radialtimers.com
This timer draws 10 seconds as 20 concentric rings; one empties every 0.5 seconds, so a glance shows how far along you are without reading a digit. It chimes at zero, keeps counting in a background tab, runs fullscreen, and exports as a free MP4 video. Handy for a boxing ten count, a single-leg balance test, or a rocket launch countdown.
Ten seconds is the shortest span most people ever bother to time, and it is almost always a count rather than a wait. A boxing referee counts a downed fighter out over ten. A launch director counts a rocket down from ten. A kid with their face against a tree counts to ten before shouting ready or not. Each of those is easier with the numbers taken off your hands, which is what this page does.
On the dial, ten seconds is fast. A ring falls every half second, so the whole face is visibly in motion and the last few rings go in a blink. Nobody reads digits at this speed; you watch the shape shrink and act on the chime.
Ten seconds is often one step of something longer. Start the timer again from the card when the chime sounds, or open a second dial beside it for the next interval. For a work-and-rest pattern where ten is the rest, the Tabata page runs the 20/10 split on its own and chimes at every change, which beats restarting by hand.
Short rests between hard efforts usually want more: try 15 seconds or 30 seconds. A proper hand wash is 20 seconds. Anything you can hold for longer than ten, from a plank to a stretch, belongs on a longer dial. Every length the site offers is listed on the timers page, and any dial takes a custom number if yours is not there.
0.5 seconds. The dial always has 20 rings, and this timer runs 10 seconds.
Yes. The nearest page is the 15 second timer, and the custom field on any dial takes an exact length.
Add it as a browser source in OBS; the background stays transparent. Change t for any length.
A radial timer is a free online countdown timer you set in one click: pick a length, press Start, and an alarm sounds at zero. Run several timers at once, take one fullscreen, or pop one out picture-in-picture to float over other apps. Every timer keeps counting in a background tab, and any timer exports as a video. No download, no sign-up.
Its dial draws the countdown as 20 concentric rings, one for each twentieth of the duration. Rings empty one by one, outermost first, so a glance shows how far along you are without reading a digit.
Yes. The countdown follows the clock, so it stays on time while you work in another tab and still chimes at zero. The picture-in-picture popout keeps a small dial in view the whole way.
Yes. Any timer exports as an MP4 or a transparent WebM of the whole countdown, up to 4K and 60 fps, in 16:9, vertical, or square.
Yes. In OBS, add a browser source pointing at radialtimers.com/overlay?t=25m and a transparent dial counts down over your scene. Change t for any length, like 90s or 3h.
As many as you need. Each timer gets its own dial and runs on its own, which suits interval workouts, several dishes on the stove, or a room of activity stations.