mitoYDNA: Share mtDNA and Y DNA

Diahan Southard

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Y DNA and mtDNA just got better! The new website promises free, crowdsourced DNA matching for YDNA and mtDNA tests, with options for research and law enforcement participation.

A new website has launched for free sharing of Y DNA* and mitochondrial DNA data, with DNA matching, analysis and tools to help users further their genealogical research. It’s called mitoYDNA, and it’s promising to remain free, crowd-sourced and accessible to all. Here’s what it’s all about and how to participate.

mitoYDNA aims to replace the former Ysearch and Mitosearch public databases, which allowed people who tested with older, outdated companies have a place to share their Y DNA and mtDNA data, respectively—including with those who have more updated test results from the only company now selling these tests, FamilyTreeDNA. (The mitoYDNA website does not accept autosomal DNA data.)

Two days after the site launched in 2019, there were already about 800 kit uploads, split pretty evenly between Y DNA and mtDNA. As of April 2023 (when I last checked), they have made slow but steady progress. Their statistics page reports 8,812 total DNA kits, split almost evenly between Y DNA and mtDNA test types. If you’re used to autosomal DNA testing numbers (which are in the millions), these numbers may sound low, but far fewer people take these tests to begin with. And the site is free. So if you’re looking for more YDNA or mtDNA matches, consider uploading to mitoYDNA.

How to Use mitoYDNA

Currently, the site accepts Y DNA and mtDNA uploads from Ancestry (which used to sell those tests), Family Tree DNA and YSEQ. The site’s Frequently Asked Questions link to instructions for uploading your data from each of these sources.

Basically, to have the site automatically pull your Y-DNA or mtDNA data from Family Tree DNA (FTDNA), you can download a plug-in from Chrome. It adds a button to your FTDNA account that lets them grab your data and save it to your computer:

MitoYDNA Chrome store.PNG

Then in the kit creation form at mitoYDNA, shown here, you choose that file from your computer to upload.

Kit Creation form.PNG

You can also manually enter mtDNA or Y DNA results from Sorenson, Genebase, Oxford, NatoGeo1.0, and others. They provide step-by-step instructions on how to manually enter this data.

DNA Law enforcement access testing databases 11.pngNote that you can choose to be a part of research (which they haven’t really defined yet) or opt-in to law enforcement searching. (Read about law enforcement policies of the major DNA testing companies).

The mitoYDNA website offers these tools:

  • Lookup: Find Y DNA or mtDNA information for a kit number.
  • Compare: Compare the small HVR1 and HVR2 regions (so not the full sequence test) for up to 24 mtDNA kits (23 to the 1st kit).

    For Y DNA, that means comparing genetic distance, haplogroup (your deep ancestral group) and markers (with differences highlighted).

  • Matches: Find kits that match your kit, with the parameters you provide. For Y DNA you can choose how many differences from your match you want to see (called genetic differences) and choose on how many tested markers (Y DNA locations). For mtDNA you can choose how many differences you will allow between your kit and others and on which regions (HVR1 or HVR2 or HVR1+HVR2) you want them to look. Here’s what the screen looks like:

Tools Menu.PNG

  • Famous: enter a Y DNA or mtDNA kit to see if it matches a “famous” person in the mitoYDNA database.
  • Search: you can search by name, location, or haplogroup to find kits that meet the criteria you’re looking for.

A little more about mitoYDNA

mitoYDNA is run by a nonprofit group comprised “of collaborative genetic genealogists who believe genealogists can have access to a Y-DNA and mtDNA database which includes Y and mtDNA testing from all available companies today and those of the future. mitoYDNA Ltd. is based on the principles [of] genealogical collaboration and continues to work to keep mitoYDNA straightforward, current [and] expanding.”

By the way, I have talked with two of their leaders, Mags Gaulden and Rob Warthen, about hopefully making this the home for all of the Sorenson Molecular Genealogy Foundation mtDNA and Y DNA data.

Learn more about YDNA in our free YDNA FREE Get Started Course. Learn the many ways YDNA might help you answer your questions about your family history. The free Get Started Course is an excerpt from our YDNA for Genealogy Course, which takes you deeper into understanding Y-haplogroups and using them in genealogy research (as well as other topics such as YDNA matching, surname project participation, and when to use Big Y).

Tell me more about the YDNA FREE Get Started Course!


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<a href="" target="_self">Diahan Southard</a>

Diahan Southard

As founder and CEO of Your DNA Guide, Diahan Southard has been teaching people how to find family history answers in their DNA for several years, and she's been in the genetic genealogy field since its infancy. Diahan teaches internationally, writes for popular magazines, consults with leading testing companies, is author of Your DNA Guide–The Book, and producer of Your DNA Guide–the Academy, an online learning experience.


  1. Face DNA Test

    Thank you for sharing the details of a new website. I’ll definitely be going to try this.

  2. Top Adelaide Tiling

    Thanks ! It’s informative.

    • Nicholas Korda

      It’s not working

  3. Top Adelaide Tiling

    This website and I conceive this internet site is really informative ! Keep on putting up!

  4. Jim Walls

    Just curious why you think this option (mitoYDNA) is OK/safe, but gedmatch (which has been around much longer) is not? Just trying to understand the differences, that’s all!

    • Diahan Southard

      There are fewer YDNA/ mtDNA analysis tools out there, so one of the biggest differences is that mitoYDNA gives tools not available in other places in a way that GEDmatch doesn’t. When GEDmatch started, there weren’t many other means to compare autosomal DNA, but in the last few years other autosomal DNA testing companies have expanded their services and tools such that, in our opinion, makes GEDmatch less relevant. You can read more about our view of GEDmatch here.

  5. Tracey Obrien

    My halplogroup is H3 so when I look at mine and my mothers SNP haplogroup for H3, H and HV does that mean that all those ethnicities are all on my maternal side or does it include the paternal too?

    • Your DNA Guide

      Hi Tracey – Your mtDNA haplogroup is inherited entirely from your maternal line, so mother’s mother’s mother etc. No paternal involvement at all.


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