ポモドーロタイマーとは?
無料のオンライン ポモドーロタイマー。25分作業/5分休憩のポモドーロ・テクニックで効率を向上。
The Pomodoro Technique is a time management method developed by Francesco Cirillo in the late 1980s. It uses focused work intervals separated by short breaks to maintain concentration and prevent burnout. Pomodoro Timer provides a fully configurable timer with work sessions, short and long breaks, desktop notifications, and weekly productivity statistics.
The default schedule follows the classic Pomodoro pattern: 25 minutes of focused work followed by 5 minutes of short break. After completing 4 work sessions (called a set), a longer break of 15 minutes is recommended. All durations are fully customizable to match your personal productivity rhythm.
During a work session, the timer counts down with a clear circular progress indicator. When time is up, a sound plays and a desktop notification is sent (if your browser supports notifications and you grant permission). The auto-start option begins the next session automatically, creating a seamless flow. Adjustable alarm volume lets you control the sound level.
The weekly stats view shows your completed sessions for each day of the week in a bar chart. This visual feedback helps you understand your productivity patterns — which days you were most focused, how many sessions you completed, and how your work rhythm varies across the week. All data is stored locally in your browser.