GEDCOM Validator

Check a .ged file for errors, impossible dates, duplicates, and broken links — a tree health report that runs entirely in your browser.

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Over years of research, a family tree collects mistakes — a typo that turns a birth year into an impossible date, the same ancestor entered twice, a child linked to the wrong parents. This free validator reads your GEDCOM (.ged) file in your browser and produces a tree health report: every error, impossible date, duplicate, and broken link it can find, scored so you know how clean your data is.

Nothing is uploaded — the check runs entirely on your device. When you’re ready to fix what it finds, AncestorIQ imports the same file and helps merge duplicates and fill the gaps.

FAQs

What does the GEDCOM validator check for?+

It scans your file for structural problems — impossible or unreadable dates, a death before a birth, a child born before a parent, duplicate individuals, broken references, and missing names — and scores your tree's overall health.

Is my file uploaded to validate it?+

No. Validation runs entirely in your browser. Your GEDCOM data never leaves your device.

What can I do about the issues it finds?+

Fix them in your family-tree software, or import the file into AncestorIQ — its AI research assistant helps resolve duplicates, fill in missing dates, and enrich the record.

Start with one relative and see what comes back.

Add what you remember and AncestorIQ searches for the rest. Free to build your tree for as long as you like.

Start your tree, free

No credit card needed. Your tree stays yours.