A big, visual countdown — pick a time, hit start, and the circle drains as the seconds tick away.
Tap a preset — 1, 3, 5, 10, 15 or 20 minutes — or type any minutes and seconds and hit Set. Press Start and the big ring begins to drain while the digits count down, so the time left is obvious at a glance from across a room. The ring turns amber as you near the end and red in the final ten seconds, then flashes and beeps when time's up. Pause and Start pick up where you left off; ↺ resets to the full time. Tap the ⛶ button to go fullscreen — perfect for a classroom projector, smartboard, or TV.
A shrinking circle does something plain digits can't: it shows time as a shape, so even people who aren't watching the numbers can feel how much is left. Teachers use exactly this to keep a class on task — research on visual timers in classrooms (and especially in special-education settings) finds they help students manage time and feel less anxious during timed work, because "ten minutes" stops being abstract and becomes something you can see emptying. The same trick works anywhere a soft deadline helps: it nudges without nagging.
Set a group-work timer so every team finishes together, time a quick-write or a transition between activities, or run a brain-break on the board. Beyond school it's a clean kitchen timer, a Pomodoro clock for focused study (try 25 minutes on, 5 off), a workout interval timer, or a "two more minutes" warning for screen time. Nothing to install, no sign-up, and it runs entirely in your browser. It's part of our free classroom tools — pair it with the Random Name Picker for a fair, focused classroom, and see our guide on picking students fairly.
Does the timer make a sound when it ends?
Yes — it beeps and the screen flashes when time is up, and on phones that support it the device also buzzes. The first time you press Start the page unlocks sound, so make sure your volume is on.
Can I use it on a classroom projector?
Absolutely. Tap the ⛶ button for fullscreen so the big circle and digits fill a smartboard, projector, or TV — readable from the back of the room.
Will it keep running if I switch tabs?
It keeps the correct time and catches up when you come back, since it counts to a fixed end-time rather than ticking in the background. For a live classroom display, keep the tab visible.