The chart is still empty

Just answer the questions in “💬 Quick build” and a draft is ready.
You can also add people from the left panel, or double-click on the chart to add them.
Drag ＝ select an area Space＋drag ＝ pan Wheel ＝ zoom

Let's build your family chart

Create, save and print charts for inheritance procedures, Family Court records or simply sorting out your family — all on this one page.

💬 かんたん作成アシスタントAnswer the questions and the chart builds itself

People 0 ／ Lines 0 100% 未保存

How to use and symbol key

Supports both the standard genogram (family relationship chart) notation used in family courts and child welfare, and the notation for inheritance relationship charts used for inheritance registration and the statutory heir information chart (法定相続情報一覧図).

Start here

💬 Quick build: just answer the questions in the chat and a draft inheritance chart or family chart is ready.

Once the draft is ready, click a person → add date of birth, address, renunciation of inheritance and so on in the left panel.

Person symbols

□ Square

Male

○ Circle

Female

◇ Diamond

Gender unknown

× mark

Deceased (drawn over the symbol)

Double border

Index person (IP)

Thick brown border

Decedent (inheritance mode)

Relationship lines

── (horizontal line)

Marriage. A single solid line is standard in genograms (family court / welfare), while a double line is the convention in inheritance relationship charts, so the line switches automatically according to the purpose mode

── (widowed)

Bereavement. Shown with the label 「（死別）」 (the partner who died gets an × mark)

─⫽─

Divorce (two slashes across the line)

─／─

Separated (one slash across the line)

╌╌╌

Common-law / de facto partnership (dashed) ／ engagement (dotted)

│ (vertical line)

Biological child. Hangs from the midpoint of the couple's line

┆＋「養」

Adoption (dashed) ／「里」＝ foster child / fostering

Red dashed line

Conflict

Red zigzag

Abuse / domestic violence

Thick green line

Primary caregiver

Double thin line

Close / enmeshed

Line ＋‖

Cut off / out of contact

Dotted enclosure

The family members living together

Basic operations

Person cards are moved by dragging (the lines follow, staying straight horizontally and vertically).

Drag on an empty area to select a range: the people you enclose can be moved, deleted or put in a household box together (Ctrl＋click also selects several).

Relationship lines can be adjusted by dragging too: couple lines move left and right, parent–child and sibling lines up and down. Double-click puts them back.

Clicking a person or a line brings up a menu at the top of the screen: edit or delete, or press the Delete key to delete.

To move the view (pan), use Space＋drag or drag with the mouse-wheel button; turn the wheel to zoom; double-click to add a person.

In the chat (💬 Quick build) you can use the buttons or type free sentences such as “enclose Yamada Taro and Yamada Hanako in a household box”.

If something is missing (such as the decedent's date of death), a ⚠ button appears next to the title. Click it to see the list of items to check and jump to the relevant part.

A backup copy of your work is saved automatically inside the browser and can be restored the next time you open the tool. For a permanent save, use the “Save” button to write a file (.json).

Keyboard shortcuts

Ctrl+S

Save (from the second time on, overwrites the same file)

Ctrl+O

Open a file

Ctrl+Z

Undo

Ctrl+Y

Redo

Delete

Delete the selected people, lines and boxes

Arrow keys

Nudge the selected person

Ctrl+A

Select everyone

Esc

Deselect / leave the current mode

About the saved file

The save format is a JSON file specific to this tool. In supported browsers (Chrome / Edge), a dialog opens to choose the destination folder, and the tool remembers the folder you used last time. From the second “Save” onward, the same file is overwritten, and the number of saves and the last update time are recorded inside the file. In other browsers, the file is saved to the “Downloads” folder. Files from older versions can be opened as they are.