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Top 6 Ways on How to Make An MP4 File Smaller on Windows/Mac

by Christine Smith • 2022-03-31 09:33:16 • Proven solutions

When an MP4 video file takes up too much space on your hard drive or doesn't fit on the memory card for your portable device, you'll need to make MP4 smaller. In addition to that, you also need to make MP4 smaller when you're preparing them for web upload, since many online video sharing sites limit the video size you upload. In this article, you can learn the best way to reduce MP4 file size on Windows/Mac and the top 6 methods to make MP4 smaller online free.

Watch Videos to Learn How to Make An MP4 File Smaller on Windows/Mac

Part 1. How to Make MP4 Smaller on Windows

This article explains how to make MP4 smaller. With Wondershare UniConverter (originally Wondershare Video Converter Ultimate) - the all-in-one video compression software for compressing digital video files or DVDs, you can easily make your MP4 video smaller without any significant loss of quality. Moreover, this program provides a wide range of presets for most mobile devices and multimedia players, so they won't need a degree in video engineering to convert videos for playback on different devices.

Wondershare UniConverter

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  • Make MP4 files smaller without any quality loss on Windows/Mac
  • Compress MP4 by changing video resolution, bit rate, format, file size, video quality, and others
  • Edit the video files with trimming, cropping, cutting, merging, adding subtitles, etc.
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  • Versatile toolbox combines video metadata editor, GIF maker, video compressor, and screen recorder

Steps to Make an MP4 File Size Smaller on Windows:

Step 1 Add the Target Video Files

Download and install Wondershare UniConverter (originally Wondershare Video Converter Ultimate) on your computer. Then select the Video Compressor option from the given functions. You'll get a new interface to add MP4 files, click on the + icon to choose an MP4 video to compress.

add mp4 to compress

Step 2 Custom MP4 Compression Settings

From the new window, you can see your added MP4 video information. Select video resolution and format as you need, moving the progress bar to change bit rate and file size. You are allowed to check the video quality for 20 seconds by clicking on the Preview button.

customize MP4 video compression settings

Step 3 Make MP4 Smaller on Windows

You can choose the file location to save your compressed MP4 video by clicking on the file location option. Tap on the Compress button to start making an MP4 file size smaller. You can also follow the same steps on Mac. This method can only compress videos one-by-one, for batch compression, move to Part 2.

make MP4 smaller

Part 2. How to Make MP4 Files Smaller in Batch on Mac

One of the most popular formats used by people across the globe to view, upload, and send video files is MP4. There are no second thoughts about the fact that MP4 quality is good, but at the same time, it also occupies a huge space on your hard disk or memory card. Mac system is known for playing high-quality video, and when you have a huge collection of such videos, there are a lot of chances that you run out of space while adding more. Thus in such a scenario, reducing MP4 files to a smaller size is the best option to accommodate a few more of your favorite files. In addition to creating space, reducing MP4 to a smaller size is also beneficial in conditions when you need to upload files to YouTube or other video sharing sites, send files through email, playing it on a smartphone with a small screen, and others. Wondershare UniConverter for Mac is professional software that allows making MP4 smaller on Mac without any quality loss. Converting files to a smaller size is quick and easy through the software, and it comes packed with an additional list of features as well.

Steps to make MP4 files smaller on Mac using Wondershare UniConverter for Mac:

Step 1 Launch the program and add the MP4 file.

Launch Wondershare UniConverter for Mac on your Mac and drag the desired MP4 file into the software interface.

Make MP4 Files Smaller - launch the program

Step 2 Adjust video settings.

You need to select MP4 as the output format. Click on the Video Converter files to the icon to choose an output video format. Click on the Create button and a new window will pop up. Select the video codec and then adjust the other parameters like bit rate, resolution, and frame rate from the drop-down menu.

Make MP4 Files Smaller - choose mp4 format

Step 3 Compress MP4 files.

Finally, click on the Convert button to start compressing the MP4 file size. To compress all added MP4 files in batch, click on the Start All button. Once completed, the MP4 file will be compressed with set parameters. This method is also available on the Windows system if you need batch compression.

