twineconvert

free · in-browser · no upload

GEDCOM to HTML
Converter

Drop your GEDCOM file. We'll convert it to HTML right here in your browser, your file never leaves your device.

or drop your file

Select your file here to get started

or drop your file here.

Accepts .ged, .gedcom

nothing uploaded no file size cap no signup

How it works

Three steps. No upload, no signup.

  1. 1

    Drop your file

    Click the dropzone above or drag a GEDCOM from your desktop. Files of any size, there's no upload, so there's no upload limit.

  2. 2

    Convert in your browser

    The conversion runs entirely in this tab using JavaScript and WebAssembly. Your file never touches our servers, we don't have any.

  3. 3

    Download

    Get your HTML the moment the conversion finishes. Convert another, or close the tab.

Files stay on your device

Your file is never uploaded. The entire conversion runs in your browser using WebAssembly. We can't see what you convert because we have no server to see it.

No file size limit

Server converters cap free users at 1-2 GB and gate larger files behind a paid plan. Since nothing uploads, our limit is whatever your browser can handle.

Free, no signup, no ads on conversions

No account required. No watermark on the output. No queue. Drop a file, get a converted file.

Why convert GEDCOM → HTML

What this conversion is actually for

Turn a GEDCOM into a readable web page you can open in any browser or share with family who don't use genealogy apps, no Ancestry login, no software install, just a clickable HTML file of the tree's people and facts.

A real example

You want to email Grandma a readable version of the family tree. She's not installing Gramps. Convert the GEDCOM to HTML, send the file, she double-clicks, it opens in her browser, done.

Troubleshooting

Living relatives' details are visible, privacy concern.

We render what's in the GEDCOM as-is, including living people. Before sharing, either privatize living individuals in your genealogy software and re-export, or remove those INDI records from the .ged first. The conversion never uploads anything, but the output file contains whatever the source did.

Formats involved

About GEDCOM and HTML

GEDCOM, Genealogical Data Communication

GEDCOM is the universal interchange format for family-tree data. The current spec is GEDCOM 7.0 (2021) but most genealogy software still emits GEDCOM 5.5.1 (2019) for compatibility. Plain-text hierarchical records: 0-level lines define individuals (INDI) and families (FAM); deeper levels (1, 2, 3...) attach attributes like names, dates, and places. Every major genealogy app reads and writes GEDCOM.

How to open

Ancestry, MyHeritage, FamilySearch, RootsMagic, Family Tree Maker, Gramps, MacFamilyTree. Plain text in any editor.

Full GEDCOM format guide →
HTML, HyperText Markup Language

HTML is the markup language of the web, every browser displays HTML documents natively. Files contain text plus tags (<h1>, <p>, <a>, etc.) describing structure and links. Modern HTML5 also supports embedded media (audio/video) and complex semantic markup.

How to open

Every web browser. Any text editor for source. Modern editors (VS Code) syntax-highlight HTML.

Full HTML format guide →

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FAQ

Common questions

Is this GEDCOM → HTML converter really free?

Yes. No signup, no watermark, no daily file count limit. Every conversion runs in your browser, your file never touches our servers because there are no servers.

Where does my file go when I convert it?

Nowhere. The conversion runs entirely in your browser using JavaScript and WebAssembly. Your file is never uploaded to our servers. We don't have any servers handling files, there's nothing for us to log, store, or accidentally leak.

What's the maximum file size?

Whatever your browser can hold in memory. Practically, this means a few hundred MB on most computers, significantly larger than the 1-2 GB caps that server-upload converters charge for. Very large files (multi-GB) may require closing other browser tabs first.

Why convert GEDCOM to HTML?

Family tree interchange between genealogy programs. Web pages; structured document interchange; readable archives. The most common reason to convert is compatibility, HTML works in places where GEDCOM doesn't, or vice versa.

How do I open a GEDCOM file in the first place?

Ancestry, MyHeritage, FamilySearch, RootsMagic, Family Tree Maker, Gramps, MacFamilyTree. Plain text in any editor.

Does this work offline?

Once the page is loaded, the conversion itself runs entirely offline. The first time you use a tool, your browser downloads the conversion library (a one-time cache). If you reload while offline, the page won't load, but you can install the site as a Progressive Web App for full offline use.

Can I convert multiple files at once?

Single file at a time for now. Batch conversion is on the roadmap, for now, drop one file, download the result, then convert the next.