Noise Machine Online Free
This is a free online noise machine that plays continuous white, pink, and brown noise straight in your browser to mask distractions for sleep, focus, and study. Tap one button to start, switch between the three noise colors, and set a sleep timer. There are no ads, no account, and nothing to download — and because the sound is generated on your device, it even works offline.
Need to drown out a noisy room, a ticking clock, or a snoring partner right now?
Use the free Noise Machine →White, Pink, and Brown Noise — Three Profiles in One Tool
Most online generators give you a single sound. This one synthesises all three of the common noise colors so you can switch instantly and keep whichever masks the room best:
- White noise — a bright, even hiss with equal energy across all frequencies. Best for masking sharp, high-pitched sounds like a ticking clock or keyboard clatter.
- Pink noise — softer and more balanced, like steady rainfall. The highs are rolled back, so it is easier on the ears over a long session.
- Brown noise — a deep, soft, low-frequency rumble like a distant waterfall. The most soothing of the three for many people, and the default here.
Free Online Noise Machine — No Ads, No Account
Plenty of people end up playing a noise video on YouTube, only to be jolted awake by a mid-roll ad. This tool never does that. It is a noise generator online free of ads, sign-ups, and tracking — the audio is created mathematically in your browser, not streamed, so there is no buffering, no commercials, and no recording is ever uploaded. Once the page has loaded you can even put your phone in airplane mode and it keeps playing.
How to Use the Noise Generator
- Tap play — the big center button starts the sound, fading in smoothly so there is no speaker pop.
- Pick a color — switch between White, Pink, and Brown to find the sound that masks your room.
- Set the volume — the slider is tuned for fine control at low levels, so you can sit it just under the noise you are blocking.
- Add a sleep timer — open the timer and choose 15 minutes up to 8 hours; the audio fades out gently over the final minute.
- Go dark — tap Blackout to fill the screen pure black for a dark room, then tap anywhere to bring the controls back.
Brown Noise for Focus and ADHD
Brown noise has become a go-to focus aid, especially among people with ADHD, because its deep low rumble blankets distractions without the bright hiss of white noise. The research here is still mostly anecdotal rather than clinical, so think of it as a personal-comfort tool rather than a treatment: if the deep sound helps you drop into a task and stay there, it is doing its job. Tap Brown, set a comfortable level, and start a focus block — it is free to try and nothing installs.
White and Pink Noise Generator, Online and Free
Prefer a brighter sound? The white noise generator is a single tap away, useful for masking high-frequency sounds and for newborns who settle to a steady hiss. The pink noise generator sits between the two — full but soft, like rain — and is a popular choice for sleep and long study sessions. Because all three run from the same screen, you can compare them in seconds and stick with what works tonight.
Sleep Timer and OLED Blackout Mode
The sleep timer (Off, 15m, 30m, 1h, 2h, 4h, and 8h) fades the audio out over the last minute instead of cutting it off abruptly, so it will not jolt you awake as you drift off. Blackout mode fills the entire screen with pure black — ideal for OLED phones, where black pixels switch off entirely to save battery and remove every trace of glow in a dark bedroom. Tap anywhere on the black screen to bring the controls back.
Frequently Asked Questions
What is a white noise generator?
A white noise generator produces a steady, even sound that covers the full range of frequencies your ears can hear, like a soft hiss. It is used to mask sudden background sounds — a ticking clock, traffic, chatter, a snoring partner — so they fade into one constant wash. This tool generates the sound mathematically in your browser, so it never repeats and never needs a download.
Is white noise good for studying?
Many people find that a constant background sound helps them concentrate by masking unpredictable noises that would otherwise pull their attention. White noise is bright and even; a lot of students prefer pink or brown noise, which are softer and less fatiguing over a long study session. Try all three and keep whichever lets you stop noticing the room.
Does white noise help you sleep?
White, pink, and brown noise can help some people fall asleep by smoothing over the sudden sounds that cause you to wake — a creaking house, a passing car, a partner moving. The noise gives your ears one consistent thing to settle on. Pair the sleep timer with the blackout screen so the audio fades out gently after you have drifted off.
Is brown noise good for ADHD?
Brown noise has become popular with people who have ADHD as a focus aid, because its deep, low rumble masks distractions without the bright hiss of white noise. The evidence is still mostly anecdotal rather than clinical, so treat it as a personal-comfort tool: if the deep sound helps you settle into a task, use it. It costs nothing to try here.
What does brown noise sound like?
Brown noise is a deep, soft, low-frequency rumble — like a steady waterfall, heavy rain on a roof, or a distant jet engine. It has far more bass than white noise and almost none of the high hiss, which is why many people find it the most soothing of the three for focus and sleep. Tap Brown in the tool to hear it instantly.
Is brown noise safe?
Yes — brown noise is just sound, and listening at a comfortable volume is considered safe for general use. As with any audio, keep the level moderate, especially through headphones and overnight, to protect your hearing. The volume slider here is mapped for fine control at low levels so you can set it just loud enough to mask the room.
What is the difference between white, pink, and brown noise?
They differ in how energy is spread across frequencies. White noise is equal across all frequencies — bright and hissy. Pink noise rolls off the highs so it sounds balanced and natural, like steady rainfall. Brown noise rolls off the highs even more, leaving a deep, soft rumble. This tool generates all three, so you can switch between them instantly and pick what suits the moment.
Does this noise machine work offline?
Yes. The sound is synthesised in your browser, not streamed from a server, so once the page has loaded it keeps working with no internet connection. You can install it to your home screen as an app and run it on a plane, in a hotel, or anywhere with no signal — with no ads to interrupt your sleep or focus.
