Abstract: The invention relates to a device (10) for the flexible roll forming of a semifinished product (12), in particular a rolled sheet, to form a profile (12?, 12?) with a cross section varying along the longitudinal axis thereof and/or with a varying longitudinal axis. The device (10) has a frame (14) and a number of supporting devices (16), which are carried by the frame (14). The supporting devices (16) are each movable in a translational manner in relation to the frame (14) and rotatably mounted. The device (10) also has a number of profiling units (18), which each have a pair (20) of rotatably mounted rollers (20?, 20?), between which a rolling gap (102) remains. According to the invention, precisely two profiling units (18) are arranged in a rotatably mounted manner on each supporting device (16).