edia is a Chrome extension developed by 四直運用資料室. It is a free add-on tool that allows users to display diagrams on JR East timetable pages.

To use edia, simply follow these steps:

1. Open the timetable page for the desired JR East route.

2. Select edia from the list of extensions in the top right corner of the browser.

3. Click on "Display Diagram" to view the diagram.

Please note that the developer does not take any responsibility for any disadvantages or damages caused by using this extension. Additionally, the content generated by this extension does not guarantee accuracy, completeness, reliability, or up-to-dateness.

With edia, users can conveniently view diagrams on JR East timetable pages, enhancing their experience when planning their journeys.