Set a countdown in hours, minutes and seconds, or switch to the stopwatch when you need to measure elapsed time instead of a deadline. The timer measures real elapsed time rather than counting ticks, so it stays honest on a busy machine, and the full-screen view scales the digits to any phone, tablet or monitor so the whole room can read them.
The second tab is a stopwatch that counts up from zero with no end, in the same hours, minutes and seconds format. Use it to find out how long a task really takes, then set the countdown to a block that matches reality.
The completion cue is a 600-millisecond bell at 880 Hz generated in the browser, with a shorter tone when you start and a lower one when you pause, so you can tell the three states apart without looking at the screen. The bell button plays the same sound once so you can test your volume first.
No. The countdown, the stopwatch and the audio cues all run in the browser, there is no account and no signup, and nothing you type leaves the page. Once it has loaded, the timer keeps working even without a connection.
It measures the real time that has passed between display frames instead of assuming every callback arrives exactly one second apart, so the small delays a browser introduces never accumulate. That keeps it inside the one-to-two-second tolerance a Pomodoro block, a cooking timer or a meeting timer needs.
The count stays right, because the timer subtracts from the real elapsed time and shows the correct remaining value the moment you return to the tab. Browsers do stop painting hidden tabs, so the display and the chime may only update once the page is visible again — keep the tab in front if the sound is your alarm.
Yes. The full-screen button expands the timer to the whole screen with digits sized from the viewport, so nothing gets cropped on a projector or a phone held sideways. The controls fade out after three seconds of inactivity and come back on mouse movement, a tap or a keypress.
Expand the timer to the whole screen with digits scaled to the viewport, readable from across a room and safe on a projector.
A bell at 880 Hz tells you the block is over, and the test button lets you check the volume before you walk away.
Switch tabs to count upward from zero when the question is how long something took rather than how long is left.
A countdown timer with stopwatch mode, a completion chime and a full-screen display — free, no signup, nothing to install.