Family Tree Analyzer

Analyse, explore and improve your family tree — spot errors, research census records, and visualise where your ancestors lived and moved over time.

⬇ Get the Windows App — Free 🌐 Try it in Your Browser

Windows Desktop App

The full-featured Windows app is free from the Microsoft Store and updates automatically. Requires Windows 10 (1809 or later) with .NET 10.

If you have trouble with the Windows Store, or need to run on an older Windows version, a standalone installer is also available.

Features

People & Records

  • Individual, Family, Surnames, Occupations, Facts and Sources lists — double-click any entry to drill into full details
  • View all facts for any individual, including alternate facts and source citations

Data Quality

  • Data Errors — events before birth, after death, unlikely ages, duplicate facts, missing data, and more
  • Loose Births & Deaths — suggests plausible date ranges based on family evidence
  • Duplicate detection with adjustable similarity scoring

Census Research

  • Colour Census report — see at a glance who you have (and haven’t) found on each census year
  • Colour BMD report — date precision for births, marriages and deaths across your whole tree
  • One-click searching on Ancestry, FindMyPast, FreeCen, FamilySearch and ScotlandsPeople
  • Lost Cousins integration — upload your census matches directly to Lost Cousins

Maps & Places

  • View ancestors on modern maps, historic Ordnance Survey maps, and aerial imagery
  • Timeline map — watch your family move across the country through the years
  • Lifeline map — one person’s journey through their life
  • Built-in OS Gazetteer and Google Geocoding support for finding locations

Reports

  • Treetops — the furthest-back ancestors on every line
  • World Wars — men of likely fighting age in WWI and WWII, with links to the Lives of the First World War
  • Research Suggestions, custom colour reports, and much more

Contains Ordnance Survey data © Crown copyright and database right 2013-2026

Also Available as a Web App

No installation needed — upload your GEDCOM at app.ftanalyzer.com and analyse your tree instantly in any browser, on any device.

Highlights:

  • Tree Health score (A–F grading across 10 categories) with a personalised Improvement Plan
  • Colour Census & BMD reports with one-click searching on Ancestry, FindMyPast, FamilySearch, FreeCen and ScotlandsPeople
  • Interactive maps — timeline, lifelines, and historic Ordnance Survey maps
  • Data Errors, Duplicates, Loose Births & Deaths, World Wars, and On This Day reports
  • Privacy first — your data stays in your browser by default; optional cloud sync with a free Google sign-in

Note: The web app has a 50 MB GEDCOM file limit. For larger trees or Lost Cousins integration, use the Windows desktop app above.

Guides & Documentation

Support & Community

Privacy Policy