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Home > Movie Users>MP4 Compressor: Full Solutions to Compress MP4/MPEG/MPG Video on Windows & Mac

MP4 Compressor: Full Solutions to Compress MP4/MPEG/MPG Video on Windows & Mac

by Christine Smith • 2024-01-11 10:28:15 • Proven solutions

Are you sweating over to figure out a way to compress MP4 files for easily uploading, playing, sharing, or space-saving? A big MP4 video always causes trouble. It takes much space of your hard disk, which leads to the slow speed of your computer. It can't be saved successfully for entertainment on the go due to its flat body. It even curbs you to upload on the Internet or send it to your friends for sharing. Any way to shrink MP4 files?

If you are also facing these types of issues, then you can follow this guide to compress MP4 videos. We are going to share 6 workable ways to teach you how to compress MP4 files free online and on Windows/Mac.

Part 1. Best MP4 Compressor to Compress MP4 Without Losing Quality on Windows 10/Mac

Definitely, with an easy and powerful MP4 video reducer like Wondershare UniConverter (originally Wondershare Video Converter Ultimate), you're able to resize MP4 videos in no time with lossless quality and high compatibility (batch video compression supported). You can also make more changes like editing videos with Trim, Crop, Rotate, Subtitle, etc. Multiple methods can be found in Wondershare UniConverter to compress MP4 files. Wondershare UniCOnveter is a complete video toolbox, and it helps you to convert video, edit video, download videos, and more in easy steps. For example, you can convert videos to more than 1000 videos and audio formats, edit videos with trimming features, and so on.

Wondershare UniConverter

Security Verified. 5,481,347 people have downloaded it.
  • Easily compress large MP4 videos without any quality loss
  • Reduce MP4 files by customizing video settings like bitrate, resolution, frame rate, and more
  • Crop, merge, rotate, and split the video within the video shrinker
  • Fast conversion speed compared with other video converters on the market
  • Download videos from YouTube and other 10,000+ sites
  • It can also record videos, burn DVDs, or convert videos in just one click
  • Versatile toolbox combines video metadata editor, GIF maker, video compressor, and screen recorder

Steps to Compress MP4 With Wondershare UniConverter on Windows/Mac

If you're a Windows user, you can follow the common method to make video size smaller by customizing your video settings. You need to download and install Wondershare UniConverter firstly and then launch it. Also, Mac users can follow very similar steps too.

Step 1 Load MP4 videos to Wondershare MP4 compressor.

Open Wondershare UniConverter on your PC after installation, then move to the Video Compressor section and click the + sign to select your MP4 video.

choose video compress function

Step 2 Customize video setting to downsize MP4.

The added video information will be shown on the top panel, and you can adjust file size, video format, resolution, bit rate, and other parameters by moving the progress bar. You're allowed to check the video quality by clicking on the Preview button.

downsize mp4 by adjust settings

Step 3 Start MP4 compression.

When all settings have been completed, hit the Compress button, and let this program take care of MP4 compression. Now you can enjoy the compressed MP4 video anytime, anywhere!

You can compress one file at a time with this method, if you're looking for batch MP4 compression, read the part below and follow the steps.

Free Download Free Download


Move to How do I compress MP4 files on a Mac>> to learn more.

Part 2. Recommended MP4 Cutter for Mac to Compress MP4 Video File (3 Methods Available)

Speaking of how to compress MP4 videos on Mac, there are multiple ways available if you use Wondershare UniConverter for Mac. You can convert files in other small-sized formats, trim videos, or customizing video settings to compress MP4 videos. Below we will show you the detailed methods to fulfill it. Identically, you need to install the Mac version of the MP4 compressor on your computer first.

  1. Customize video settings, including resolution, bitrate, frame rate, and encoder
  2. Convert to small-sized video formats, such as FLV and WMV.
  3. Trim unnecessary part to downsize MP4 Video.

Method 1: Customize Video Setting to Cut Down Video Size

Step 1 Add the files to the MP4 reducer.

This solution allows you to compress the video size by changing the quality of the video before converting it. Add your files which you want to compress. You can add files by clicking on Add files button or by dragging and dropping way. Multiple videos can be added here.

 Add the files to the MP4 video compressor Mac

Step 2 Customize the video setting and convert the MP4 video.

Just like the Windows version, click the drop-down icon of the Output Format and go to Video > MP4, click the Editing icon beside one of the presets to enter the Setting window. In the window, you can manually adjust the settings like resolution, bitrate, frame rate, encoder. Then click Create to proceed with shrinking the MP4 video.

Customize the video setting and convert MP4 video with the Mac video shortener

  • Encoder: Click the arrow to access drop-down options, then choose one, or just let it as default.
  • Resolution: 240*160, 320*240,480*272,480*368,640*480, and more. If you want to play on iPod, iPhone 7/iPhone 7S, PSP (including PSP3), 480*272 works great.
  • Frame Rate: You can choose from different values to slow down or speed up your playing speed. Generally, the value above 20 makes little difference.
  • Bit Rate: Value range: 256kbps to 2000kbps, choose a proper one as you need.

Method 2: Convert MP4 to a Smaller-Sized FLV/WMV

This way also helps you to compress MP4 file size. Usually, the MP4 files are there in big size, but FLV will be there in a small size. So you can convert MP4 files to FLV or WMV.

