
Best for
Masking sudden noises
Pink Noise
Shape
Power decays by 1/f per octave
Best for
Balanced, most natural
Brown Noise
Shape
Deep low-end, 1/f² decay
Best for
Sleep, tinnitus, focus

The Science of Color Noise...

For decades, clinicians have used broadband sound to treat insomnia, tinnitus, ADHD, and sensory overload. Here's what the research actually supports.

  • 01Sleep onset. Reduces the perceptible delta between ambient quiet and startle sounds. People fall asleep up to 38% faster in masked environments.
  • 02Tinnitus relief. Continuous broadband sound reduces the contrast between ringing and silence, offering short-term relief for 75% of sufferers.
  • 03Focus. Moderate-level pink noise has been shown to improve memory consolidation and working attention in adults.
  • 04Infants. Pediatric trials report a 15-dB white-noise floor can shorten time-to-sleep in newborns.
  • 05Calm Meditation. Steady broadband noise masks intrusive thoughts and environmental distractions, deepening mindfulness practice and extending the duration of sustained meditative states.
Studio still life
Testimonials & User Feedback:
You are a terrific resource for many of our patients. Thank you for making this available.
Bill Martin
Director · OHSU Tinnitus Clinic

Features & Functionality

01 · QUALITY

Clean Intuitive User Experience

Our high fidelity original content is produced and mixed by award winning Sound Designers.

02 · PROCEDURAL

Color Noise and Binaural Beats

Procedurally generated Soundscapes create a uniquely layered sound stage each time.

03 · CALM

Meditation and Calm

Soundscapes that links breathing programs to oscillation, layers color noise, and add binaural beats for deeper focus.

Take the quiet with you...

The full soundscape library, offline-first. Available on iOS, Android, and Web.

Simple, like our name...

Free
$0forever
The core SimplyNoise color noise experience. Always free and simple.
  • White, Pink, & Brown Noise
  • Oscillation Volume + EQ
  • Sleep Timer
  • AirPlay + Cast
  • Offline Mobile Apps
Basic
$1each
Procedurally generated audio soundscapes provide a new listening experience each time.
  • SimplyRain
  • SimplyFire
  • SimplyBeach
  • Zen Garden
  • Wind Chimes
Pro
$2each
Bespoke high fidelity guided soundscapes crafted by award winning Sound Designers.
  • SimplyMeditate
  • Binaural Beats
  • 60min. Thunderstorms
  • 60min. Winter Nights
  • 60min. Babbling Brooks
Best Deal
Max
$8one-time
Lifetime full access to all features and soundscapes including new updates and future content.
  • Procedural Soundscapes
  • Guided Soundscapes
  • Lifetime Updates
  • Listen from all platforms
  • Priority Support

Questions, answered...

Yes. SimplyNoise has been free since 2008 and always will be. No login, no ads, no tracking. Plus and Lifetime plans unlock mobile, soundscapes, and sleep stories.
White is flat across all frequencies. Pink decays by 1/f per octave — softer on the ears. Brown decays by 1/f² — deep, rumbling, like a distant waterfall.
Yes. We recommend keeping the volume at or below 50dB, and placing the speaker at least 2 meters away from the crib. Pink or brown are often gentler choices.
The web version generates noise directly in your browser — no internet needed after page load. The mobile app downloads soundscapes for full offline use.
Masking doesn't cure tinnitus, but many users find relief. We recommend consulting with an audiologist. The app includes tinnitus-specific masking frequencies.
Two Entrepreneurs from across the US who became friends online and joined forces after working at the biggest tech companies on Earth. We're independent, bootstrapped, and do this simply because we love empowering and helping people by providing real value to the world.
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© SimplyNoise 2026 · Reactor LLC
Version 4.0 · Made with love and care
White Noise
25%
Pink Noise
25%
Brown Noise
50%
Oscillation
Off
Binaural Beat
No binaural beat - 0 Hz
Sleep Timer
OFF
SimplyClassic
Paused