A neutral layer for noisy work
Background noise cannot make a chaotic day disappear, but it can make irregular sound less noticeable. This tool generates a continuous layer directly in your browser. Brown noise emphasizes lower frequencies, pink noise is gentler, and white noise is brighter.
Start at a low volume. The best setting should sit behind your work rather than compete with it. If the sound becomes the thing you are paying attention to, turn it down.
Private by design
No recording is downloaded or streamed. JavaScript creates a short audio buffer on your device and loops it while the page remains active. Your volume preference stays in local storage.
Use headphones responsibly and keep environmental awareness. Background sound should never hide alarms, traffic, people, or equipment that you need to hear.
Choose sound by texture, not promises
White noise spreads energy evenly and can sound bright, like steady air. Pink noise reduces some of that brightness and often feels softer. Brown noise emphasizes lower frequencies and has a deeper, rumbling texture. None is universally best for concentration. Try each at the same low volume for a few minutes and choose the one that makes irregular background sounds least interesting without becoming a new distraction. The right choice may also change with your room, speakers, and the kind of task in front of you.
The generator intentionally avoids playlists, voices, nature branding, and endless recommendation feeds. It creates a neutral sound layer and leaves the rest of the page still. If headphones become uncomfortable, your ears ring, or you need to keep track of nearby activity, stop playback. Quiet can be a useful work condition, but awareness and hearing comfort matter more than staying in a focus session. Take regular breaks from headphones and do not raise the level just because the room becomes louder.
Questions people ask
What is the difference between green, white, pink, and brown noise?
Green noise emphasizes a broad middle range, white noise is bright and even, pink noise is softer, and brown noise emphasizes deeper frequencies.
Does this page stream audio?
No. Colour noise is synthesized locally with the Web Audio API, and the natural sounds are short royalty-free clips loaded once and looped in your browser.
Which noise is best for focus?
Preference matters more than a universal answer. Start quietly with brown or pink noise, or try a natural sound.
Will it keep playing if I lock my phone?
Browser and phone power settings vary, so background playback is not guaranteed.
How loud should it be?
Keep it low enough that you can still hear important sounds around you.
Are the natural sounds free to use?
Yes. The ocean, rain, rainforest, and forest clips come from Mixkit under its free sound-effects license, which permits commercial use.
Does generating noise use streaming data?
Colour noise does not. The natural-sound clips download once (about 1 MB each) and then loop locally.