This online browser-based calculator allows to upload structure files (e.g., CIF or POSCAR formats) or select them from implemented search interface for the Materials Project (MP) database, and it will calculate the corresponding diffractions patterns for X-rays (XRD) and neutrons (ND), or the Partial Radial Distribution Function (PRDF) for each element combination, as well as the Global RDF. If multiple files are uploaded, the PRDF will be averaged for corresponding element combinations across the structures. Additionally, it provides the conversion between conventional and primitive cells and downloading their corresponding CIF files.