GEDmatch Information

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Most DNA testing services use cM value \ distant cousins (relatives).

A centimorgan can tell you how much DNA you share with a genetic relative.

Learn about Centimorgans

How to upload your DNA file from your online testing service to your free GEDmatch account.

Find distant cousins who you share ancestors with.
Ancestor Projects


Getting  Started

Test your DNA

Take a DNA test and download the results as a DNA data file.

Upload the results

Upload the DNA data file to GEDmatch for processing. 

Make comparisons

Explore matching and comparison reports and other DNA tools.

GEDmatch is a free DNA comparison and analysis website for people who have tested their autosomal DNA using a direct-to-consumer genetic testing company, such as 23andMe, or have a custom file from other sources. Testers download their DNA data file from the testing company, and then upload it to GEDmatch. GEDmatch processes the file, adds it to a genealogical database, and provides applications for matching and further analysis. Because GEDmatch aggregates files from all testing companies, your potential for matches is greater.