About Time Tracker

Time Tracker is a personal time log that records work time and study time in the same way. There is no sign-up and nothing to install: start a timer right in the browser, and every record stays only in the browser you are using.

Three timers

The free timer is the basic stopwatch: pick an activity name and a category, then start, pause, resume and stop. Set optional target minutes and the progress is shown while you work. The Pomodoro timer moves through focus, short-break and long-break phases automatically, using the 25/5 or 50/10 presets or your own minutes and round count, and saves a history entry after each completed focus round. The work hours timer is available in Work mode: clock in, start and end breaks, then clock out. It counts only the time outside breaks and shows overtime beyond your default workday in the recent shifts table.

Work and Study modes

Work mode offers the Deep work, Meeting, Admin, Email and Coding categories; Study mode offers Class, Assignment, Review, Exam and Reading. In Study mode you can add your own subjects and give each subject a daily and weekly goal.

History and statistics

Completed sessions appear in History, where you can edit the title, note, start time and end time, or delete an entry. Stats shows today's and this week's work and study time against your daily and weekly goals, a weekly trend by weekday, and study time per subject.

Data stays in your browser

Records are never sent to a server, and there is no account, advertising or analytics. From Settings you can export a CSV, save a JSON backup file, and import that backup in another browser to restore your records. You can also choose whether to receive a browser notification when a Pomodoro phase ends. The Korean, English, Japanese and Traditional Chinese (Taiwan and Hong Kong) pages share the same records, so switching language keeps your history.