How to Merge MP4 Files and Split MP4 Files

There are many occasions when you want to combine some MP4 files into one large file or split a large MP4 files into several parts. This guide will show you how to merge MP4 files and split MP4 files with an all-in-one MP4 merger and splitter, that is Aimersoft Video Converter Ultimate. With it, you can easily finish your task in a few simple mouse clicks! Besides merging and splitting, you can also use it to edit videos and convert among all popular video/audio formats, including MP4, AVI, WMV, MOV, MKV, FLV, ASF, MPG, M2TS, SWF, WMA, MP3, OGG, AAC, FLAC, etc. with fast conversion speed and excellent output quality. If you are using a Mac, get the equivalent Mac version called Aimersoft Video Converter Ultimate for Mac.

Download MP4 Merger and Splitter:

After downloading, install and run the program, then follow the guide below to join or split your MP4 videos with ease. Note that this guide uses Video Converter Ultimate for Windows (Windows 8 compatible) version screenshots. The way to merge MP4 video files and split MP4 files on Mac is the same. Just make sure you get the right version according to your situation.

Part 1: How to merge MP4 files

Click the Add Files button to import MP4 files or simply drag all the MP4 files you want to join to the program. And there are four buttons like remove, clear, move up and move down to manage the source files. As you can see, you can also load DVD files to rip.

Select "Merge into One File" and choose an output format from the drop-down menu of "Output Format" and also choose a proper destination folder from the drop-down list of "Output Format". When all is OK, click the "Convert" button to start joining multiple MP4 files into a big one.

Part 2: How to split MP4 files

Run the program and add your MP4 files to the program by clicking the Add Files button. Then select a video clip and click Edit button and you can split the video into multiple segments by setting the start time and end time or simply moving the sliders.

After the editing of the video, you need to select a proper destination folder to save your split files. When all necessary settings are OK, all you need to do is clicking the "Convert" button to get the MP4 file split.