Linea Codex

The modern GEDCOM editor

Your family history, in your own hands.

Open any GEDCOM and put your hands on the file itself — edit, validate and convert it, or grow it into a living pedigree — all in your browser, nothing ever uploaded. And your whole tree stays yours — open, standard files any tool can read, kept on your device for good.

No install. No account. Works offline.

Come for the tools

Bring your GEDCOM. We speak it fluently.

GEDCOM 5.5, 5.5.1 and 7.0 — parsed, validated and converted against the real specification, not a loose approximation.

A validator that cites its sources

Every issue points to the exact clause and page of the GEDCOM spec — so you learn not just what is wrong, but why.

Convert without losing a thing

Move between 5.5, 5.5.1 and 7.0 through one faithful model. Compliant in, compliant out, with explicit warnings — never silent loss.

Fast enough to feel instant

Parsing and validation run off the main thread, so even large trees stay responsive while you work.

So… why export it back out?

You came to fix a file — but it is already here, open and validated, and quicker to edit than the tool you started in. It never left your device. There is nothing to migrate and no one to trust with it. You could just stay.

Stay because it's yours

A home that never holds your data hostage.

Your tree lives as plain GEDCOM text and ordinary files on your own device — no proprietary database, no account, no lock-in. Leave whenever you like; that is exactly why moving in costs nothing.

Offline-first & private

Everything runs locally in your browser. No server, no telemetry — your family history is nobody's business but yours.

You own every byte

Standard files any GEDCOM program can read. Export the whole project — media included — as a single GEDZIP whenever you want.

Reads files from anywhere

More than 30 character encodings, including legacy ANSEL, with automatic detection — so that decades-old export simply opens.

Thoughtful in every corner.

4 languages35 themesKeyboard-first & accessibleFully offline

Come for the conversion. Stay for good.

Open Linea Codex right in your browser — no install, no account.