What Is a GEDCOM File? Beginner Guide to Import and Export
If you have spent any time exploring family tree tools, you have probably seen the word "GEDCOM" and wondered: what exactly is this file, and do I need it?
Short answer: yes, GEDCOM matters.
The core data entities in GEDCOM are people, relationships, life events, and source-linked notes.
A GEDCOM file is the closest thing genealogy has to a universal language. It lets you move your family tree data between platforms so you are not locked into one tool forever. If you are serious about preserving your research, understanding GEDCOM is one of the most useful skills you can learn.
In this guide, we will cover what GEDCOM means, what it includes, what it does not include, and how to import/export it safely.
What Is a GEDCOM File?
GEDCOM stands for GEnealogical Data COMmunication. It is a standardized text format used to store and transfer family history data.
Think of it like a spreadsheet for genealogy:
- It stores people, relationships, and life events.
- It can be exported from one genealogy app and imported into another.
- It helps you avoid rebuilding your tree from scratch every time you switch tools.
Most GEDCOM files end in '.ged'.
Why GEDCOM Is Important
Without GEDCOM support, your tree can become trapped inside a single app.
With GEDCOM, you can:
- Own your data instead of depending on one vendor forever
- Migrate platforms when you outgrow a tool
- Back up your research in a widely supported format
- Share research with relatives who use different software
If you are comparing family tree builders, GEDCOM import/export should be non-negotiable. We highlight this in our tool comparison post: Top 5 Free Family Tree Builder Apps in 2026.
What Information a GEDCOM File Usually Includes
A standard GEDCOM export usually contains:
- Names (including maiden names and variants)
- Birth, marriage, and death dates
- Locations
- Parent-child and spouse relationships
- Notes and source citations (depending on platform)
This is the structural core of your family tree.
What a GEDCOM File May Not Include
This is where beginners get surprised.
GEDCOM often does not reliably include:
- Photo files
- Document attachments (PDFs, scans)
- Custom fields specific to one app
- Visual layout and design settings
In other words, GEDCOM is great for data portability, but not always perfect for media portability. Before migrating, check how your current tool handles photos and files.
When You Should Export a GEDCOM
Export your GEDCOM when:
- You want to switch to a different family tree platform
- You want an offline backup of your research
- You are sharing your tree with a researcher or relative
- You want to test a new app without starting over
Best practice: export a fresh GEDCOM every time you complete a major research batch.
How to Export a GEDCOM File (General Steps)
Each platform is a little different, but the workflow is usually similar:
- Open your current family tree tool.
- Go to settings, tools, or export.
- Choose Export GEDCOM.
- Download the '.ged' file.
- Save it in a clearly named backup folder.
Use a filename that includes the date, such as:
'family-tree-export-2026-03-31.ged'
This makes version tracking much easier later.
How to Import a GEDCOM File into a New Platform
Importing is typically just as straightforward:
- Open your destination platform.
- Find Import or Upload GEDCOM.
- Select your '.ged' file.
- Map fields if prompted.
- Review the imported tree for accuracy.
After import, spot-check these areas first:
- Parent-child links
- Spouse connections
- Date formatting
- Place names
- Duplicate people
Small cleanup is normal after any migration.
Common GEDCOM Import Problems (And Fixes)
1. Duplicate People After Import
Some platforms do not perfectly merge similar records.
Fix:
- Use merge tools to combine duplicates.
- Standardize naming conventions before export.
2. Missing Photos or Documents
This is one of the most common issues and often expected.
Fix:
- Re-upload media files manually.
- Keep your media archive organized in folders by family branch.
3. Broken Special Characters
Names with accents or non-Latin scripts can sometimes import incorrectly if encoding settings differ.
Fix:
- Confirm UTF-8 support in both tools.
- Spot-check surnames in languages like Armenian, Arabic, or Cyrillic transliterations.
4. Custom Events Not Mapping Correctly
Some apps use unique fields for military service, immigration, or religion.
Fix:
- Preserve details in notes when possible.
- Recreate critical custom fields in the new platform.
GEDCOM Best Practices for Beginners
To avoid painful migrations later, use this checklist from day one:
- Export regular GEDCOM backups
- Keep a separate media folder for photos and scans
- Standardize date formats and place names
- Add source citations as you research
- Test imports in a sandbox tree before full migration
If you are still building your first tree, start with our beginner guide to building a family tree online.
Is GEDCOM Still Worth Using in 2026?
Yes. Even with modern genealogy platforms, GEDCOM remains the standard bridge format across tools.
It is not perfect. It can be limited for media-rich content and advanced custom fields. But for core genealogy data, it is still the most practical and widely supported option.
If long-term ownership of your family history matters to you, GEDCOM is essential.
Final Thoughts
A family tree is not just data. It is memory, identity, and legacy. Using GEDCOM helps protect that legacy by making your work portable and future-proof.
Do not wait until you need to migrate urgently. Export a backup now, verify it, and keep your research under your control.
Related Guides
- Start a family tree online step by step
- Compare the top free family tree builders in 2026
- Research family history for free with public records
- Use DNA matches to extend your family tree
Ready to build on a platform with GEDCOM support from day one? Start your free Lineage tree, import your existing data, and keep full ownership of your family history.