Age Tracker

Save the birthdays of family, friends or students and always see their exact age, who has a birthday coming up and the next milestone.

Birthdays in the next 30 days

Backup and calendar

Your list is saved only in this browser on this device. Export a backup to move it to another phone or computer, or add every birthday to Google Calendar, Apple Calendar or Outlook as a yearly event.

What the age tracker does

The age tracker keeps a list of people and their dates of birth and works out everything else for you each time you open it. For every person you see their exact age in years, months and days, how many days they have lived, how many days remain until their next birthday and how old they will turn. The list can be sorted by next birthday, name or age, and searched by name or group.

Your data stays on your device

There is no sign-up. Names and birthdays are stored only in your own browser, using its local storage, and are never sent to our server. The flip side is that clearing your browser data removes the list, and it does not sync between devices by itself. Use the Export backup button to save a copy, then Import backup on another device to bring the same list across.

Who it is useful for

• Class representatives and course reps keeping track of classmates' birthdays.
• Teachers and school administrators who need pupils' ages for records or class placement.
• Parents tracking the ages of their children for school entry and exams.
• Anyone who wants a private birthday reminder list for family and friends.

Milestones and the live age counter

Besides birthdays, the tracker shows each person's next day-count milestone, such as 8,000 or 10,000 days old, which makes a fun reason to celebrate. Press Live age on anyone to watch their age tick upward in years and seconds. Because only the date of birth is saved, the live count starts from midnight on the day they were born.

Birthday calendar

The Download birthday calendar button creates a standard calendar file with one yearly event per person. Open it with Google Calendar, Apple Calendar or Outlook and every birthday repeats automatically each year, with reminders handled by your calendar app. People born on 29 February get their event on the last day of February in common years.

Need a single age instead? Use the Age Calculator to find an exact age on any date or check an age limit. You can also plan exams with the Study Planner.