5 Best MP4 Joiner Software to Combine Multiple Files into One

By Cecilia Hwung | Last Update:

MP4 joiner is a tool that you can use to merge two MP4 files or multiple ones into a new one. And there are so many situations where we need it in video editing. For example, at the wedding, people often have multiple recording videos to memorize every scene of the special event. Some of them would ask how to make them a new one, just as some of our users did. At this moment, you need an MP4 combiner. And you may have more reasons for needing such kind of tools.

But what are they? In this post, we will list 5 easy-to-use MP4 joiner applications to help get you out of those situations, with detailed feature explaining and how-to-use. Check them now.

Overview of 5 Best MP4 Joiner

  1. VideoProc
  2. MP4Joiner
  3. VLC
  4. FFmpeg
  5. Clideo

VideoProc

Combining MP4 files is just one of the VideoProc features, and it also includes editing skills like trimming, splitting, rotating, flipping, deshaking, adding text, etc. For MP4 merging, VideoProc ensures users the fastest processing speed, because it supports level-3 hardware accelerating technology. And not just MP4 file, it covers almost all video formats. It means that you can not just combine multiple MP4 files into one, but also files with different formats.

Wonder how to use it for the merging work? Free download it now and follow the steps below.

Step 1. After you install it on your Windows 7/10 and macOS computer, launch it and choose the Video menu.

choose Video menu from VideoProc homepage

Step 2. Click the +Video button to import the MP4 files. You can also just drag them into VideoProc. Then choose the output format at the bottom of VideoProc.

import video and choose the output format in VideoProc

Step 3. Switch the bottom menu to Toolbox column from Video column, choose the Merge button, and then click on the RUN button to start processing. Please remember to check the Auto Copy feature, which is above the RUN button, and will make sure MP4 combining without re-encoding.

combine MP4 files in VideoProc

MP4Joiner - MP4 Joiner without Re-encoding

MP4Joiner has enjoyed a good reputation for a long time in combining MP4 files. Guess you must see or heard it many times. It is included in the free MP4Tools package, which has two MP4 tools, MP4Joiner and MP4Splitter. MP4Joiner is a tool only designed for files with MP4 format. It means users can only process and join MP4 files.

According to our test, if the files are with not MP4 format, but MOV, for example, it will not work, with a piece of message like MP4Joiner failed. But for MP4 files with different codecs, resolution, etc. it can still work. We have successfully used it to combine an MP4 file encoding in H.264 and an MP4 file encoding in HEVC.

Besides, it is compatible with Windows 32-bit and 64-bit, macOS, and even Linux. It also supports no re-encoding and quality loss. But if you want some re-encoding, it can still help you in its Options feature. And below are the detailed operating steps.

Step 1. Download the MP4Tools package here, and install it on your computer.

Step 2. Run it, and you will see a green + Add Video icon. Click it to import the MP4 files.

Step 3. You can click the arrow button on the right side of it to sort those files.

Step 4. After all done, just click the Join button and choose the output folder to make them into one new file.

combine MP4 files in MP4Joiner

VLC

We often apply VLC for media file playing, but you know it can do more. There are just a lot of editing features hidden in it. And combing MP4 files is just one of its highlights. In VLC, you can put multiple MP4 clips together within like a couple of clicks. It is pretty easy to operate. Best of all, it is totally free. But the bad thing is that this VLC method seems unavailable to join files with different formats. For example, there are three files, two with MP4 format and one with MOV format; if we want to join them all into a new video, base on our testing, it does not work.

Anyway, if all files are with MP4 format, there would be no problem. And here is the how-to guide,

How to Merge MP4 Files with VLC

Step 1. Run VLC on your Windows/Mac computer.

Step 2. Choose Open Multiple Files under the Media menu.

choose Open Multiple Files in VLC

Step 3. Then on the pop-up screen, click Add button to import the files. Since VLC does not provide the option to change the sequence of clips, we would advise you to import one by one, if you plan to put some clip in the beginning, or some clip at the end of the new MP4 file. After that, choose the Convert option form the Play button, or use the shortcut ALT + O.

add multiple MP4 files in VLC

Step 4. There will be another pop-up screen. Choose the output format in Profile, and then just click the Start button. VLC would start converting all the MP4 files into a new one.

combine multiple MP4 files in VLC

FFmpeg

FFmpeg is a set of open-source command-line computer programs that can be used to processing audio, video, and other multimedia files. It includes the libavcodec, currently the leading audio/video encoding library. FFmpeg was developed under Linux, but it can be compiled in most operating systems, including Windows.

