AME (Almost Matching Exactly) is an interactive web-based application that allows users to perform matching for observational causal inference on large datasets. The AME application is powered by Fast Large-Scale Almost Matching Exactly (FLAME) (JMLR’21) and Dynamic Almost Matching Exactly (DAME) (AISTATS’19) algorithms that match treatment and control units in a way that is interpretable, because the matches are made directly on covariates, high-quality, because machine learning is used to determine which covariates are important to match on, and scalable, using techniques from data management. Our demonstration shows the usefulness of these algorithms and allows easy interactive explorations for treatment effect estimates and corresponding matched groups of units with a suite of visualizations providing detailed insights to users.