How the Pomodoro Technique works
The technique was developed in the late 1980s by Francesco Cirillo, named after the tomato-shaped kitchen timer he used as a student. The rules are simple: pick a task, work on only that task for 25 minutes without interruption, take a 5-minute break, and repeat. After four intervals, take a longer 15–30 minute break.
Why it works
Three reasons. First, the strict time-box reduces decision fatigue — you don't have to decide whether you're tired or want to switch tasks, you just commit to 25 more minutes. Second, the upcoming break makes focused work feel finite, which is psychologically much easier than "work until done". Third, the task log forces honest estimates: when you see a "30 minute" task actually took six Pomodoros, your future estimates calibrate fast.
Customising the intervals
25 / 5 / 15 is the classic, but the technique works at almost any ratio that respects the principle of focused work followed by short recovery. Programmers who need deep concentration often use 50 / 10 intervals; designers and writers who want frequent context switches sometimes prefer 15 / 3. Open Settings and adjust to whatever rhythm matches the work you're doing.
Privacy and data
Your tasks and Pomodoro counts are stored only in your browser's local storage on this device — nothing is sent to a server. Clearing browser data wipes them. The timer itself uses absolute timestamps so it stays accurate even when the browser throttles a background tab.