MP4 is the most widely used video format and all of us have a huge collection of these files. Several times, the need to join MP4 arises like when you have downloaded different episodes of your favorite series from different channels and want to combine into a single video or combining multiple holiday videos into one, and others. To accomplish the combining task in high quality and in a hassle-free manner, professional software must be used. If you too have been struggling with good software to combine MP4 files, no worries as we will help you to know the best ones in the category.

When it comes to video-related tasks, Wondershare UniConverter works as the best software. This feature-packed program has a user-friendly interface and comes with a wide range of functions. A dedicated merging function is present in the software using which MP4, as well as files in all other popular formats, can be added and combined into a single video.

The files to be merged can be added from your computer, devices, as well as from the DVDs and Blu-ray discs. Multiple files as needed can be added to the interface and there is also an option to trim them to remove the unwanted video parts.

The output format and the resolution of the merged files can also be selected as desired.

UniConverter

Convert files in over 1000 formats including MP4, MOV, FLV, and others.

Batch processing to convert multiple files at a time. The software can convert even 100 files at a time without any issues.

Lossless quality conversion.

Built-in editor to customize files using features like crop, trim, add effects, and more.

Video download from over 10,000 sites supported with video recording.

Additional features supported like fixing metadata, compression, image conversion, and more.

Windows and Mac support with support OS version support added regularly.

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Steps on how to combine MP4 files using Wondershare UniConverter:

Run the software and choose the Merger function from the main interface. Click on the Add Files icon or the + icon to browse and import the MP4 videos to be combined.

The added files will appear on the interface. You can click on the Trim button next to the added files to open a pop-up window from where unnecessary video parts can be removed. The target format and the resolution for the combined files can be selected from the Output Format tab.

Choose the system folder to save the merged file at the File Location tab. Finally, tap on the Start All button to start combining the added MP4 files. The combined files on the interface can be checked from the Finished tab.

In addition to the merging, Wondershare UniConverter supports a wide range of other functions. Some of these widely used ones are as below.

Using the software, the conversion of files in over 1000 formats can be done in lossless quality. An array of devices specific profiles are also supported by the software. Batch processing is supported and the entire converter process is hassle-free and very fast (30X faster conversion speed). The files to be converted can be added from the local system or directly from the devices as well. There is also a built-in editor that allows you to customize the files using features like crop, trim, cut, add watermark, add effects, and more.

The compress feature of the software comes in very handy when you want to reduce the file size without considerable quality loss. The software supports almost all file formats and selects the ideal compression settings for reducing the file size. You can also customize the settings as needed by changing their resolution, size, and bitrate.

To convert your videos on your system to a DVD or a Blu-ray disc, Wondershare UniConverter is an excellent tool. The DVD burning feature of the program allows adding multiple files in different formats for burning them onto a disc in high quality. Several templates with different designs and customization options are available to make your DVD look professional.

When you want to record the live session on your system, skype calls, audio calls, or any other system activity, the record function of the software is of great use. Wondershare UniConverter helps in recording the screen, webcam, as well as system audio in high quality.

To combine MP4 and other files for free and without installing any additional software online tools are best. Online UniConverter is one such reputed tool that works from your Windows and Mac browser. The online merging function of Online UniConverter allows adding videos up to 100MB from your local system, Google Drive, and Dropbox. You can also add the YouTube link to add the video.

You can crop the added files, choose the aspect ratio from the given options, and also select the target output format. Option to choose the transition and background music is also there.

Steps to combine video files using Online UniConverter:

Open https://www.media.io/merge-video.html and click on the Merge tab. Click on the Choose Files button to add the local videos to be merged.

After the files are added, choose the aspect ratio, crop it if needed, select the transition, and use Audio Options to add the background audio.

At the Output format, select the desired format for the combined file. Finally, click on the MERGE button for the tool to start combining the added files.

After the process is complete, the merged file can be downloaded locally or can be saved to cloud storage.

Wondershare UniConverter is an excellent tool for combining multiple video files as well as for other video-related functions like conversion, download, recording, DVD burning, editing, and more. The online version of the software can be used when only a few small-sized files have to be combined in a simple quick manner for free.