Family Tree Builder
Map every character relationship in your story world
A free online family tree maker built for writers, OC creators, and worldbuilders. Visualize dynasties, bloodlines, and character relationships. Use our template library to get started quickly.
Free · No signup required
What You Can Do with Family Tree Builder
- Start Instantly — Open the app and build your first tree as a guest. No download, installation, or signup required.
- Relationship Mapping — Smart auto-layout arranges characters by generation, keeping royal houses, dynasties, and found families readable.
- Character Profiles — Attach names, titles, bios, avatars, and notes to every person so your cast stays consistent while you write.
- Export Anywhere — Save your tree as JSON, JPG, PNG, SVG, or PDF to drop into wikis, story bibles, or shared documents.
- Copy for AI Tools — Copy any tree as Markdown, plain text, or JSON and paste it straight into your favorite AI assistant.
- Built for Fiction — Designed around stories, not genealogy records — perfect for fantasy houses, faction hierarchies, and OC lore.
How It Works
- Add your characters — Drop people onto the canvas and fill in names, titles, and bios as much or as little as you like.
- Connect the relationships — Link parents, partners, and children — the smart layout organizes generations automatically.
- Export and keep writing — Download an image or PDF, or copy the tree as Markdown to reference anywhere you write.
Free to Use, Right Now
- Guest mode — one tree with up to 50 characters
- Free account — up to 2 trees with online saving, 7-day history, JSON/JPG export and note/AI-ready copy text formats
- Pro — unlimited trees and characters, automatic online backups, PNG/SVG/PDF export, and collaboration features
More from the StoryLegend Suite
- Timeline Creator — Keep your story chronology airtight
- Writing Studio — Plan, write, and finish your story in one workspace