White Noise Machine
FreeAppwhite noise machine · white noise · 백색소음 · rain fire ocean sounds · focus sleep sounds
Sounds are generated in your browser — no files, works offline. Start at a low volume.
How to use
- 1
Pick a sound (rain, fire, ocean, and more) — it starts playing as soon as you tap.
- 2
Set the volume and, if you like, a sleep timer to stop automatically.
- 3
Leave it playing while you focus, sleep, or relax — the elapsed time is shown.
FAQ
Is this tool free?
Yes — it is completely free to use, with no account or sign-up required.
What is this tool?
This white noise machine plays soothing background sounds to help you focus, sleep, or relax. Choose from rain, a crackling fire, ocean waves, a fan, a pencil writing, or pure white, pink, and brown noise, then adjust the volume and watch the elapsed-time counter. Every sound is generated live in your browser with the Web Audio API — there are no audio files to download, it keeps working offline once the page has loaded, and nothing is ever sent to a server.
Which sounds can I play?
Rain, a crackling fire, ocean waves, a fan, pencil writing, and pure white, pink, and brown noise.
Does it work offline?
Yes. The sounds are generated in your browser with the Web Audio API, so once the page has loaded it keeps playing without an internet connection.