MagNav.jl is an open-source Julia package that contains a full suite of tools for aeromagnetic compensation and airborne magnetic anomaly navigation. This talk will describe the high-level functionalities of the package, then provide a brief tutorial using real flight data that is available within the package. The functionalities can be divided into the four essential components of MagNav: sensors (flight data), magnetic anomaly maps, aeromagnetic compensation models, and navigation algorithms.