Quick fullscreen
5 minTotal
5 min
A 5-minute fullscreen countdown for short transitions and quick starts.
Large browser countdown
Free Fullscreen Timer
Use a fullscreen timer for meetings, classes, events, livestreams, workshops, workouts, and shared displays. Start with a large countdown, then create an XTimer room when another device should control it.
Built for this job
Groups can read remaining time from across the room.
Hosts can use a simple browser tab before moving to a controlled setup.
Fullscreen mode creates a natural path into XTimer viewer displays.
Big room countdown
Ready
15:00
A 15-minute fullscreen timer for rooms, sessions, and shared screens.
Timer presets
Controls
Create controlled roomUse this setup in XTimer
Need a controller link, viewer display, or shared room?
Keep this simple timer for quick work. Move into an XTimer room when one person controls the clock and another screen shows it to a speaker, team, class, or audience.
Presets that match real work
Start from a timer people already understand.
Each preset has a clear use case, duration, and workflow. That makes the page useful for search visitors immediately, and gives professional users a natural path into XTimer rooms when they need separate controller and viewer devices.
Big room countdown
15 minTotal
15 min
A 15-minute fullscreen timer for rooms, sessions, and shared screens.
Long session
1 hourTotal
1 hour
A 60-minute fullscreen timer for classes, workshops, and talks.
Professional setup
Use the simple timer first, then graduate to controlled timing.
Test fullscreen mode before putting the timer on a projector or room display.
Use high contrast when the timer will be seen from the back of a room.
Keep the browser zoom consistent across display devices.
Use an XTimer room when the display device should not be touched during the session.
Frequently asked questions
What is a fullscreen timer?
A fullscreen timer is a large browser countdown designed for shared screens, projectors, meeting rooms, classrooms, livestreams, and event displays.
Can I show this timer on a projector?
Yes. Open the timer, use fullscreen mode, and put the browser on the projector or display.
How do I control a fullscreen timer from another device?
Create an XTimer room when you need a separate controller device and a viewer display.