A filleting device and method for harvesting fillets from a poultry carcass that is moved in a conveyor-line and supported on a carrier. Fillets may be guided to a pulling device that may be placed in or adjacent to the path of the poultry carcass. Harvesting of the fillets may be completed with the pulling device while keeping the fillets pushed against the first guide rail or rails and/or the pulling device. Harvested fillets may be moved to at least one outlet for the fillets.