OBJECTIVE The study reports on the implementation and dissemination of an internet-based program for prevention and early intervention in eating disorders (ProYouth). METHODS The program consists of several modules that can be flexibly combined by users depending on their individual needs for support. The uptake and utilization of the online intervention, user characteristics, as well as the estimated amount of required resources to maintain the program are analyzed. RESULTS Within 16 months, 1211 individuals registered for participation in the program. Active utilization of the different modules varies highly between participants and is related to their degree of impairment. User satisfaction is high. With the current sample, managing the platform requires approximately 11.5 hours of staff time per week. In a sample of 1000 participants, fixed costs (e. g. server and software maintenance) and cost for provision of online support amount to approx. 15 Euro per participant per year. CONCLUSIONS ProYouth allows for the provision of individualized support based on participants' needs. Maintenance of the program is efficient since modules are partly automated. More research on the implementation and dissemination of internet-based interventions is needed to facilitate transfer into routine care.