This one it seems: https://www.maptiler.com/maps/#style=streets-v2&mode=2d&lang=...

		__jonas 7 days ago \| parent \| context \| favorite \| on: Live Map of the London Underground This one it seems: https://www.maptiler.com/maps/#style=streets-v2&mode=2d&lang... It looks like it uses OpenStreetMaps data.