Visualizzatore file fprg (Flowgorithm) is a Chrome extension that allows users to view Flowgorithm diagrams within the browser. It is a free program developed by sonia.guerci and falls under the category of Browsers with the subcategory of Add-ons & Tools.

Flowgorithm is a popular programming language for beginners that is based on simple graphical flowcharts. It is widely used by computer science teachers in high schools to introduce students to programming concepts. However, Flowgorithm is only available on Windows, and the files it generates are in XML format with the .fprg extension.

To view the diagrams of .fprg files, typically submitted by students on platforms like Google Drive or Google Classroom, the teacher would need to download the file and open it with Flowgorithm. This extension simplifies the process by converting the XML file into an SVG file that can be easily viewed directly in the browser, eliminating the need to download and open the file with Flowgorithm.

It is important to note that this extension does not require any permissions when used outside of Google Classroom. However, when used within a Google Classroom assignment, it requires user authorization to access the file through the Google Drive API.

Please note that this extension can also be used with local files (e.g., c:\...) by enabling "Allow access to file URLs" in the "Extensions Management" settings of Chrome.