mtDNA haplogroup finder

Mitochondrial DNA is inherited from your mother and passes down the maternal line almost unchanged, so like the Y chromosome it forms a single-line tree — but everyone has it, not only men. This tool reads the mitochondrial variants out of a 23andMe, AncestryDNA or MyHeritage export, matches them against the published tree, and reports the branch your variants place you on, the specific variants that placed you there, and which branches below it your file could and could not test.

Your maternal haplogroup describes one thread: your mother's mother's mother, and so on. It is not an ethnicity and not a measure of your overall ancestry, which is spread across the rest of your genome. The mitochondrial genome is also small — a few thousand times smaller than the nuclear genome — so it resolves a lineage, not a population history.

Coverage sets the ceiling here too. Consumer chips test a limited selection of mitochondrial positions, so the branch you can be assigned is bounded by which of them your file contains; a broad assignment usually reflects a sparse file rather than a shallow lineage. Showing which downstream branches remain untestable is the honest form of that limit, and where the evidence is too thin the result says so rather than reaching for a deeper branch. Runs need a free, email-verified account, and the uploaded file is deleted after the analysis.