MediaInfo is a tool that gives a clear overview of the most relevant technical and tag data of video and audio files. It shows, among other things, container, video, audio, text and chapter information. You can use it through a graphical interface, on the command line, or as a library in your own software. It is meant for anyone who has to check or describe media files, such as archives, broadcasters, production companies and developers. There are versions for Windows, macOS, Android, iOS and many Linux distributions, plus MediaInfoOnline, a browser-based version.
MediaInfo is developed by MediaArea, whose operating company is French according to its legal page. The software is released under a BSD-style licence with open access to the source code. The website currently shows version 26.10. The desktop and command-line versions run locally, so your files stay on your own device. MediaArea also offers paid support services, such as integration and custom development.