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
People seem a little confused, so I'll clear it up. It's the sourceforge installer that asks to change your homepage and all that. MP4 joiner itself doesn't do that after you get to it. Just pay attention to prompts, that's good advice for downloading /anything/ online because they all try to do that anymore. With that out of the way, the program does just as it says, more more no less. On those grounds it's pretty great. It did just, stop working on me and I had to reinstall. Don't know why.