Custom Pomodoro Focus Timer & Cycle Tracker
Boost productivity with an interactive Pomodoro focus timer featuring customizable work/break intervals, audio chimes, cycle counter, and tab title clock.
The Official 4-Cycle Pomodoro Protocol
| Cycle Step | Duration | Core Productivity Rule |
|---|---|---|
| Pomodoro 1, 2, & 3 | 25 Mins | Monotasking only; write down distractions on paper and return to work |
| Short Breaks | 5 Mins | Step away from screens, drink water, walk, or perform neck stretches |
| 4th Pomodoro Completion | 25 Mins | Marks one full 100-minute productive work block cycle |
| Extended Long Break | 15 - 30 Mins | Complete cognitive reset; snack, short outdoor walk, or light reading |
⏱ Why the 25-Minute Constraint Eliminates Procrastination
Procrastination is rarely a time management flaw; it is an emotional resistance to starting a daunting, ambiguous project. Committing to just 25 minutes lowers cognitive friction to near zero. Once you begin, the psychological "Zeigarnik Effect" creates a natural urge to finish.
About this tool
How to use it
- Choose your Pomodoro interval preset (Classic 25/5, Deep Work 50/10, or Speed Sprint 15/3).
- Enter your target task intention into the task field to anchor mental focus.
- Click 'Start Focus Timer'; the background clock updates automatically in your browser tab title.
- When the timer expires, an audio chime plays signaling it is time for your 5-minute restorative break.
Why it matters
Francesco Cirillo developed the Pomodoro technique in the late 1980s using a tomato-shaped kitchen timer. Dividing cognitively demanding work into short, time-boxed intervals eliminates mental burnout, prevents attention drift, and overcomes task initiation friction.
When to use it
Use this focus timer when studying for exams, coding software, writing essays, processing emails, or working through intense creative deep work sessions.
Good to know
The audio alert chime uses the native HTML5 Web Audio API and produces clean tones without external MP3 files or network requests.
Common questions
What happens after 4 Pomodoro cycles?
After completing 4 consecutive 25-minute work blocks (100 minutes of pure focus), take an extended 15-to-30-minute long break to let your brain consolidate learned information.
What should I do if I get interrupted during a Pomodoro?
The Pomodoro rule states: an interval is indivisible. If an urgent interruption occurs, pause or reset the timer. For non-urgent thoughts (like an email or chore), write it down on a notepad and address it during the next 5-minute break.
Does the timer continue running if I switch tabs?
Yes. The timer updates the browser tab title in real-time so you can monitor remaining seconds without keeping the tab open on screen.
What is the best break activity?
Avoid checking social media or reading news during breaks, which causes secondary mental fatigue. Instead, drink water, stretch, look out a window 20 feet away to rest eye muscles, or walk around.