NavARP is an open source python project consisting on a companion application during Angle Resolved Photoemission Spectroscopy experiments, and a set of dedicated libraries for deep data analysis. The application has an interactive user interface for exploring the data, enriched by post-processing procedures (e.g. second derivative, Gaussian and Laplacian filters), giving access to the proper band structure axes (k-vectors, binding energy) after a guided transformation from the data acquisition ones (angles, kinetic energy). The so processed and transformed data can be then exported in different format for its inclusion in publications. The same, and more, functionalities are directly accessible in a python object-oriented library extending the possible data analysis work flow.