Deep / warm / mellow

Brown noise generatorA deeper kind of quiet.

A low, steady rumble, made right in your browser. Start with brown noise on its own, or soften the edges with a little pink noise.

YOUR MIX · SYNTHESIZED SOUND

Brown noise

Low, warm, and gently rumbling.

55%

Pink noise

A balanced, softly textured wash.

0%

White noise

Bright, airy, and evenly spread.

0%
Start with your device volume low.
Take your soundscape with youDownload audio ↓

Download your mix as a WAV file

Make a fresh noise file using your current channel levels and master volume. This renders a new soundscape, rather than recording live playback. The stop timer does not set the file length.

5.3 MB · WAV · mono · 44.1 kHz · 16-bit

Generated on your device. No account, upload, or microphone needed.

Longer WAV files need more memory. Start with a short file on your phone. Changing the sliders after preparation does not change the saved file; prepare it again for a new mix.

Generated locally. No microphone access or audio uploads. On iPhone, if you hear nothing, turn off Silent Mode and check media volume. Playback may pause when your browser or device sleeps.

What does brown noise sound like?

Brown noise has a low, rumbling character. Compared with white noise, its higher frequencies are much quieter, so it can sound deeper and less hiss-like. The name comes from Brownian motion, rather than the color of the sound.

This generator creates a synthetic noise signal locally. It is not a recording of rain, thunder, or another natural environment.

How to use this brown noise generator

  1. Start with your device volume low. Brown noise is selected for you.
  2. Press Play my mix, then adjust the master volume to a comfortable level.
  3. Add a little pink noise if you want more texture, or white noise for a brighter edge.
  4. Choose a stop timer if you want a timed session. The countdown starts when playback begins.

Brown noise vs. pink and white noise

Choose by sound, rather than assuming one color is better for everyone. Brown noise favors lower frequencies most strongly. Pink noise has a more balanced texture, while white noise sounds brighter.

SoundCharacterStart here if you prefer
Brown noiseDeep and bass-heavyA low rumble
Pink noiseBalanced and softer at the topA gentler wash
White noiseBright and hiss-likeA crisp, airy texture

A few things to know

Is this a brown noise download?+

You can listen in the browser or open Download audio to prepare a WAV file. Choose 15 seconds, 1 minute, 5 minutes, or 10 minutes. Export uses your current channel levels and master volume.

Can I play brown noise overnight?+

You can leave the timer off, but mobile browsers, battery settings, and device sleep may interrupt playback. A stop timer works while the page remains able to run. Keep the volume comfortable.

Will brown noise help me concentrate or sleep?+

Preferences and responses vary. This tool is for personal enjoyment and background sound; it does not promise a sleep, focus, or health outcome.

All sound is synthesized locally. No microphone permission, account, or audio upload is required. These noise colors are background sounds, rather than recordings of ASMR triggers.

Three colors. Your own mix.

Find the texture you enjoy, at a level that feels comfortable.

Back to the generator ↗

About this little space

ASMRTools.com brings together free browser sound experiences and introductory information about physical ASMR tools.

This version uses no advertising or analytics scripts, requests no microphone access, and does not upload your audio. Your mixer settings may be stored on this device. Hosting providers can process connection information to deliver the website.

There are no affiliate links on this page. The tool illustrations are decorative, not product photographs or endorsements. Read our privacy notice, editorial policy, and affiliate disclosure.