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Noise Generator - Online White Brown & Pink Noise Machine

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Noise Generator

White, Pink & Brown Noise Machine for Sleep, Focus & Relaxation

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What Is Color Noise?

Not all noise sounds the same. "Color" describes how energy is distributed across frequencies. White noise has equal power per Hz, sounding like radio static. Pink noise is deeper, with a 3 dB per octave roll‑off — common in nature (rain, wind). Brown noise (Red noise) drops even more, producing a deep, rumbling sound that many find calming for sleep or tinnitus relief.

Use the buttons above to switch between the three types and find your perfect background sound.

White noise contains all audible frequencies at equal intensity, much like the static from an old TV. It's widely used to mask background sounds, improve concentration, and help babies sleep.

Pink noise is deeper than white noise, with equal energy per octave. It sounds like steady rain or a waterfall. Studies suggest it may improve deep sleep and memory consolidation.

Brown (or Brownian) noise has even more low‑frequency emphasis, creating a deep roar similar to heavy ocean surf or thunder. Many listeners prefer it for tinnitus masking or deep relaxation.

Set your preferred noise type and volume to a comfortable level, then set the optional timer (e.g., 30–60 minutes) so it stops after you fall asleep. For best results, use external speakers or sleep headphones.

Listening at moderate volumes is safe. Prolonged exposure to high volumes (above 85 dB) can damage hearing. Keep the volume at a level where you can still comfortably hear a normal conversation.

Once the page is loaded, all processing happens locally in your browser using the Web Audio API. No internet connection is needed for playback. However, downloading the 30‑second file requires the page to be running.

Yes! Click the "Download 30s" button to save a high‑quality WAV file of the currently selected noise type. You can then use it in meditation apps, sleep tracks, or anywhere you like.

White and pink noise are popular for focus. White noise provides a consistent mask, while pink noise’s softer high‑end may be less fatiguing over long periods. Experiment to see which works for you.
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