Gather ICWs and Triangulations
My Heritage no longer provides download files of Relative and Segment data.
However, the Chrome browser extension Pedigree Thief can provide Relative, Segment, Triangulation, ICW and Ahnentafel data.
Written with the guidance of Colin Thomson who is the developer of the Pedigree Thief (PT) tool. See the Help page of Pedigree Thief for more information if needed by right clicking on the PT icon in your browser. Pedigree Thief creates its own database to house the desired data. Note that clearing the browser chache will delete the PT database.
On MyHeritage, navigate to the DNA Matches page.
On the first time of use - the only options available is “Select the number of pages to read” and “Read Matches (and DNA)” or "Read Matches (no DNA)" and "Import - Matches File". At least one page has to be read for each test person. (This is to place profile details in the database.)
MyHeritage imposes data download limits which can lead to your account being blocked if overused. The "(no DNA)" option does not gather the chromosome data thus gathering more matches but no segemnt data.
The "Import - Matches File" allows you to populate PT's database with the Matches file that was previously provided by MyHeritage but has now been withdrawn.
Having read a matches page, clicking the Pedigree Thief icon will now display a "Downloads" section. "Save Matches" will produce a csv file which can be imported into GDAT using the template provided at the foot of the PT Help page. If the "(and DNA)" option was selected then a "Save Segments" options will be available which again can be imported into GDAT using the supplied template.
Navigate to one of your MyHeritage Match pages
Click 'Pedigree Thief' icon.
Repeat as many times as desired to collect each match's information.
Note: The "Save Chromosome Data" button will create a Segments csv file that can be imported into GDAT using the template provided at the end of the Pedigree Thief help page.
Import the direct downloaded files into GDAT (see the relevant section above for details)
ICW and Triangulation imports from Pedigree Thief can be done in any order without issues. However, it is important to be on the correct profile within GDAT.
Note: As an alternative to downloading individual files for each match, you can download omnibus files by opening Pedigree Thief on the MyHeritage Matches page. PT will default to the oldest update not previously downloaded or you can select a more recent date or 'All'.
Gathering a MyHeritage match's family tree can be done in one of the following ways depending on your level of access and or personal preference.
Note: If you are going to gather tree data via either PedigreeThief or One2Tree, you will want to ensure that you are viewing a match's tree from the point that they have assigned to themselves, and not from the home person in the tree (which can occur if the DNA kit is managed by a different person). In GDAT, use the "Links Specific to the current Profile" "Go" button to reach the match's page at MyHeritage. Then scroll down to find the match's tree on the page, this usually appears below the "Shared DNA Matches" listing. Click on the match in this tree view, and then on "View in Tree". From here, you can use one of the browser extensions to gather the available tree data. If you choose to use the "View Tree" link at the top of a match page, there is the possibility that you may end up viewing the tree from a different person's position, and not your DNA Match's position in the tree.
Loading via Gedcom is also possible via the GDAT F2 page of the match and the right click "Import > Gedcom" menu item. This method however requires you to have a Gedcom file for this person's tree, either extracted from your own family tree, or received from your Match while communicating with them. It is also possible to use Pedigree Thief to create a Gedcom from a match's tree if desired.
GDAT (Genealogical DNA Analysis Tool) is a DNAGedcom tool. © DNAGedcom LLC 2020–2026. Genealogical DNA Analysis Tool is provided as is with no guarantee given as to its performance.