A free, open-source crystallographic application for Windows for exploring crystal-structure databases, visualizing 3D structures, and simulating and analyzing X-ray, electron, and neutron diffraction and electron-microscope images.

ReciPro is a free, open-source desktop application for crystallography, electron diffraction, and transmission electron microscopy simulation. It lets users explore built-in and online crystal-structure databases, visualize crystal structures and goniometer geometry in real-time 3D, plot stereographic projections, and simulate single-crystal, powder, and convergent-beam diffraction patterns for X-ray, electron, and neutron sources using both kinematical and dynamical (Bloch-wave) theory. It also simulates high-resolution TEM and scanning-TEM images and supports semi-automatic indexing of experimental electron-diffraction patterns. All functions are linked through an interactive graphical interface, so results update synchronously in near real time and the relationship between real space and reciprocal space becomes easier to understand and to quantify. ReciPro is aimed at mineralogists, materials scientists, and electron-microscopy researchers, and is designed to be approachable for students and newcomers as well as experienced practitioners. It has been developed continuously since 2002 and is used in research and teaching at universities and companies worldwide.