Project Summary
gedcom4j is an open-source, free-to-use Java library for reading (parsing) and writing genealogy data.
Most genealogy programs and tools can import and export their data to file in the GEDCOM file format. Using gedcom4j, you can write a Java program to load data from a GEDCOM file into a Java data structure for your examination and manipulation, and you can also save GEDCOM files out from the same data model, including data you created without having read a file first.
Please note that gedcom4j is not an application. It is a library (jar file) that can read, manipulate, and write genealogy data using the GEDCOM format in your own Java programs...including commercial, closed-source projects.
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In a Nutshell, gedcom4j...
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took an estimated 12 years of effort (COCOMO model)
starting with its first commit in April, 2009
ending with its most recent commit over 7 years ago
Quick Reference
MIT License
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These details are provided for information only. No information here is legal advice and should not be used as such.
Project Security
Vulnerabilities per Version ( last 10 releases )
There are no reported vulnerabilities
Project Vulnerability Report
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30 Day SummaryOct 2 2025 — Nov 1 2025
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12 Month SummaryNov 1 2024 — Nov 1 2025
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