Download and install VLC Media Player on your computer. Now, let’s take a look at these fantastic features and functions on how to merge MP4 file on VLC. On your computer, you may have downloaded and gathered a pile of MP4 videos for various purpose, now you may have the need to merge some of the MP4 files to a single video file for your further purposes. What’s more, within VLC Media Player, you are not only allowed to play all kinds of multimedia files, but also you can be able to edit the videos on it as well, including video trimming, rotating as well as merging. With VLC Media Player, users can undoubted obtain the most convenient and quick playback solutions with ease and accuracy. There are corresponding playback programs on various operating systems. The player supports OS X, Windows, Linux, iOS, Android, Chrome OS and other operating systems. This program and its source code are free. There is no charge for personal use of VLC. VLC Media Player can provide source code download. VLC Media Player is a free, cross-platform, open source player and framework for playing most multimedia files, as well as DVDs, audio CDs, VCDs and various streaming protocols. Part 5: How to Check and Play Merged MP4 File.Part 2: How to Merge MP4 File on Windows.