Free Fullscreen Countdown Timer

Live Demo

This is the real timer engine

Big Timer Display for Presentations & Stage

When you're on stage or presenting to a room of hundreds, squinting at a tiny clock is not an option. EventTimer's fullscreen mode fills the entire display, laptop, external monitor, or projector, with oversized digits that are readable from 30 meters away. The automatic text-scaling algorithm adjusts font size to the viewport so you always get the maximum readability. Pair it with color-coded wrap-up warnings (yellow at 60 s, red at 30 s) and your speakers will always know exactly where they stand.

• Auto-scaling digits for any screen resolution
• Works on projectors, TVs, and confidence monitors
• Color-coded time warnings
• One-click fullscreen with F key shortcut

Onscreen Timer for Gyms & Fitness

Mount a tablet or connect a laptop to your gym's TV and you have a professional interval timer that the whole class can see. Set work and rest periods, link timers in sequence, and let them auto-advance so you can focus on coaching. The fullscreen display keeps things simple, just the countdown, no distractions. Choose from countdown, count-up, or clock modes depending on your workout style.

• Sequential timer linking for interval training
• Count-up mode for open-ended exercises
• Distraction-free display
• Works on smart TVs via browser

Show Timer for Live Events & Broadcasting

For live-event producers and broadcast directors, a reliable show timer is non-negotiable. EventTimer gives you a clean, fullscreen countdown that you can remote-control from a separate device. Put the timer on the confidence monitor, hand the control page to your stage manager, and everyone stays in sync. No proprietary hardware, no expensive software licenses, just open a browser tab and go.

• Remote control from a second device
• Viewer link for confidence monitors
• No proprietary hardware needed
• Real-time sync across all connected screens

Open the timer

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

Set your duration

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

Go fullscreen and start

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

More tools

• Free Online Countdown Timer
• Free Presentation Timer & Talk Timer
• Free Gym Timer & Fitness Interval Timer
• Free Classroom Timer & Visual Timer

Guides

• Free Presentation Countdown Timer Guide
• Conference Timer Guide
• HIIT Timer Intervals Guide

Quick-start presets

• 7-Minute Speech Timer
• 3-Minute Pitch Timer
• 60-Minute Exam Timer