EpiENGAGE Measles Outbreak Simulator is an interactive online tool developed by the University of Texas at Austin’s epiENGAGE network and the Texas Advanced Computing Center (TACC). It allows users to simulate potential measles outbreaks in schools. Inputs include vaccination coverage, school size, and initial infections. The simulator employs a stochastic SEIRV model to generate projections, helping users visualize risk and determine how vaccination rates influence outbreak likelihood and scale. It is also pre-loaded with regional vaccination data from some states.