Pronto Arquivo
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Online Countdown Timer

Set the time, hit start and hear the alarm when it ends. The time left also shows in your browser tab.

  • Never leaves your device
  • No sign-up
05:00

Quick answer: To use the countdown timer, enter hours, minutes and seconds or tap a shortcut (like 5 or 25 minutes) and click Start. When time runs out, your browser plays an alarm and the screen turns red.

How to do it in 3 steps

  1. 1Set the time or use a shortcut.
  2. 2Click Start.
  3. 3Hear the alarm at the end.

Why use Pronto Arquivo

Audible alarm

Three beeps when time is up, no sound file needed.

Ready-made shortcuts

1, 3, 5, 10, 15, 25, 30 and 60 minutes.

Time in the tab

The time left appears in the tab title, handy while you work.

Full screen

Great for tests, meetings and presentations.

Guides

Pomodoro technique

Work for 25 minutes, then take a 5-minute break. Tap the 25 min shortcut and start.

Frequently asked questions

How do I set a countdown online?

Set the time, click Start and wait for the alarm.

Does the alarm play if the tab is in the background?

Yes, as long as your device's sound is on.

Can I pause it?

Yes. Pausing keeps the time remaining.

Is there a regular stopwatch?

Yes, in the Online Stopwatch tool.

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