Abstract: An apparatus for moulding shoe insoles onto a foot, having a moulding pad arranged on a support and forming a foot-accommodating region. The moulding pad may have a flexible membrane for supporting the insoles so that insoles can be moulded on without assistance and independently of a standing or sitting position of the user. The flexible membrane may be connected to a bearing surface of the support via a foot-bearing-point fixing means, and a filling region for a fluid for moulding the insole onto the foot between the membrane and the bearing surface may be provided.