Workflow & Planning

Pedigree Thief

By PeffersGen

Creates ahnentafels from Pedigree Trees (plus other tools to assist with data input to Genealogical DNA Analysis Tool).

View Chrome Web Store

Time on the storeAbout 3 years or moreA rough range, not an exact date

Store users≈2KRounded by the Chrome Web Store

Chrome Web Store rating4.4 / 525 ratings on the Chrome Web Store

Last store update16 Apr 2026Version 3.0.25, 6 months ago

Inside the extension

Pedigree Thief developer product preview 1

Product image 1 of 3

Reviews

Mike Cushing5.1 years ago
Invaluable companion for GDAT. I'm perplexed to see some of the comments in other reviews. I collect DNA data and trees from GEDMatch and MyHeritage on a daily basis. The developer regularly updates the extension to accommodate frequent changes made by these services. It worked great with Ancestry until they threatened all software tools that collect or analyze data from their site with legal action. The facebook support page provides rapid support from many users and from the developer.
David Glass6.7 years ago
Was working great but has stopped reading trees on ancestryDNA (28 Jan 2020). It still says it has access but then when you click there is no activity anymore and it just hangs saying: Pedigree Thief v2.1.5.11 Reading pedigree - please wait
Jim Davis6.8 years ago
A Must-Have for genealogy, especially those doing DNA match research.
Jayne Lein7 years ago
Works great but a few issues. Many Ancestry trees get duplicates in the ahnentafel making that aren't in the original tree leading me to believe that people might be missing or mis-numbered. This leads me to mistrust the data it's giving me. It also crashes sometimes with complex relationships (children of common parents appearing on either side of the tree).
Stephanie Lyn7.2 years ago
I was hoping this would be a suitable replacement for the no longer working ancestry dna helper. Unfortunately it falls very short. You have to download each matches tree one at a time. Not only that but apparently downloading your matches shared matches only works if you have genome mate pro. I'm not looking to get programs, I just wanted a simple addon like ancestrydnahelper was to simply download my matches data.
Seattle Gal7.8 years ago
This used to work, but doesn't anymore... what has changed? I can't see public trees anymore, it comes up with information from my own family, including my Aunt who is no relation to the person who's tree I was looking into.
Sarah Brooks8 years ago
Love this app and how it shows the ahnatafel(sp) for pedigrees across all of the dna genealogy matching companies. Great tool! Thanks!
Kyle Davenport8 years ago
Doesn't seem to be working for me. I get no icon on public member tree pedigrees or on list of DNA matches or on their shared matches. I get a single "Download Ancestors" button when viewing the pedigree of a DNA match. The CSV download works but the file says "Ancestry of null.csv" and shows only name & dates. Was hoping for place too. Help implies something is supposed to happen on a set of matches which is obviously very important with 30,000 matches.
Tech Inst8 years ago
Would be nice if you provided a method to convert the data
J.L. Franklin8.2 years ago
Essential tool for getting the most out of DNA kits for genetic genealogy.
A O'Brien8.3 years ago
Thank you for this amazingly useful extension.
Sharron Fry8.4 years ago
Love this tool. Make sure you are on the Ancestry Pedigree chart before it will work. Some people are upset by the name, suggesting it is stealing other peoples data, where the point is actually to quickly review other trees to find familiar names without having to open layer upon layer of trees.
Gila Jones8.6 years ago
Wonderful tool, and easy to use. Thanks!
Dennis Norwood8.8 years ago
Finally got it back working. I went to the tree outline and not the DNA match screen or the pedigree screen, I noticed that the pedigree thief icon was highlighted and when I clicked on it, it gave me the error to be on the correct page, so when I went back to the DNA Match it captured it like it had done before. I've updated my review. Thanks
Linda Therkelsen8.8 years ago
Outstanding app! So useful for making an Ancestry tree readable.