Base
no save loadedDrop a .sav here
Parsed entirely in this browser tab; nothing is uploaded anywhere. Saves live in %LOCALAPPDATA%\FactoryGame\Saved\SaveGames\ — drop the three autosaves together and the history fills in. Your game’s Docs/en-US.json can be dropped here too.
Every building in a save carries its position. Load one and the base is drawn from those coordinates, grouped into the zones you actually built.