With it, you can do much creative work on your video file. And in the following part, we will tell you three methods to combine MP4 files with FFmpeg.

1. FFmpeg Concat demuxer

This way works for MP4 files with the same codec and codec parameters (width, height, etc).

Step 1. First of all, put all the MP4 files which you want to merge together, in a file folder.

Step 2. Create a TXT file to record the files, by the command line dir. It will be named in default as mylist.txt. You can change it as you like.

Or you can also write the TXT file on your own with the same format, like,

file '1.mp4'

file '2.mp4'

file '3.mp4'

file '4.mp4'

file '5.mp4'

file '6.mp4'

Step 3. Combine all the MP4 files, by the command line,

ffmpeg -f concat -i mylist.txt -c copy output.mp4

combine MP4 files with FFmpeg Concat demuxer

2. FFmpeg concat video filter

What if the MP4 files do not have the same codec and codec parameters? You can try this Concat video filter way. But please note that this way requires re-encoding.

And here is the command line,

ffmpeg -i opening.mp4 -i episode.mp4 -i ending.mp4 \

-filter_complex "[0:v] [0:a] [1:v] [1:a] [2:v] [2:a] concat=n=3:v=1:a=1 [v] [a]" \

-map "[v]" -map "[a]" output.mp4

3. FFmpeg concat protocol

If your files are with formats like MPEG-1, MPEG-2 PS, and DV, then you can try this method. Please do not use it for MP4.

And here is the command line,

ffmpeg -i "concat:input1|input2" -codec copy output.mkv

Because FFmpeg is a command-line tool, for many computer novices, they may have some difficulties in handling it. So we would not like to recommend this MP4 joiner to them. If you are one of them, you can try the other tools.

Clideo - Online MP4 Joiner

Yeah, there are many people who are big fans of online tools. And how can we miss one for the MP4 Joiner? Here we recommend Clideo. Clideo is a platform with a bunch of cloud tools. And The one that we will use is called Merge MP4 Files by Clideo. There will be no installation package and registration required. You can just open the web page and start your job. And it is free. But the bad thing is that it has a harsh limit on the file size, no more than 500MB. So honestly, it is not a perfect choice for large and long MP4 files.

And here is how we use it for MP4 files merging,

Step 1. Open the tool in your browser.

Step 2. Click the Choose files button to import the MP4 files. You can add files from your computer, Dropbox, Google Drive, or even with a URL.

import mp4 files in Clideo

Step 3. After the files imported, you will be led to another page. You can directly move the clips on the timeline to change their sequence. On the right side, you can choose the aspect ratio and even add an audio file. After all settled down, just click the Merge button to start.

combine mp4 files in Clideo

People Also Ask about MP4 Joiner

Can Handbrake Merge MP4 Files?

No, Handbrake does not support multiple MP4 files combining. Handbrake is a super-powerful, free, and open-source digital transcoder for video files, compatible with many formats, and full with many basic video editing features, like resizing, cropping, deinterlacing, adjusting volume, adding video filters, etc. but you cannot use it to merge files.

How Can I Merge MP4 Files for Free?

As we have listed above, MP4Joiner, VLC, FFmpeg, and Clideo all can help users with merging MP4 files for free.

Which is the Best MP4 Joiner Software?

VideoProc. Because with it, you can combine multiple MP4 files in seconds. And its supporting all kinds of video formats enables users to concatenate any video file with any format. Besides merging, you can do more on your file, like rotating, flipping, cropping, adding text, etc.

Over to You

These are pretty much all the 5 best video joiner software, which we believe can totally help you get the MP4 combing job done easily. Did we cover all the things that you care about or the tool that you think is better than these ones listed above? If not, please tell us what you think about it.

About The Author

Cecilia Hwung is the marketing manager of Digiarty Software and the editor-in-chief of VideoProc team. She pursues common progress with her team and expects to share more creative content and useful information to readers. She has strong interest in copywriting and rich experience in video editing tips.

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