Free Online White, Brown & Pink Noise Generator

Play continuous background noise directly in your browser. Choose white noise for sleep and relaxation, brown noise for focus and deep work, or soft pink noise for sleep and relaxation. Includes a built-in timer and optional fade out.

✓ No Signup ✓ Timer & Fade Out ✓ Privacy Friendly

Get NoiseTimer for Android

Take NoiseTimer with you with our lightweight Android app for white, pink, and brown noise.

Get it on Google Play

Choose Your Noise

Choose white, brown, or pink noise based on how you want to use it, then set your timer and start listening instantly.

White Noise

Sleep & Relaxation

A steady, consistent sound that helps mask background noise and create a calmer environment for sleep and relaxation.

White Noise for Sleep

Brown Noise

Focus & Deep Work

Deep, low-frequency noise that provides a consistent background for concentration, studying, coding, and focused work.

Brown Noise for Focus

Pink Noise

Sleep & Relaxation

A softer, balanced sound with less emphasis on higher frequencies, ideal for creating a gentle background for sleep and relaxation.

Pink Noise for Sleep

How NoiseTimer Works

NoiseTimer is a free online noise generator that creates white, brown, and pink noise in real time directly in your browser using the Web Audio API. Unlike websites that stream pre-recorded audio loops, each sound is generated locally on your device for instant playback and minimal bandwidth usage.

Frequently Asked Questions

Find quick answers to common questions about using our noise generators, timers, and audio fade-outs.


Is NoiseTimer free?

Yes. All noise generators are completely free to use.


Do I need to create an account?

No. NoiseTimer works instantly without registration or subscriptions.


Does NoiseTimer work on mobile?

Yes. NoiseTimer works on modern desktop and mobile browsers.


Are my settings or usage tracked?

No. NoiseTimer is designed to be privacy-friendly and does not require an account.


Can I use NoiseTimer offline?

Once the website has loaded, the generators run locally in your browser. An internet connection is only required to open the website.


What types of sounds are available?

NoiseTimer currently offers white, pink, and brown noise generators, with more sounds planned for future updates.


Can I set a sleep timer?

Yes. Every generator includes a sleep timer with an optional fade out, allowing the sound to stop automatically.


Do I need to install anything?

No. The noise generators run directly in your browser with no installation required. NoiseTimer also offers an optional Android app for users who prefer a dedicated mobile app.