The Ultimate Solutions to Combine MP4 Videos on Desktop and Online

February 05, 2024Louisa White

How to combine videos into one file? Video making covers most methods to create the best output. Depending on the concept, a video can be more appealing with multiple angles and shots. Separate cameras and shooting strategy will pile up multiple clips, and eventually, you will need to compile them into one to create a film. To help you easily combine MP4 files, here are some tools to try on Windows and Mac.

Combine MP4 Files

Part 1. How to Combine MP4 Files on Windows 11/10, macOS X, and Above

You can find various methods to combine MP4 videos into one. But there are only a few that are quick to use and do not reduce the quality. Here are the best pick tools for Windows, Mac, and other operating systems.

Aiseesoft Video Converter Ultimate

Aiseesoft Video Converter Ultimate is a professional AI software for Windows and Mac. It has all-in-one features, including the Video Merger for MP4, MOV, MKV, WMV, and other formats. With its advanced functions, you can edit the uploaded clips with new effects and filters and adjust the sound volume to your preferences. Furthermore, the tool has advanced settings for the output profile, letting you configure the video format, resolution, quality, and frame rate. This is the most user-friendly solution for combining MP4 files on Windows and Mac.

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Step 1.
After downloading the software, open Aiseesoft Video Converter Ultimate on your desktop. Go to the Toolbox menu and search for the Video Merger option. Add the first clip to the program. Then, click the Add button to upload another file.
Video Converter Ultimate Video Merger Upload
Step 2.
Rearrange the videos according to your preference. Then, edit them by trimming, cutting, or changing the aspect ratio. Use a new filter or effect to enhance the visual.
Video Converter Ultimate Edit Rearrange
Step 3.
Once the video is set up, click the Play button to preview it. Go to the Save To menu and browse for the output's location folder. After that, click the Export button to combine MP4 files into one video.
Video Converter Ultimate Save to Export

Photos on Windows

Did you know that the Photos app on Windows 10 and 11 provides a built-in video editor? It’s true and lets you edit videos on Windows effortlessly. The default app is not only for viewing and organizing media files, but it also has video editing tools to merge, trim, and design video clips quickly. Here is a simple demonstration of using Photos on Windows to merge MP4 files:

Step 1.
Quickly search the Photos app from the Start menu on Windows. Once you have entered the app, click the Create button and choose the Custom Video with Music option.
Photos App Windows Create Video Combine MP4 Files
Step 2.
Upload the videos you want to merge, then click the Create Video button to continue. Edit the audio or apply a new theme to the footage. Then, merge the clips by clicking the Done button.

QuickTime Player for Mac

For a quick edit, your QuickTime Media player on Mac can help you merge videos with ease. QuickTime is a default tool for Mac, so any version has it. Moreover, it has additional tools without requiring a plugin, including a screen and audio recorder. However, QuickTime does not offer other editing tools for the merged clips. But if you wish to use this tool, here are the steps:

Step 1.
Import the video file to QuickTime Player. Then, you can drag and drop the other video files to the media player.
Step 2.
Rearrange the video clips and preview them. Click the Done button to combine the uploaded videos completely.
QuickTime Player Open File Drag Video

Part 2. Step-by-Step Guide to Merge MP4 Files Online

Another method to combine videos into one is through online tools. The following websites are the recommended tools.

Online Video Merger

Join MP4 files together with the Online Video Merger by 123Apps. It eases the solution with a clean website without requiring you to install anything. It is also free and accessible on any browser, with a Chrome extension available on the store. The best part of the online tool is it prepares you with abundant features for further editing.

Step 1.
Click the Open File button and upload the first video on the website. You will get directed to the editing page.
Online Video Merger Open File
Step 2.
Go to the Files menu in the upper left corner and import another video clip. By clicking the Plus icon, you are adding the second video to the timeline.
Step 3.
Use other functions to edit the merged video. Preview once done, then click the Save button to export the final result.

Clideo Merge Videos

Among its other tools, Clideo Merge Videos can help you combine MP4 and other formats into one file. The unique part of the online video merger is its multiple options to import files while giving the user presets for music and themes. It is completely free on Chrome and Safari without applying a watermark on the merged video file.

Step 1.
Click the Choose Files button or open the dropdown menu and choose another source for uploading.
Clideo Merge Videos Choose Files
Step 2.
Once the file is uploaded, click the Add More Files button from the top right corner. Arrange the video clips as you wish. Then click the Export button to combine MP4 files.

Part 3. FAQs about Combining MP4 Files

How can I merge MP4 files with large sizes on Windows 10?

Use the Photos app to merge large files on Windows. Now, if the application takes longer to process the videos, it is best to use advanced software like Aiseesoft Video Converter Ultimate or VLC.

Can I combine MP4 files on Mac using iMovie?

Yes. iMovie is the default video editor for Mac. You only need to open the app and click the Create New button. Import the first video and drag it to the timeline. To add another clip or so, press the Shift button and select the desired videos. Then, go to the Modify menu and choose the Join Clips option.

What is the best online tool to combine MP4 videos?

You can try the recommended online tools in this post. They have the best results, as well as a fulfilling user experience.


After reading this post, you discovered the best way to combine MP4 video into one file. There are built-in apps that allow you to merge videos and also online tools as alternatives. But for the best result, Aiseesoft Video Converter Ultimate is a go-to for Windows and macOS. Get the free trial version to experience its professional features.

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MP4 Video Editor

1.1 MP4 Editor 1.2 MP4 Joiner 1.3 MP4 Splitter 1.4 MP4 Trimmer 1.5 MP4 Cutter 1.6 Edit MP4 Video 1.7 Rotate MP4 1.8 Combine MP4 Files 1.9 Extract Audio from MP4 1.10 Remove Audio from MP4 1.11 How to Add Subtitles to MP4 1.12 Trim MP4 Video 1.13 Compress MP4
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