MP4Tools is a collection of cross-platform free tools to manipulate MP4 files.
It contains following applications:
⦁ MP4Joiner is a free application that allows join multiple MP4 files into one
⦁ MP4Splitter is a free application that allows split a MP4 file in multiple files
The program works for joining files encoded with the same exact source i.e... OBS files will join with other OBS files using the same settings. However, if you encode one video in another program, lets say an intro to your OBS game video, even if they are encoded with the exact same settings the videos will not play right, and can even hang up your system once they are created. Once videos are in the list you cannot reorder them unless you remove them. You basically have to drag each video in one at a time in the order it's supposed to go. I won't even touch on the installer since everyone else beat me to it.