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Online Timer: Free Countdown with Alarm (2026)

Set hours, minutes and seconds — or start a preset with one click. The alarm rings even if the tab is in the background.

Set the time, press Start, and the alarm sounds when the countdown hits zero — even with the tab minimized. The most-used presets are 25 minutes (Pomodoro), 5 minutes (breaks), 45 seconds (HIIT intervals) and 60 minutes (exams). No account, no download, works on phone and desktop.

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How to use this timer

Pomodoro timer: the 25/5 method

The Pomodoro Technique alternates 25 minutes of focused work with 5-minute breaks; after four cycles you take a longer 15–30 minute break. Why it works:

A full Pomodoro session (4 × 25 + 3 × 5 + 15) is exactly 2 hours 10 minutes — two sessions fill a productive morning. Use the 25-minute preset above, or open the Pomodoro timer directly.

Workout and HIIT intervals

Common interval protocols to run with this timer:

ProtocolWorkRestRoundsTotal
Tabata20 s10 s84 min
Classic HIIT45 s15 s1010 min
EMOM60 s10–2010–20 min
Circuit90 s30 s612 min

Tip: turn the volume up before starting — mid-burpee nobody looks at the screen. If you need to measure elapsed time instead of a countdown, use the stopwatch.

Exam and study timer

Practicing under real time pressure is the single best exam preparation:

Set the timer visible on a second screen or phone; when it rings, pencils down — training the stop matters as much as the content.

Cooking timer

Phones lock, hands are wet, and kitchen timers vanish into drawers. A browser timer on the kitchen tablet solves it:

FoodTime
Soft-boiled egg6–7 min
Hard-boiled egg10–12 min
Al dente pasta8–10 min
Rice (absorption)18 min
Steeping green tea2–3 min

The alarm keeps ringing until you dismiss it — burnt rice becomes someone else's story.

Timer vs stopwatch vs countdown

Pick by direction and target: down-to-zero = timer, up-from-zero = stopwatch, down-to-a-date = countdown.

Frequently asked questions

How do I set an online timer?
Enter hours, minutes and seconds (or click a preset like Pomodoro 25 min), then press Start. The alarm sounds when the countdown reaches zero. No account or download needed.
Is this online timer free?
Yes, completely — no signup, no premium tier, and no tracking of your timer usage. Everything runs locally in your browser on any device.
Does the alarm play with the tab in the background?
Yes, the sound plays as long as your browser allows audio playback. The remaining time also shows in the tab title, visible from any window.
Does the timer work if my computer goes to sleep?
No timer web app survives full system sleep. The countdown resumes correctly on wake (it's based on the clock, not on ticks), but the alarm can't sound while the machine is asleep.
Can I use this as a Pomodoro timer?
Yes — use the 25-minute preset, then the 5-minute break preset. A classic cycle is four 25/5 rounds followed by a 15-minute long break: 2 h 10 min total.
Can I set a timer for a specific time of day, like 3 pm?
That's an alarm rather than a timer. Subtract the current time from the target (e.g. 47 minutes until 3 pm) and set that — or use the countdown for date/time targets.
Why doesn't the alarm sound on my phone?
Mobile browsers pause inactive tabs to save battery. Keep the tab in the foreground for countdowns over ~10 minutes, and make sure the phone isn't in silent mode.
What happens if I close the tab?
The timer stops. It runs entirely in your browser and doesn't save state. Leave the tab open for the duration you set.
Can I run multiple timers at once?
Open the timer page in multiple tabs — each runs independently.
How accurate is an online timer?
Within a few milliseconds. The countdown is computed from your device's clock rather than accumulated ticks, so it can't drift even on a busy machine.
Timer vs stopwatch vs countdown — what's the difference?
A timer counts down from a duration you set (e.g. 25 minutes). A stopwatch counts up from zero. A countdown counts down to a specific future date and time.

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