Noise Generator
White, pink and brown noise for focus, sleep and relaxation — shape the tone, add an ocean swell, set a timer.
Press Space to play or stop. Lower the tone for a softer, rounder sound; switch on Ocean swell for slow, wave-like movement.
Free online white, pink & brown noise generator
The Ajenza Noise Generator plays steady white, pink and brown noise entirely in your browser — useful for focus and concentration, sleep, relaxation, calming a baby, or masking background sound and tinnitus. White noise is bright and hissy, pink noise is balanced and softer, and brown noise is deep, like a distant waterfall. Shape the sound with the tone control, switch on a gentle ocean swell for slow wave-like movement, and set a sleep timer that fades the sound out. Everything is generated live with the Web Audio API — nothing is downloaded or streamed.
Is it free?
Yes — completely free, with no sign-up, download or watermark.
What is the difference between the colours?
White is bright and even; pink softens the highs for a balanced sound; brown softens them further for a deep rumble.
Do I need to install anything?
No. The noise is generated live in your browser with the Web Audio API.