Select any person, choose ancestors or descendants, and AncestorOS renders your family tree as a radial fan chart — an elegant alternative to the traditional pedigree view.
Toggle between an Ancestors view — which expands outward through parents, grandparents, and great-grandparents — and a Descendants view, which expands outward through children and grandchildren. AncestorOS calculates both automatically from your tree data. Switch between them at any time without leaving the fan chart screen.
The fan chart is not locked to a single person. Use the search field in the left panel to find and select any family member as the root of the chart. Focus on your great-grandmother to visualize her line, or select a distant cousin to explore a specific branch. The chart recalculates and re-renders instantly for whoever you select.
When your fan chart is ready, use the Export button to save it. Exported charts are useful for printed family histories, digital presentations, sharing with relatives who aren't in AncestorOS, or simply keeping as a visual record of your research. The export captures the full radial chart as rendered on screen.
No setup needed — the chart builds from your existing tree data.
Type a name in the left panel search field to find any person in your family tree. Select them to make them the root of the fan chart. You can change the root person at any time.
Toggle to the view you want — Ancestors to see the selected person's direct lineage expanding outward through parents and grandparents, or Descendants to see their children, grandchildren, and further generations expanding outward.
View the generation count and total people count in the left panel stats. When you're satisfied with the chart, use the Export button to save it for use in family histories, reports, or sharing with relatives.
A radial view of your family that's as useful for presentations as it is for research.
Toggle between two directions: expand back through ancestors or expand forward through descendants — both from the same root person.
Not locked to yourself. Search and select any family member as the chart root to focus on a specific branch or individual line.
AncestorOS calculates the chart from your existing tree data — no manual input required. Add more people to your tree and the fan chart reflects them automatically.
The left panel shows how many generations are in the chart and the total number of people included — at a glance for any root person you select.
A completely different perspective from the traditional top-down pedigree chart. The circular layout makes it easier to visualize how a family expands across generations.
Export the fan chart directly from the screen. Use it in printed family histories, digital presentations, or share it with relatives who want a visual summary of the family.
Free plan available. Build your tree and visualize it in minutes.