Useful tools and resources for genetic genealogy

Tools for genetic genealogy

As well as trees and chromosome mapping, the site hosts:

Shared cM Tool

An interactive tool to show possible and probable relationships based on centimorgans shared

Go to the tool

Beta version with updated probabilities

What are the Odds? Beta v2

A tool to use the shared cM from multiple matches to test out hypotheses

Create a new probability tree

Frequently asked questions

Cluster Auto Painter

Takes your cluster file and segments files and generates a chromosome map with the segments grouped by cluster.

Read blog post

Go to the tool

Inferred segment generator

Copy and paste the segments that you and a close relative share with a DNA match, and this tool will output just the segments that you do not share with the match.

Read blog post

Go to the tool

Distinct segment generator New

Copy and paste two or more sets of segments that multiple family members share with a single match. This tool will identify the distinct segments and return cM values for each along with the total cM.

Read blog post

Go to the tool

Common segment generator

Copy and paste in two sets of segments. The tool will return just those that are common to all sets.

Read blog post

Go to the tool

cM estimator New

Enter the chromosome, start, and end positions and this tool will calculate an estimated number of centiMorgans (cM) to one decimal place.

Read blog post

Go to the tool

Individual Match Filter

Paste in segments, and the tool will return the segments and total filtered cM according to the criteria you set

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Cluster Formatter

A simple tool to extract a CSV of clusters and matches from your Genetic Affairs or MyHeritage autocluster output.

Go to the tool

If you're looking for Y-DNA and mtDNA tools, I highly recommend http://scaledinnovation.com/