This website provides a free app that uses the Y-DNA STR results for a surname project to (1)
suggest groups of kits that probably share a common male ancestor within the
genealogical time frame
or, at least, the
for the applicable surname, and
(2) show the
and relational distances
any individual project kit and each other kit in the project.
For methodology and answers to common questions, see the
. For additional questions, comments, suggestions or problems, please
The Y-DNA STR results data for a project can be input by either (1) saving the project's FTDNA public or GAP Y-DNA Classic or Colorized
results page as an html file and submitting that html file or (2) submitting a .csv file containing the project's
Y-DNA STR results in FTDNA format (i.e. with the same column order and headings as used in FTDNA results tables).
For more information on input options, see Input requirements, advantages and limitations
How to get an .html file of a project's results page
and How to get a .csv file
containing project data
. Note that the app can take 30+ seconds for larger surname projects (200+ kits) and several
minutes for the largest projects (1000+ kits), during which your browser will say that it is waiting for this website.