The article introduces Profex, a graphical user interface (GUI) designed for the Rietveld refinement program BGMN. Profex aims to provide an efficient and user-friendly tool for handling text-based input files, launching refinements, and visualizing results. It supports a wide range of raw data file formats, allowing users to import and compare multiple scans simultaneously. Key features include extensive support for instrument configurations, powerful structure description capabilities, and batch processing for large datasets. Profex also offers advanced functionalities such as chemical composition calculation, refinement presets, and context help for parameter explanations. The software is platform-independent, available under the GNU General Public License, and can be downloaded from the Profex website.The article introduces Profex, a graphical user interface (GUI) designed for the Rietveld refinement program BGMN. Profex aims to provide an efficient and user-friendly tool for handling text-based input files, launching refinements, and visualizing results. It supports a wide range of raw data file formats, allowing users to import and compare multiple scans simultaneously. Key features include extensive support for instrument configurations, powerful structure description capabilities, and batch processing for large datasets. Profex also offers advanced functionalities such as chemical composition calculation, refinement presets, and context help for parameter explanations. The software is platform-independent, available under the GNU General Public License, and can be downloaded from the Profex website.