Each year, 6 million children die from preventable causes, more than the population of Boston. OPENPediatrics was launched in 2014 to improve pediatric care worldwide by providing an open-access online library of medical education resources. It has grown significantly, with over 450,000 resources shared across 1,171 hospitals in 129 countries. User feedback indicates the materials have helped reduce infection rates and save lives by improving understanding of best practices. The organizers aim to continue expanding the community and types of resources provided, including for nurses, parents and continuing medical education.