Pomodoro Timer
A Pomodoro timer that repeats 25-minute focus and 5-minute break sessions, switching automatically all the way to a long break. It calculates from the actual clock, so it stays accurate even when you leave the tab, and an alert sounds at each switch.
Focus
Completed pomodoros 0
Today's focus record
0 sessions · 0 min
How to use
- Set the current task and focus/break times, then save frequently used combinations as presets.
- When you press "Start", focus begins and automatically moves to a break when the time is up.
- Turn on notifications and screen wake lock if needed. The timer works even without permission.
- Review today's completed sessions and focus time, and resume an interrupted timer after reloading.
Frequently asked questions
What is the Pomodoro Technique?
It's a time-management method that repeats 25 minutes of focus and a 5-minute break as one set. After four focus sessions, you take a longer break of about 15 minutes.
Can I change the times?
Yes. You can set the focus time, short break, long break, and the number of rounds until the long break as you like.
Is the time accurate even if I switch tabs?
Yes. It uses actual time and saves the running state in this browser, so it restores the remaining time after switching tabs or reloading. Notifications may be delayed if the operating system fully suspends the browser.
Practical example and verification criteria
Pomodoro Timer: First distinguish whether you need calculation, recording, timing, audio, or a screen check, then set units, intervals, repetitions, volume, and storage options for the real environment. Locally saved data may exist only in the current browser and device and can disappear when browser data is cleared, private mode is used, or the device changes.
Pomodoro Timer: For a quick check, start with 25:00 / 05:00 × 4 as a small input whose result relationship you can verify directly. Confirm that the input summary, units, and options match your intent before applying the tool to real values or a copy of the source; this reduces setup mistakes.
Pomodoro Timer: Before relying on a timer or alert, test sound, volume, screen lock, and background behavior over a short interval, and also register important schedules in an operating-system alarm. Reopen exported files to verify saved results. Audio and screen results depend on hearing, ambient light, and device settings and do not replace professional measurement or long-term storage.
Pomodoro Timer · Work record: For real work, record the input conditions, selected options, and result together. Do not assume the same state will remain after a refresh or device change. Preserve important results separately using copy, download, a screenshot, or another method the page supports, then reopen them in the target environment.
Pomodoro Timer · Error check: If an error or unexpected result appears, reduce the input, run again with default options, and then change one condition at a time. Recording error messages and boundary values helps distinguish format issues, unsupported cases, and browser resource limits, and prevents an empty result from being mistaken for success.
Pomodoro Timer · Scope of use: Check the page guidance for browser processing versus server lookup, storage location, and supported scope. Use sensitive source material or secrets only when strictly necessary. High-impact work such as legal, financial, or medical decisions or changes to an operational system requires current authoritative information and a separate verification process.