Neatbo.

Countdown timer

Set a countdown for the task in front of you.

Browser-local processingInputDurationOutputCountdown

Timer workspace

Tool input and files are processed in this browser without being uploaded.

Preparing the tool…

Before you start

Set a duration and keep a visible countdown beside your task. Pause or resume as needed; the page shows a finish notice when time runs out. Keep the tab open, since browser restrictions can delay the notice.

How to use this tool

  1. Set hours, minutes and seconds to a total greater than zero.
  2. Select Start. Pause and resume without losing the remaining time.
  3. Keep the page open for the finish notice. Pause before editing the duration; an edit starts a new countdown.

Supported inputs and limits

This countdown stays in the current page only. Switching tools, refreshing, or closing the page resets it.

Worked example

Example input

Set 0 hours, 1 minute and 30 seconds; then select Start.
Example options

Example output

The display starts at 00:01:30.000 and counts down to 00:00:00.000.

When something does not work

Enter a duration greater than zero, with minutes and seconds from 0 to 59. If the timer appears stuck, keep this page open and return to the tab; use Reset to start the current duration again.

Frequently asked questions

Will I get an alert if I close the tab?

No. The finish notice appears only while you stay on this page. Switching tools or closing it stops the timer. A background or sleeping browser can delay the notice, so use a system alarm for time-critical reminders.

Can I change the duration after starting?

Pause first, then edit hours, minutes or seconds. The changed duration starts a new countdown. Reset restores the current duration.

Documentation & further reading

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