White noise is one of the most effective tools for better sleep and deeper focus. By producing a consistent, broadband sound, it masks disruptive noises — traffic, snoring, noisy neighbors — that keep your brain alert. Studies show that white noise can reduce the time it takes to fall asleep by up to 40% and improve overall sleep quality.
This free browser-based player lets you listen to white noise, brown noise, and pink noise instantly — no download, no signup, no ads. Choose your preferred sound, set a sleep timer, and drift off. The audio is generated in real time using the Web Audio API, so it never loops or repeats in a noticeable pattern.
Whether you're working from a noisy coffee shop, putting a baby to sleep, or winding down after a long day, white noise creates a calm, predictable audio environment that helps your brain relax. For all-night playback with 10+ sounds and true background audio, try the Echo Sleep app.
White noise is generally considered safe for babies when used at a reasonable volume (below 50 dB, roughly the level of a quiet conversation). Place the sound source at least a few feet from the crib and avoid playing it at maximum volume. Many pediatric sleep specialists recommend white noise to help babies fall asleep faster and stay asleep longer.
White noise contains equal energy across all frequencies — it sounds like TV static or a hissing sound. Pink noise has more power in lower frequencies, sounding deeper and more balanced — think of steady rainfall. Brown noise is even deeper and richer, resembling a strong waterfall or distant thunder. Many people find brown noise the most soothing for sleep.
Yes! This player includes a built-in sleep timer with presets of 15 minutes, 30 minutes, 1 hour, and 2 hours. When the timer expires, the audio gently fades out over 10 seconds so you won't be jarred awake.
The audio will continue playing when the tab is in the background on most browsers. However, some mobile browsers may pause audio to save battery. For reliable all-night playback, we recommend the Echo Sleep app, which uses native audio services designed for continuous background playback.
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