Free tool
Online timer
A free countdown timer with a loud alarm. Tap a preset or set hours, minutes and seconds, then leave this tab open — the countdown shows in the tab title while you work somewhere else.
Timer
05:00
How to use the timer
Tap a preset to start straight away, or type hours, minutes and seconds and press Start timer. While it runs you can pause, resume, add a minute, or reset. At zero it beeps until you press Stop, and the tab title flashes so you can find it among other tabs. Restart runs the same duration again — handy for intervals.
Keyboard: Space to start, pause and stop, R to reset.
What people use it for
- 25 minutes — a Pomodoro focus block, followed by a 5 minute break.
- 5 and 10 minutes — tea, eggs, a stand-up, a short break.
- 20 minutes — the classic power nap. For naps there are dedicated pages that also explain what each length does, like wake me up in 20 minutes and wake me up in 90 minutes.
- 45 and 60 minutes — study sessions, exams, laundry, parking.
Making sure it actually rings
Every browser timer shares three limits. Sound only works after you've clicked on the page, so start it with a click rather than trusting a page that loaded on its own. The tab has to stay open — other tabs are fine. And the computer has to stay awake: a closed lid or sleep mode silences every website. This timer asks the browser to keep the screen on while it runs, but it can't override a closed laptop.
Timer or alarm?
A timer counts a duration; an alarm rings at a clock time. For “in 20 minutes” use this page. For “at 6:30 tomorrow” use the online alarm clock, or open a time directly — 6:00 AM, 6:30 AM, 7:00 AM. And if you want to time something rather than count down, there's a stopwatch with laps.
Neither is a good way to wake up if you sleep through alarms. The Stop button is one click, and a half-asleep hand finds it easily. That's the problem WakeUpBroo exists for: an iPhone alarm with no snooze and no dismiss button, which stops only when you type a code from wakeupbroo.com/code on a screen across the room.
FAQ
Frequently asked questions
Is this online timer free?
Yes. No signup, no download and no ads — it's a free tool from the makers of the WakeUpBroo iPhone alarm app.
Will the timer keep running in another tab?
Yes. It's anchored to the real clock rather than counting ticks, so it stays accurate in a background tab, and the countdown shows in the tab title so you can check it without switching back. It does need this tab to stay open and the computer to stay awake.
Why didn't I hear the timer?
Browsers block sound until you've clicked something on the page, so always start the timer with a click (or the Space bar) rather than leaving a pre-filled page. Then check the volume with Test sound. If the computer went to sleep, no website can make a sound — that's the hard limit of every browser timer.
Can I add time while it's running?
Yes — press +1 min as many times as you like, whether it's running or paused. The progress bar adjusts to the new total.
Are there keyboard shortcuts?
Space starts, pauses and resumes the timer, and stops it when it rings. R resets it.
Does a timer on my iPhone go off in silent mode or Do Not Disturb?
Apple documents that Clock alarms ring through Silent mode and every Focus, and the Clock timer behaves the same way in practice. The usual reason a timer stays quiet is its sound being set to Stop Playing, or a low alarms-and-timers volume. The details are in our guide to whether timers go off on Do Not Disturb.
Recommended next
Keep reading
A timer ends a task. Mornings need more.
A browser timer stops with one click. WakeUpBroo's iPhone alarm has no snooze and no dismiss button — it stops only when you read a rotating code from this website on another device. Free to download, 7-day free trial.
Free to download on iPhone · Android in development