Provided is a housingless connector in which a plurality of cantilevers arranged in a comb shape and functioning as contacts is hardly damaged. A receptacle connector (housingless connector) is formed of a single metal plate and used to be mounted on a receptacle-side substrate. The receptacle connector includes a plurality of cantilevers arranged in a comb shape and functioning as contacts, and an outer frame body surrounding the cantilevers. The outer frame body includes a pair of side plates sandwiching the cantilevers in a direction parallel to a connector mounting surface of the receptacle-side substrate, and a top plate disposed on an opposite side of the receptacle-side substrate with the cantilevers interposed therebetween.