Teams and lineups are saved automatically in this browser on this device. Nothing is sent to a server. They stay after closing the tab or restarting, but other browsers and devices won't see them.

Clearing browsing data or site data for this page deletes them. Private/incognito windows forget everything when closed.

Use Export team (current team) or Export all teams in the team menu (top right) to download a .json file. Use Import to load either kind of file in any browser or device. You'll be asked whether to override existing teams with the same name or add the imported teams as new ones.