Does this timer work when I switch tabs?

Yes. The countdown runs via JavaScript and continues in the background. The browser notification fires even when the tab is hidden, as long as you granted notification permission.

Why did I not receive a browser notification?

You need to click "Enable Notifications" before starting the timer. If you previously denied permission, reset it in your browser site settings and reload the page.

What is the maximum duration I can set?

You can enter up to 99 minutes and 59 seconds, giving a maximum session of just under 100 minutes.

Is any data sent to a server?

No. The timer runs entirely in your browser. Nothing is logged or transmitted.

Can I use this for the Pomodoro technique?

Absolutely. The default 25-minute duration matches the standard Pomodoro work interval. After each session, reset to 5 minutes for a short break.

Focus Timer

Name: Focus Timer
Availability: InStock
Author: Nham Vu

Set a countdown duration, press Start, and get a browser notification when your focus session ends.

Timer Settings

Duration

Minutes

Seconds

Quick Presets

25:00 Ready

Summary

Set a countdown duration, press Start, and get a browser notification when your focus session ends.

How it works

Set the number of minutes and seconds you want to count down.
Click "Start" to begin the countdown.
Click "Pause" at any time to freeze the timer; click "Resume" to continue.
Click "Reset" to return to your original duration.
When the timer reaches zero, an alarm beeps and a browser notification fires.

Use cases

Run a classic 25-minute Pomodoro focus block.
Time short breaks between work sessions.
Set a meeting countdown so you wrap up on time.
Use as a cooking or exercise interval timer.
Limit social-media browsing to a fixed number of minutes.
Practice timed writing sprints or study sessions.

Frequently Asked Questions

Last updated: 2026-06-09 · Reviewed by Nham Vu