https://www.techradar.com/news/the-best-free-video-converter

Converting video is nowhere near as complex a task as video editing, but many people will be put off doing it because of the mistaken belief that you need a complicated and expensive video editor is needed. In fact, some of the best video converters are completely free to download, and can handle a huge array of file formats.

There are many reasons why you might want a free video converter. You might want to play a particular video on a device that has limited storage and there need to reduce the size of the file.