How to Generate White Noise Online Free — Create Focus and Sleep Audio in Your Browser
The Difference Between White, Pink, and Brown Noise
White noise has equal energy across all frequencies — a flat spectral density. It sounds like static. Pink noise reduces energy at higher frequencies, producing a more balanced, less harsh sound often described as gentle rain. Brown noise (also called red noise) reduces even more at higher frequencies, producing a deep, rumbling bass-heavy sound.
How to Use Noise Generator
Open Noise Generator and click the play button for the noise type you want. Adjust the volume with the slider. Use the sleep timer to auto-stop after a set duration.
Which Noise Is Best for Focus vs Sleep?
For focus in a noisy office: white or pink noise masks background conversation effectively. For sleep: brown noise or ambient sounds (rain, ocean) are more commonly reported as effective. Personal preference matters significantly — experiment with each type.
Frequently Asked Questions
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Open Noise Generator — white, pink, brown, rain, ocean, and more.
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