Full-Screen Timer
Fullscreen tool for display testing. Works in-browser, no signup.
05:00
Perfect for classroom timers, workout intervals, meeting time boxes, or Pomodoro sessions. Big red flash when time is up. Press Esc to exit fullscreen.
About this tool
Enter minutes, hit Start — the timer takes over your screen with digits big enough to see across a room. The screen flashes red when time is up. Perfect for classroom activities, workout intervals, Pomodoro sessions, cooking, meeting time-boxes, or presentation Q&A limits. Press Escape to exit fullscreen.