  1. Adding files to the Wondershare UniConverter.
  2. Choose FLV or WMV from the format window. You can select any small-sized formats as the output format to compress video.
  3. Click on the Convert All button to start MP4 video compression.

compress MP4 on Mac -  Customize the video setting and convert MP4 video

Method 3: Trim Unwanted Part to Downsize MP4 Video

Trimming solution also works perfectly when you need to compress MP4 video size. You only need to cut the unwanted segment.

Step 1: Add MP4 file to compress in the software interface, then just click on the Trim icon which is under the video thumbnail.

Step 2: Now in the trimming editing window, click the Cut button to choose the start time and the end time which you want to cut. Now click on the Delete button to delete the unwanted segment, check the Merge All Segments, and then click OK to preserve the trimmed video. If you are not satisfied with the trimmed video, then you can click the Cancel button anytime.

compress MP4 on Mac-cut the MP4 video

Step 3: After setting up everything, choose MP4 as the output format, and click on the Start All button.

compress MP4 on Mac by converting the cut video

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Part 3. 4 Optional Tools to Compress MP4 Free

Wondershare UniConverter is a comprehensive MP4 compressor tool for both Mac and Windows operating systems, but there are other programs that can compress your MP4 files free. We will discuss the top 4 free MP4 compressors as below.

  1. Wondershare Free Video Converter
  2. Windows Movie Maker
  3. Any Video Converter
  4. VSDC Video Converter

1. Wondershare Free Video Converter

As the free version of Wondershare UniConverter, Wondershare Free Video Converter can also compress MP4 file size easily. You can also adjust the parameters like format, resolution, bitrate, codec, and more others. This free MP4 compressor also supports a list of functions such as video editing, video downloading, DVD burning, video converting, etc. Just FREE DOWNLOAD and follow the similar steps in Part 1 to compress MP4 free on Windows/Mac.

best free mp4 compressor

Free Download Free Download

2. Windows Movie Maker

This application makes it easy for you to compress the MP4 file, all you need to do is launch software and then import the MP4 file to be compressed. The compressed file still retains the quality of the original file. The application is only available to Windows users and comes with Windows Vista and XP. If you use Windows 7 upward, you can download the app for free. Review by PCMag

compress MP4 with Windows Movie Maker

3. Any Video Converter

This online video size reducer is ideal for those who want more options for compression of videos. It compresses and converts the resultant file to many formats, including MP3 and other formats supported by mobile devices. So, this is a great video compression tool to compress MP4 videos. Review by TechRadar

compress MP4 with Any Video Converter

4. VSDC Video Converter

This movie compressor is great especially for mobile users who do not need the high resolution of large MP4 files. The duration of compression of this tool is great and there are a lot of output formats to be selected. It is great for those who wish to compress MP4 files for mobile gadgets. Review by PCWorld

compress MP4 with VSDC Video Converter


If you're looking for more free MP4 compressors for Windows and Mac system, just go to the Top 5 Best Free MP4 Video Compressors >> to learn more.


Looking for more online tools to compress MP4 files? Go to Top 4 Online MP4 Compressors >> to learn more.

Part 5. Comparison Table of the 6 MP4 Compressors

We will be looking at these 6 MP4 compressors mentioned above and compare them using the metrics like supported output formats, quality of the resultant file, supported input formats, a feature to convert MP4 to other formats, etc. so that you can know which one would be the ideal choice.

Software name Wondershare UniConverter Wondershare Free Video Converter Windows Movie Maker Any Video Converter VSCD Video Converter
Supported input format 1,000+ formats, mostly all the regular formats Almost all regular formats WMV, MTS, M2TS, AVI, MOV, MP4, ASF, WM, MPEG, WMV, H264, MP4, MP3, AVI, MOV and WMA MP4, MPEG, VOB, WMV, 3GP, 3G2, MKV, MOD, M2TS, RMVB, AVI, MOV, FLV, F4V, DVR-MS, TOD, DV, MXF, OGG, WEBM DVD, AVI, MPEG, WMV, ASF, FLV, SWF, MOV, MP4, M4V, RM, RMVB, 3GP, AMV
Supported output format 1,000+ formats, mostly all the regular formats Almost all regular formats MPEG, WMV, H264, MP4, MP3, AVI, MOV and WMA WMV, MPG, MP4, AVI, ASF, M2TS, 3GP, 3G2, FLV, MKV, SWF, WEBM, HTML5 WEBM, HTML5 OGG, HTML5 MP4 MPEG, WMV, H264, MP4, MP3, AVI, MOV and WMA
Quality after compression High High Medium High Medium
Convert MP4 to other formats Yes Yes No Yes Yes
Compress MP4 by trimming videos Yes Yes No Yes No
Burn MP4 to DVD Yes Yes No Yes No
Download MP4 from YouTube and other sites Yes, 10,000 sites supported. YouTube Not supported Yes, 100+ sites supported. Not supported
Convert MP4 by customizing video setting Yes Yes No Yes No
File Size Limitation No limitation with batch files compression No No No No

Wondershare UniConverter will be your best choice if you want to find an MP4 compressor that will help you compress MP4 videos easily and quickly without losing any quality. FREE DOWNLOAD and follow the guide above to have a try!

Free Download Free Download

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Christine Smith

Christine Smith

chief Editor

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