White Noise Generator
Generate white, pink, or brown ambient noise for focus, sleep, or masking sound.
Key features
Pick white, pink, or brown noise, adjust the volume, and press Play — useful for masking distracting background sound, helping you focus, or as a sleep aid.
Noise is synthesized locally in your browser using the Web Audio API. Nothing is streamed from a server, so it works offline once the page has loaded.
How to use
Pick a noise color
White, pink, and brown noise each have a different tonal balance.
Set the volume
Start low, especially with headphones.
Press Play
It plays continuously until you press Stop.
Frequently asked questions
What’s the difference between white, pink, and brown noise?
White noise has equal energy at every frequency, which can sound harsh or hissy. Pink noise reduces high frequencies for a softer, more balanced sound often compared to steady rainfall. Brown (or red) noise rolls off high frequencies even more, producing a deeper, rumbling sound often compared to a waterfall or strong wind.
Can I leave this playing in the background while I use other tabs?
Yes — audio keeps playing as long as this tab stays open, even if it’s not the active tab.
Is anything uploaded or streamed?
No. The noise is generated locally using the Web Audio API — nothing is streamed from a server, and no audio is ever sent anywhere.