Stay still
Tap the time to change it
Pick a duration and press Start. You get three seconds to settle, then the screen goes dark and the page starts watching. Move the mouse, press a key, touch the screen, scroll, switch tabs or pick up your phone and the session ends right there.
That's the whole exercise: do nothing on purpose. If you're restless or have ADHD, the urge to check something, fidget or reach for your phone shows up fast. Each time it does and you don't act on it, you get a bit better at sitting with it. The page keeps you honest because it notices every move.
Start with 30 seconds or a minute. When you can finish one, go longer. Your best time and today's total are kept in this browser.
Questions
What counts as moving?
Moving the mouse or trackpad, pressing any key, touching or scrolling the screen, and leaving the tab or app. On a phone, the motion sensor also catches the phone being picked up or shaken. Gentle mode lets small bumps through. Strict mode doesn't.
Can I move my body?
On a laptop the page can only see the mouse, keyboard and screen, so the rule is on you. Sit back, hands off, eyes on the screen or closed. On a phone lying on your lap or a table, the motion sensor will notice if you shift around.
Why does this help with ADHD?
A lot of distraction is acting on an impulse before you notice it. Sitting still with a clear rule makes those impulses easy to see, and practicing not acting on them is a skill that grows. It's not a treatment. It's a short daily drill, like stretching for your attention.
How do I stop early?
Just move. Any key, click or touch ends the session and shows how long you lasted.
Why can't I see the time left?
Watching the numbers turns into its own fidget. The ring fills slowly so you know it's working, and a soft chime tells you when you're done.
Is it free?
Yes. No sign-up, no ads and nothing to install. Everything runs in your browser.