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Privacy: All audio and speech processing runs locally in your browser. Audio data is never uploaded to any server.
🔊 Choose a sound
🌨️White noise
🎀Pink noise
🌰Brown noise
🔵Blue noise
🟣Violet noise
🌫️Gray noise
🌧️Rain
🌀Fan
🌊Waves
💧Stream
🔥Campfire
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Frequently Asked Questions
Which sounds are available?
Six noise colors — white, pink, brown, blue, purple, and gray — plus rain, fan, ocean, stream, and campfire, for 11 sound sources you can switch between anytime.
Are the sounds generated locally?
Yes. All sounds are synthesized in real time with the Web Audio API — no audio files to download.
Can I shape the sound?
Volume, low-frequency gain, and high-frequency gain are adjustable, with low-pass, high-pass, and band-pass filters and cutoff settings to shape the tone as needed.
What is it best for?
Sleep aid, meditation, focused work, or masking ambient noise.