Noise Generator
Generate white noise, pink noise, and brown noise for concentration, relaxation, and sleep. Includes timer functionality.
What is the Noise Generator?
The Noise Generator is a free online tool that produces white noise, pink noise, and brown noise directly in your browser. These ambient sounds can help with focus, sleep, meditation, tinnitus relief, and general relaxation by masking distracting sounds in your environment.
No app installation is required. Simply select a noise type, press play, and adjust the volume. A built-in timer lets you set automatic shutoff so the sound stops after your desired duration, making it especially useful at bedtime.
How It Works
The noise generator creates various noise types using Web Audio API. White noise has equal energy at all frequencies, generated by Math.random() × 2 - 1. Pink noise decreases in energy at higher frequencies, and brown noise decreases more steeply. Real-time audio samples are produced via AudioWorklet or ScriptProcessorNode.
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