EventTimerEventTimer.io

Free Online Countdown Timer

A fast, free countdown timer that runs in your browser. Set any duration, go fullscreen, and share with your team. No downloads, no signup required.

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

Countdown Timer for Presentations & Meetings

Keep every speaker on time and every meeting on schedule. EventTimer's online countdown timer displays large, readable digits that work on any screen, from a laptop on a desk to a projector in a conference hall. Set your duration, press start, and focus on delivering your message instead of watching the clock. The fullscreen mode fills the entire display with the countdown, and color-coded warnings let the presenter know when time is running low without interrupting the flow.

  • Fullscreen display for any screen size
  • Color warnings at 60 s and 30 s remaining
  • Keyboard shortcuts for instant control
  • Share a live link so the whole room sees the same clock
05:00
5-minute default

Countdown Clock for Events & Live Shows

Whether you're producing a conference, running a hackathon, or coordinating a live broadcast, a reliable countdown clock is the backbone of your run-of-show. EventTimer lets you create multiple timers, assign them to sessions, and switch between them in real time. The audience-facing display stays clean and distraction-free, while you manage everything from a separate controller screen. No more clunky spreadsheets, just drag, drop, and go live.

  • Multiple timers per event
  • Controller + viewer separation
  • Real-time synchronization across devices
  • Works on phones, tablets, and desktops
05:00
5-minute default

Countdown Timer App. No Download Required

Forget the app store. EventTimer runs entirely in your browser, which means zero installation, zero updates, and instant access from any device. Bookmark it, share the link, or add it to your home screen for one-tap access. Because it's a progressive web app, it even works with spotty connectivity once the initial page has loaded. It's the countdown timer application that's always ready when you are.

  • No app download needed
  • Works on Chrome, Firefox, Safari, Edge
  • Add to home screen for instant access
  • Reliable even on spotty Wi-Fi
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 countdown timer really free?

Yes, 100 % free with no hidden costs and no subscription. You can use it as many times as you want for any purpose, personal, educational, or commercial.

Can I use this countdown timer fullscreen on a projector?

Absolutely. Click the fullscreen button (or press F on your keyboard) to fill the entire screen. The digits automatically scale to stay readable from the back of the room.

How do I share the countdown clock with others?

Create a shared timer in the Event Manager, then copy the viewer link. Anyone with the link sees the same live countdown, perfect for remote teams, virtual events, or in-room displays.

Does the countdown timer work on mobile phones?

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

Can I customize the countdown timer colors and themes?

Yes. Choose from multiple professional themes, or set custom colors to match your brand. Dark mode, light mode, and high-contrast options are all available.

What happens when the countdown reaches zero?

The timer flashes and can play an optional sound alert. You can also set it to automatically start counting up so you can see how far over time a session has gone.

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