If you are looking for some easy approaches to combine videos, you come to the right place.

In this article, you will find 4 different ways that can help you merge MP4 files on the computer. No matter if are using Windows 10 or Mac OS X OS, you can read on and try to easily merge videos by means of free video editing software and online tool. 
You will also find an answer here if you are not sure of how to merge MP4 files online for free.

Part 1. Three Steps to Merge MP4 Files on Windows

For over 10 years, MiniTool Software company has been developing professional partition manager (MiniTool Partition Wizard), data recovery solutions, data backup and restore tools. Their software products have got featured by high-authority tech news sites like Tech Advisor, Life Hacker, TheWindowsClub,  Softpedia, CCM, LifeWire, CNET, just to name a few.

Now MiniTool has expanded its product line to develop multimedia programs for Windows users. The newly updated free 4K video editor MiniTool MovieMaker will meet your need for merging video files without quality loss. 

Furthermore, this MP4 joiner can give you a hand to split long video, trim video, remove or add music to video, extract audio, apply different video transactions, add subtitles, use video templates to edit videos quickly etc. 

This free video editing software without watermark is compatible with Windows 7, Windows 8 and Windows 10.

How to Use MiniTool MovieMaker to Merge MP4 Files on Windows?

Step 1. Import multiple MP4 files into this free video joiner (merger).

Download and install MiniTool MovieMaker on your computer or laptop, then launch it, you will now see the main interface.

merge mp4 files
Merge MP4 files on MiniTool Movie Maker

Then, click the “Import Media files” icon to import MP4 files stored on your computer.

Step 2. Drag and drop those MP4 files to timeline

After importing files successfully, you can see that all the imported files are located in My Album. Drag and drop MP4 files that you want to merge one by one to the video track on the timeline. 

merge mp4 files
Drag and Drop MP4 files
Step 3. Merge MP4 files with one simple click

Click the Play button to preview the content in the video, and then hit on the “Export” button choose a path and define a file name, you can to store the merged MP4 video.

The software chooses MP4 in the format tab by default. But you are free to select other video formats and change video resolution so as to get different video quality and file sizes. 

merge mp4 files

Edit Videos before You Merge them

Prior to merging videos into one, you could use this free video editor without watermark to edit your video to look more professional. The followings are the most frequently used features.

1. Apply Transition 

Click the “Transition” tab in the menu bar and drag your favorite transition mode to the timeline and you can control how the video will play from one MP4 clip to the next one. You can set the duration for every transaction in the video.

2. Trim video

MiniTool MovieMaker can help you remove the unnecessary parts from the original video file, this feature is helpful when you have a long video to edit.

3. Add text/subtitles/captions

This free video joiner can be used to add animated titles as well as subtitles to the MP4 files to convey the information of your video content.

With MiniTool MovieMaker, you can merge video files easier than better, and do basic edits to give your combined video a more professional look. So far, only the Windows version is available for download.


Part 2. How to Merge MP4 Files on Mac OS?

If you want to merge video files on Mac, try iMovie because it has been regarded as a good program to produce videos by many Apple users. After merging the video files, you can and share them on social media or Airdrop. Now, let us move to the 3 steps to merge video files on Mac.

Step 1. Import some of your MP4 files to iMovie.

Download, launch iMovie→ click File at the main menu and choose New Project to start a new iMovie project, after that, enter a name for the project and tweak the project settings, such as aspect ratio.→Click File and choose the Import option→ Choose some videos that you want to combine with the help of iMovie.

Step 2. Join/Combine the clips

After choosing some clips that you want to join, drop them to the project window. (Tip: You can select only a section of the original clip if you don’t want to the whole clip to be merged). Rearrange the order if necessary.

merge mp4 files
Step 3. Export the newly combined file

Now, please click the “Share” button to save the combined/merged video. Here you will notice that the most frequentlyused option is File. If you wish to send the file to iTunes, please click on”iTunes” in this step.

The features are basic for iMovie beginners, but some people might complain it is difficult to join clips using the application.


Part 3. How to Merge MP4 Files Online for Free?

You could search and find many results for online video joiner that is capable of merging MP4 files into one file. In our test, we find Clideo.com is a good option to combine/merge MP4 files. Follow the tutorial below and you could combine MP4 files online for free.

merge mp4 files
Step 1. Upload MP4 files to the platform

Choose multiple MP4 files that you want to merge into one. Apart from MP4 format, Clideo could support other video formats such as AVI, FLV, MOV, MV etc.

Step 2. Customize the settings for the output file

Drag and drop rearrange the clips, trim the video, add an audio and set the volume you need → Now click the “Mergebutton.

Step 3. At last, download files

Save the combined video file by clicking the “Download button.

By using the online tool, you are able to merge MP4 files online for free without needing to download any additional software. However, pay attention that it requires an Internet connection to use the service, besides, and there is a sizerestriction for the video file.


Part 4. How to Merge Some MP4 Files with VLC?

VLC player has been an indispensable video and audio player tool for many years. Maybe you did not realize that VLC can be used for merging video files which are in the same video format. 

Tip: Videos that do not have the same encoding cannot be successfully merged by VCL, you should convert them beforehand, and then follow the tutorial.

Step 1.

Launch VLC media player, click on “Media” → select “Advanced Open Files”.

Step 2.

Click on File and tap the “Add” button to import the files to be merged. Afterward, click on the “Play” button → In the menu, choose “Convert”.

Step 3

Finally, you should set the location to store the merged video.