Ambient Noise Mixer — White, pink and brown noise with a timer — OnePassApps

Mix white, pink, brown, rain-like and fan-like noise with a sleep timer, then download a WAV. Generated in your browser, no account.

Ambient Noise Mixer generates white, pink, brown and softer filtered noise in your browser. Set a level for each layer, choose a sleep timer and listen, or render a short WAV to keep. Audio is made on your device with Web Audio; there are no recordings, uploads or accounts.

What you can do

  • Mix five generated noise layers, each with its own level and mute, with a master volume and four starting mixes.
  • Set a sleep timer of 15, 30, 60 or 90 minutes or a custom length, with a smooth fade-out.
  • Download a mono WAV of 1 to 10 minutes. No audio files are used.

Limitations

  • Some phones and browsers pause audio when the screen locks or the tab is in the background. A custom timer runs from 1 to 480 minutes.
  • Downloads are WAV only, mono, 16-bit at 44.1 kHz and up to 10 minutes. Settings are not saved. It makes no health or sleep claims.

Is Ambient Noise Mixer free, and do I need an account?

Yes, it is free. Ambient Noise Mixer runs in your browser with no account or payment details, and it never uses OnePassApps credits.

Read the How to mix white, pink and brown noise with a timer guide

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Open Ambient Noise Mixer