by Christine Smith • 2020-04-28 20:50:59 • Proven solutions

Free MP4 video converter is very useful and convenient for video to mp4.Free MP4 Video Converter Factory is a useful Video to MP4 Converter that can convert various video formats to MP4 video, and it is an all-in-one video to MP4 devices converter, can convert video to iPad, iPod, iPhone, Apple TV, BlackBerry, PSP, PS3, Sony Walkman and other MP4 players.

Need for resizing MP4 videos arises due to a number of situations like sharing files over online sites, transferring videos through mail, managing storage space, and many others. Resize MP4 is not a difficult thing as there are many professional tools to compress MP4 videos with easy steps. However, which one should you choose so that the MP4 video can be compressed without any losing quality? Here lists the top 5 online tools to resize MP4 video available, and the best solution to resize MP4 on Windows/Mac.

Part 1. Best Way to Resize MP4 Videos Without Losing Quality

To resize MP4 videos in lossless quality and at fast speed, we recommend Wondershare UniConverter (originally Wondershare Video Converter Ultimate) as an ideal tool. This desktop software once installed on your system allows resizing an array of video formats in a simple manner by changing its size, quality, resolution, and bit rate. The Preview feature of the program facilitates checking the quality of the processed video file. Windows and Mac version of the software is available for free download. You'll find many bonus features related to videos like video downloader, DVD burner, screen recorder, and others after installation.

Wondershare UniConverter - Your Complete Video Toolbox for Windows/Mac

• Resize MP4 videos by changing video size, resolution, quality, bit rate, format, and other parameters.
• Support 1000+ video formats for MP4 compression and conversion with super fast speed and no quality loss.
• Edit videos by cutting unwanted parts, adding watermarks, applying effects, editing subtitles, etc.
• Check video quality before resizing with real-time preview.
• Support batch process to resize MP4 on Windows/Mac.
• Download YouTube videos and playlist to MP3 or other audio formats by pasting URL.
• Transfer compressed audio files from PC/Mac to iPhone/Android devices via a USB cable.
• Toolbox with additional functions like Screen Recorder, GIF Maker, Fix Media Metadata, Cast to TV, etc.
• Supported OS: Windows 10/8/7/2003/Vista/XP, Mac OS 10.15 (Catalina), 10.14, 10.13, 10.12, 10.11, 10.10, 10.9, 10.8, 10.7, 10.6.

Steps to Resize MP4 Video Using Wondershare UniConverter

Step 1 Run Wondershare MP4 Resize Tool and Add MP4 Video

Launch Wondershare UniConverter (originally Wondershare Video Converter Ultimate) on your PC or Mac. Select the Toolbox tab from the main interface and click on the Video Compress option. A new window will open where you need to click on the+ sign to browse and add the desired MP4 video from your system.

Step 2 Choose Settings to Resize MP4

The program interface will show all the details of the added video. To resize video, you can change the file size, video format, resolution, quality, and bit rate directly. A progress bar is also available that you can simply move to change the compression percentage that will automatically change the file parameters accordingly.

Step 3 Preview and Resize MP4 Video on Windows/Mac

To see the changes that will be made to the video after resizing, click on the Preview button. Select desktop location to save the processed file at Save file: location. Finally, click on the Compress button to start video resizing process.

Tips

If you want to edit the MP4 videos with trimming and cropping before resizing, or compress MP4 videos in batch, just move to the How to Resize MP4 Videos in Batch >> section to know more details.

Part 2. Top 5 Online Tools to Resize MP4 Online

A number of online tools to resize MP4 online are available in this part. Online MP4 resize tools are easy to use and need no download or installation. Listed below are the top 5 in the category.

1. Online UniConverter (originally Media.io)

This is one of the most popular tool to resize MP4 online. The program is compatible working with Windows and Mac and need no software download. The added MP4 videos can be resized to share with Instagram, Facebook, Youtube, and other social networking platforms. The output format of the file can also be changed to the popular ones using the tool. Online UniConverter allows changing video resolution and the size as needed from the given list of options. The processed file can be directly downloaded from the interface itself.

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Pros:

• Supports popular video formats for resizing.
• Allows saving the processed file to Dropbox.
• Facilitates video conversion.

Cons:

• Limited features.
• Dependent on internet.

2. EZGIF

This online video resizing tool supports all popular formats including MP4, MOV, WebM, and others. Using the program you can either resize a local video present on your PC or also add a URL from online site. Maximum of 100MB file size is supported for resizing. Once the video is uploaded to the interface of the program you can edit its width and height to resize the same. The percentage of the compression can be also selected. The processed file can be downloaded from the interface.

Pros:

• Supports all major formats for video resizing.
• Simple interface.

Cons:

• Maximum of 100MB file support.
• Only height and width can be changed.

3. KAPWING

This is a feature packed online tool that allows resizing MP4 as well as other popular formats. There are a number of options available for file resizing. There are fixed file parameters available for resizing your videos to fit Instagram, YouTube, Facebook, IGTV, Story or Snapshot for Instagram, and Facebook Cover. You can choose to crop or not to crop the video as needed. The background image can be kept as black or White. There are options to choose the zoom percentage and the position of the video as well. Unwanted parts of the video can also be trimmed.

Pros:

• Multiple presets available for resizing videos to social networking sites.
• Allows trimming videos.
• Option to crop and choose background color.

Cons:

• Network dependency.
• No batch processing.

4. VideoSmaller

Using this free online tool you can reduce and resize the MP4 and other video formats without losing quality. The videos captured from smartphone can also be resized using the program. Maximum of 500MB file size can be added to the interface. There is option for scaling the video if needed. A mute video by deleting audio from the video file can also be created when needed. Low compression video resizing can also be selected to get the best quality videos.

Pros:

• Option to choose video width.
• Free to use and simple interface.

Cons:

• Maximum 500MB file can be added.
• Limited control over choosing file parameters.

5. Resize Video Online

Using this decent online program MP4 and other video files can be resized and reduced in size while retaining the aspect ratio. The files can be also resized and cropped in order to fit a particular screen size. If needed black borders on the top and the bottom can also be added. The interface of the program is simple and the conversion speed depends on the internet bandwidth.

Pros:

• Allows resizing videos without changing aspect ratio.
• Width of the video to fit screen size can be adjusted.

Cons:

• Dependent on internet connectivity and its bandwidth.
• Limited features.

Part 3. Why Choose Wondershare UniConverter to Resize Video

Above listed are different types of tools to resize MP4 video online as well s offline. Depending on what are your requirements, you can pick the most relevant one. To help you choose the best program given below is a comparison table.