Pomodoro timer online

What is this tool?

Run a straightforward countdown for a work or study session. Setting a duration can help separate focused work from a break. The page provides a local timer rather than a synchronized calendar event or guaranteed background alarm.

How to use it

1. Read the input labels and limits below, then choose the operation that matches your task.
2. Enter a whole number of minutes within the displayed limits.
3. Start the countdown when your task is ready.
4. Pause or reset when needed, and keep the page available to see the remaining time.
5. Check the result against the worked example or original file before copying, downloading or using it elsewhere.

Worked example

A short session can be useful for one concrete task, such as reviewing a paragraph or organizing a folder. Pick a duration that fits the task rather than treating one preset length as a universal productivity rule.

Questions & limits

How it works

Choose a duration in minutes and press Start. Pause keeps the remaining time; Reset returns to the selected duration. The countdown uses a target timestamp instead of subtracting one second per tick.

A practical example

A 25-minute session is a common starting point. Adjust the time to match the task, and take a short break when you finish.

Know the limits

The timer runs in this tab and is lost on navigation or refresh. Sleeping devices and suspended browser tabs may delay the finish message. It is not suitable for safety-critical timing.

Documentation updated October 4, 2026.

Will the timer work while my device is asleep?

Browser background restrictions and device sleep can delay updates or alerts. Keep the page open, and use a device alarm for a time-critical reminder.

Will opening this timer save my work?

No. It only tracks a countdown. Save your document in its own application, and do not rely on the timer to preserve another page’s state.

Checking your result

Read the labels before entering a value, especially when switching an operation or unit. Start with a simple example whose answer you already know if you are unsure which mode to use. After changing an input, check that you are reading the new result rather than a value copied earlier. Invalid or incomplete inputs need correcting before the calculation can finish. For a form or deadline with specific rules, follow the destination’s requirements and use this page as a convenient calculation aid.