45 Minute Timer
A free 45-minute countdown timer with a loud alarm, a dark fullscreen display, and a live tab-title countdown so you can check the time without switching tabs.
Other durations:
About the 45 minute timer
Use this 45-minute timer for a deep work session, a class period, or a 45-minute workout. Press Start and it counts down with a big, easy-to-read display, plays a built-in alarm when it hits zero, and updates the browser tab's title live — so you can work in another tab and still know exactly how much time is left. Tap the Fullscreen button for a large dark countdown that's easy to read from across a room.
Frequently asked questions
Is this 45 minute timer really free?
Yes — 100% free, no signup, no account, and no ads. Use it as many times as you like.
Will the 45 minute timer still count down if I switch tabs?
Yes. The countdown keeps running in the background and the remaining time is shown live in the browser tab's title, so you can check it without switching back.
Does it make a sound when the time is up?
Yes, a built-in alarm sound plays automatically when the timer reaches zero — you can mute it with the sound toggle above the timer.
Can I use it in fullscreen for a classroom or meeting?
Yes — click the Fullscreen button for a large, dark, easy-to-read countdown display, ideal for classrooms, workouts, or meetings.