A timer with presets
Start with a common duration or enter an exact hour, minute, and second.
Keep time without
losing your place.
Set a countdown, time a lap, or choose a clock time for an alarm. Pick the sound, decide how long it should play, and keep the page readable from across the room.
Version 1.2.0 · Clear lap splits, faster timer adjustments, and steadier pause-and-resume progress. Your time settings stay in this browser.
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Choose your clock
Keep this tab open for sounds. Browsers can pause background tabs to save battery.
Your mode, timer length, alarm time, sound, and alert length are remembered. Reset saved settings returns them to Timer, 10 minutes, Clear bell, 8 seconds, and title flashing.
Three clocks, ten sounds, one tab
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Time that stays understandable.
An alert you can tune
Choose one of 10 original browser-generated sounds and let it play for 1 to 30 seconds. Preview and stop it before relying on it.
A stopwatch and alarm
Record stopwatch laps or choose a clock time and label. If the alarm time has passed, the tool schedules tomorrow.
Timer questions.
Will the alarm work if I close the tab?
No. Keep the tab open. A normal web page cannot guarantee an alarm after the browser or device is closed.
Why did the sound not play?
Some browsers block sound until you interact with the page. Use Preview sound once, or start a clock, to give the page permission. Also check device volume and silent mode.
How long can the alert play?
Choose 1 to 30 seconds. The setting applies to timer completion and time-of-day alarms. You can stop a preview immediately with Stop sound.
Does it keep running in the background?
The tool calculates from real timestamps instead of counting animation frames, so it catches up accurately when the tab wakes. Battery-saving settings can still delay the alert itself.
What does the page remember?
It remembers the selected mode, preferred timer duration, alarm time, label, sound, alert length, and title-flash choice on this device. It does not create an online schedule.