Pedigree editor is a project that Steve and Marcia build together.
Pedigree Editor
Pedigree Editor is a Windows desktop application for dog breeders, kennel historians, and breed-club record keepers who have outgrown spreadsheets and paper pedigrees. It connects to a shared online registry, so every dog you enter, parents, litters, kennels, breeders, titles, health testing, call names, countries of origin, and photos, becomes part of a single growing database rather than a file trapped on one computer. Search a dog by name and its pedigree draws instantly to whatever depth you choose; click any ancestor to walk backward through the line, jump to a breeder’s other dogs, or browse an entire breed by kennel and country. Records already in a spreadsheet can be brought in with the bulk importer, and duplicate entries that creep in over years of record keeping can be merged cleanly.
Where Pedigree Editor goes further than a pedigree drawing tool is in what it tells you about the breeding itself. Every dog carries a Wright’s Coefficient of Inbreeding and an Ancestor Loss Coefficient calculated from the recorded tree, broken down so you can see exactly which repeated ancestors are driving the number and how complete the pedigree behind that figure actually is. A diversity dashboard puts founders, kinship, and cohort trends on screen for the dogs you care about. The Mate Finder scores every opposite-sex dog of the same breed against a chosen dog and ranks them, and the breeding simulator projects the COI of a proposed litter before the pairing is ever made, so a decision that used to rest on memory and instinct can rest on the pedigree as it stands.
When it comes time to hand something to a puppy buyer, a co-breeder, or a club archive, Pedigree Editor prints. It exports polished PDFs: a classic pedigree chart, a detailed COI report explaining the calculation in plain language, a side-by-side comparison of two dogs, and a full Dog Book, a multi-page volume with a cover, breed introduction, pedigree statistics, notable and influential ancestors, an individual detail page for every ancestor in the tree, and a glossary. Puppy packets pull the litter’s own data into a ready-to-print document with your contract, health guarantee, and go-home notes, leaving blank fields as ruled lines so the packet doubles as the form you fill in by hand. Multiple users can work in the same registry with their own accounts, an audit trail behind every change, and contributor badges and leaderboards that make building a breed’s shared history a little bit rewarding.
You are not tied to the desktop, either. Pedigree Editor also runs in the browser, using the same sign-in and the same registry as the Windows app, not a copy or an export, but the same records, so a dog added at the kennel is on your phone before you have left the building. Nothing to install: open it in any browser, or add it to your home screen and it launches like a native app, with a layout that adapts from phone to laptop and a light or dark theme that follows your device. The web version is a full working tool, not a read-only preview, search and explore the registry, edit dogs and add titles, registrations and sources, upload photos and crop, rotate or set the profile shot right in the page, record litters and puppies, star the dogs you keep coming back to, and compare two dogs side by side. The analysis travels with it: full COI and ancestor-loss reports with a generation-by-generation breakdown, the ancestors driving the coefficient, the ones holding more than one place in the tree, an honest confidence rating on how complete the data behind it is, plus mate ranking and breeding simulation, all from a ringside seat, a veterinary waiting room, or somebody else’s kitchen table.
Links:
- Pedigree Editor Site: https://pedigreeeditor.stedman.us/