Digital platform is rarely used to market wedding planning industry, so the development of a digital platform based on the wedding planning service website is needed. This research aimed to (1) design the concept for developing a digital platform for wedding planning service websites; (2) develop a digital platform for the wedding planning service website (3) measure the feasibility of the developed digital platform for the wedding planning service website. This research employed the Research and Development (R&D) method with 4D development model that consists of (1) Define (2) Design (3) Develop, and (4) Disseminate stages. The product of this research is the wedding planning service website entitled "Wedding Market". The website displays information related to wedding vendors in the Yogyakarta City area. The vendors provide services and products for photography, make-up, wedding gowns and suits, and decoration. The developed website went through a validity test, and it was found that the value obtained is 94.25% (Very Feasible). Then, based on the results of media expert validation, the websites is considered Very Feasible (89.17%). From the overall results, it can be concluded that the wedding planning service website "Wedding Market" is very feasible and well received by users.