EventTimerEventTimer.io

Free Online Timer

A fast, free timer that runs right in your browser. Countdown, count up, or set an alarm. Works on every device, no download or signup needed.

No signup  ·  No download  ·  Works on every device

Live Demo

04:58

This is the real timer engine

Millisecond precision·Works on all devices·Fullscreen display·Instant start

Simple Timer for Anything You Need to Time

Whether you are timing a meeting, a workout, a cooking recipe, or a study session, you need a timer that just works. EventTimer opens instantly in your browser, lets you type any duration, and starts counting down with one click. There is nothing to install and no account to create. It works on your phone, tablet, laptop, or desktop, and it keeps running even if you switch to another tab. When you need a timer right now, this is the fastest way to get one.

  • Starts instantly in any browser
  • Works on phones, tablets, and desktops
  • Keeps running in background tabs
  • No installation or signup required
05:00
5-minute default

Timer Modes for Every Situation

Not every timing task is the same. A countdown timer is perfect when you know how long something should take: set 25 minutes for a Pomodoro session, 30 minutes for a meeting, or 12 minutes for roasting vegetables. A stopwatch (count-up mode) is better when you want to measure how long something takes without setting a limit. And an alarm mode lets you set a specific clock time to be notified. EventTimer gives you all three in a single interface, so you never need to hunt for a different app depending on the task.

  • Countdown timer for deadlines
  • Stopwatch mode for elapsed time
  • Fullscreen display for visibility
  • Keyboard shortcuts for quick control
05:00
5-minute default

Share Your Timer with Anyone

Sometimes one person timing is not enough. When a whole team needs to see the same countdown, use the shared timer feature. Create a timer in the Event Manager, copy the viewer link, and send it to anyone. They open the link on their own device and see the exact same live countdown, synced in real time. This works for remote meetings, virtual classrooms, distributed teams, and live events. The controller stays with you, so you can pause, reset, or adjust without anyone else interfering.

  • Shared timer via link
  • Real-time sync across all devices
  • Separate controller and viewer modes
  • Works over any internet connection
05:00
5-minute default

Get started

Three steps, no signup

1

Open the timer

Visit eventtimer.io. The timer loads instantly in your browser, on any device.

2

Set your duration

Type any duration or choose a preset. Switch between countdown, count-up, or clock mode.

3

Go fullscreen and start

Press F for fullscreen, Space to start. Share the link if your team needs to see it.

Common questions

Is this online timer completely free?

Yes. Every feature, including fullscreen, themes, shared timers, and sound alerts, is free with no signup required.

Can I set a timer for any duration?

Yes. Type any number of hours, minutes, and seconds. You can set a timer for 10 seconds or 10 hours. There are no restrictions on duration.

Does the timer keep running if I switch tabs?

Yes. The timer continues running in the background. When you return to the tab, it shows the correct remaining time.

Can I use it as a stopwatch?

Yes. Switch to count-up mode and the timer starts from zero, tracking elapsed time. This is useful when you do not know in advance how long something will take.

Does the timer work on my phone?

Yes. EventTimer is fully responsive and works on iOS, Android, tablets, and desktops. The interface adapts to your screen size automatically.

Can I set an alarm for a specific time?

You can set a countdown that ends at a specific time by calculating the remaining minutes. The timer will alert you with a sound and visual flash when it reaches zero.

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