The janitors keep the site free of "trash" (broken nodes) by fixing bad HTML formatting and remediating obstructive titles. See What do Janitors do? for more details.

Note: In times past, this order was known as 'editors', but the name was changed because their job is really just to clean up messes, not to serve in any kind of editorial capacity. See What do Janitors do? for more details. vroom announced the creation of the original group here.