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Swarm, an offline family tree app for macOS

Details

External ID
49777136
Source
HN
Company
—
Product
Swarm, an offline family tree app for macOS
Website domain
github.com
Launched
Sept. 20, 2026
Cohort
—
Upvotes
7
Upvotes percentile
0.4393939393939394
Tags
—
Fetched at
Sept. 24, 2026, 5:02 p.m.
Updated at
Sept. 24, 2026, 5:02 p.m.

Description

Hi HN! My wife and I got deep into our family genealogy and wanted to map out all our relatives - but keep the data on our own Macs instead of uploading it to a genealogy service. Nothing we found did that, so we built Swarm, a native macOS app in Swift.It's built on GEDCOM 5.5.1, the universal genealogy file standard, so your tree exports cleanly to other ancestry apps if you ever want out. Example trees of famous historical families are included to play with.Features: multiple ancestry views (tree, fan, world map), media files, GEDCOM import/export, PDF export, tree merging, and kinship naming.Fully open source, no AI in the app, no internet connection required, no account required. Would appreciate any feedback!

Enrichment

Theme
personal and family life organizers
Vertical
Horizontal
Function
Content generation
Audience
B2C
AI stance
Not AI
Project type
Hobby / open-source project
Normalized one-liner
offline family tree app for macos
Manually corrected
False

Could you build this?

Yes An offline macOS app built in Swift/SwiftUI that parses GEDCOM 5.5.1 files and displays a family tree graph can be easily vibe-coded using standard Swift libraries and graph layout algorithms.

Discussion

5 comments analyzed.

Competitors mentioned: Ancestry, FamilyTree.org

Concerns raised: Handling and merging large family trees

Feature requests: Online search to populate tree from external sources, Support references to FamilyTree.org identifiers

Competitors

Other products that read as similar to this one — 28 launches clear the similarity bar, closest 8 shown.

Attention rank: #15 of 29 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).

Launched 326 days after the earliest competitor.

Other launches for this product

Same idea, different domain

Nobody's really built a content generation tool for Government yet.