A 25 minute timer for focus
This is a free 25-minute timer that runs in your browser. Press Start and a big countdown fills the screen, with an alarm when the twenty-five minutes are up. No install, no sign-up — it works the same on phone, tablet and computer. Twenty-five minutes is the classic Pomodoro focus block: long enough to get real work done, short enough that concentration holds.
Turn it into a full Pomodoro cycle
Press "Add timer" to append a 5-minute break after the 25 minutes, then set the repeat count — and the page runs the whole work-break-work rhythm automatically instead of a single countdown. Because your setup is saved in the URL, you can bookmark your own Pomodoro configuration and reopen it in one tap. If you'd rather start from a ready-made version, the Pomodoro timer is preset with 25 + 5 on repeat.
How to use it
Press play to start the 25-minute countdown; press again to pause, or reset to start over. Assign one task to the block before you begin — "draft the intro", not "do the report" — and put your phone out of reach so the time actually protects your focus. When the block falls apart, let it end and start a clean one.
Timers by length
1 minute · 5 minutes · 10 minutes · 25 minutes · Pomodoro (25+5) · Study (50+10)
Need a different timer?
TimerTrain is built for running multiple timers in a row. Try the study timer (50 + 10), the interval timer, or build your own timer from scratch.