1. Choose a duration
Enter hours, minutes, seconds or tap a preset.
Browser timer
25 Minute Timer
One Pomodoro session — 25 minutes, already set. Want repeats? Use study-cycle mode with 25/5.
Local processingYour input never leaves your device.
00:00:00
Choose a duration and press Start.
Embed this timer on your site
Copy the code below to place a 25-minute timer on a page that allows HTML embeds. Change m=25 to set another duration in minutes.
What it does
An online timer is a free browser-based timer that counts down any hours, minutes, and seconds you set, then plays an alarm when time is up. It needs no install and no signup, includes one-tap presets from 1 minute to 1 hour with a 25-minute Pomodoro preset, and shows the remaining time in the browser tab title.
How to use
2. Start
Press start to begin the countdown. It keeps running as long as the tab stays open.
3. Alarm
An alarm sounds and the screen flashes when the timer reaches zero. Make sure your device isn't muted if you want to hear the alarm.
Limitations
The timer runs in your browser tab — closing the tab stops it. Switching tabs is fine, but the tab must stay open. Make sure your device is not muted if you want to hear the alarm.
FAQ
Do I need an account?
No. It runs right in your browser — no install, no signup.
Can I switch tabs?
Yes. The countdown continues when you switch tabs, as long as the timer tab remains open.
Can I use it for Pomodoro?
The 25-minute preset matches one Pomodoro session.