# Free genealogy tools

Small tools for everyday genealogy problems. They are free, need no account, and run in your browser, so files and dates entered into them are never uploaded.

- [GEDCOM checker and converter](https://kleiobase.com/tools/gedcom-checker): Check a GEDCOM family tree file for errors and convert it between GEDCOM 5.5.1 and 7.0, privately in your browser.
- [Relationship calculator](https://kleiobase.com/tools/relationship-calculator): Work out how two relatives are related, from second cousins to cousins several times removed, and how much DNA they should share.
- [Calendar converter](https://kleiobase.com/tools/calendar-converter): Convert dates between the Gregorian, Julian, Hebrew and French Republican calendars, and read Old Style double dates.
- [Birth date calculator](https://kleiobase.com/tools/birth-date-calculator): Calculate a birth date from a date of death and an age at death, such as the age carved on a gravestone.

Canonical: https://kleiobase.com/tools