  PCrystalX-Web is a web application developed to be easy and fast to use. The
purpose of the software is that researchers from any area are able to use two
methods to analyze an X-ray diffraction pattern more straightforwardly. With
the full width at half maximum (FWHM) as a function of 2$\theta$ for each peak,
it is possible to estimate the crystallite size by the Scherrer equation and
apply the Williamson-Hall methods. PCrystalX-Web is a simplified version of the
PCrystalX Software [1] program, which is still under development.
