TreeTidy

One-time $24.99 for the app with Pro: applying fixes, merging duplicates and saving the cleaned copy with its change log. No subscription. One license key works on up to 3 of your Macs.

Download: The download (a signed, notarized .dmg) comes with your purchase in your Gumroad receipt, together with your license key. Updates install from inside the app.

Buy now opens Gumroad's checkout on this page; Gumroad is the seller and handles payment, sales tax and your receipt.

Features

• Reads GEDCOM 5.5.1 and 7.0 in common text encodings; opened and saved with no fixes, a file comes back byte for byte
• Likely duplicate people (names with nicknames and initials, plus dates, places or relatives in common) and duplicate families
• Impossible dates flagged, never changed: died before born, parents too young or too old, and more, with limits you can set
• Messy dates like “12/03/1890”, “abt. 1802” or “March 12, 1890” put in standard form
• Place names spelled several ways, grouped so you pick one spelling
• Missing names or sex, broken and one-way links, empty families and unused records
• Every change previewed before and after, undoable, and saved to a new file with a change log
• Merges keep every name, fact and source, and are never ticked for you

Requirements

macOS 14 Sonoma or later. Apple silicon and Intel. Works with GEDCOM files exported from your family-tree program. Current version: 1.0.

Privacy

Your family tree never leaves your Mac. TreeTidy works only with the files and folders you pick and never changes the original file. The only network requests are the license check with Gumroad and checking for updates.