Make MP4 Files Smaller - start to convert

Part 3. 4 Free Methods to Make MP4 Smaller Online

Listed below are a few other methods that can be used for making MP4 smaller free or online with easy steps.

1. - Make MP4 Smaller Online Free (originally is the best online video compressor to compress your MP4 files quickly and without losing quality. It supports the most common video formats like MP4, MOV, AVI, WMV, MKV, etc. You can also change video formats, bit rate, and customize video size as you need. More important, it's free to use and don't need to download or install any software. Just open the website to compress MP4 smaller.

Make MP4 Files Smaller online free


● It is free to use and does not require the installation of software.

● It has decent compression speed.

● It supports other features like video converting, video editing, audio compressing, etc.


● It supports limited formats.

● It does not support batch processing.

● It can only work online.

2. VideoSmaller - Compress MP4 to Smaller Size Online

VideoSmaller is another online tool that allows you to compress video size, including MP4. You can scale video width using this online video compressor, reduce MP4 file size easily, and upload the video to the website with the browser directly. VideoSmaller online tool supports MP4, AVI, MPEG, MOV video formats for easy and quick size compression.

reduce MP4 file size online


● It is easy to use.

● It can reduce video size directly from your web browser.


● It supports only a few formats.

● It compresses one file at a time.

● It depends on the network connection.

3. Mp4Compress - Compress MP4 Video Files Online Free

Mp4Compress is a free and online MP4 video compressor that can compress MP4 videos to make them smaller without losing quality. You only need to select your MP4 file (max 500MB) and click the upload button to compress your MP4 video files quickly. Since the website is available for free, it does not support all video functions, but it offers the features of compressing videos, converting other formats to MP4, removing sound, stabilizing videos, resizing videos, and converting MP4 to MP3.

Mp4Compress Makes MP4 Files Smaller


● The interface is clean and easy to use.

● It can compress MP4 videos automatically.


● Videos cannot be edited.

● It supports MP4 files, up to max 500MB.

4. PS2PDF MP4 Video Compressor - Online MP4 video compressor

PS2PDF MP4 video compressor is a simple video compressor that lets you compress all your MP4 videos without limits. It is free to use and allows compressing MP4 files with a few simple steps.

Make MP4 Files Smaller


● It is easy to use with a simple interface.

● It supports parameters like video codec, file size, and method for compression purposes.


● The web page is populated with several ads that may annoy some users.

● It has no file sharing features.


Learn more about free MP4 compressors, and you can consider these programs.

Part 4. Why Choose Wondershare UniConverter

When it comes to reducing MP4 files smaller in size, converting files to different formats, and other related functions, there is a long list of software available. Though each of these tools has its pros and cons, if you are looking for complete professional software that allows converting and reducing files without any quality loss, Wondershare UniConverter is an apt choice. In addition to making changes to the settings of the MP4 file, the software can also be used to convert the file format to compress the MP4 files. It is available for Mac as well as Windows system and can be considered as the best MP4 video compressor owing to its features as listed below.

Wondershare UniConverter
Supported OS Be compatible with working on Mac and Windows system.
Compress MP4 with detailed settings Facilitates compressing MP4 files to a smaller size so that they can be uploaded on video sharing sites, sent through emails, and occupy less storage space. Allows setting bit rate, frame rate, resolution, and encoder of MP4 files to reduce its size.
Super Conversion Speed It can convert or compresses files at 30X faster speed without any loss of quality compared with other standard converters.
Video Editing Functions It allows personalizing MP4 files before compression. Supports multiple editing features with which you can rotate, trim, merge, crop, add watermark/subtitle, add special effects, change aspect ratio, and perform other functions on MP4 video files.
Compress MP4 in Batch There is no need for you to compress your MP4 files one by one as it supports batch processing of data so that multiple files can be compressed at a time.
Easy to Use Easy to use and simple interface and does not require any specialized technical or other knowledge
Compress MP4 with format and resolution optional Allows compressing MP4 files to formats and resolutions that are playable on Apple and other devices.
Burn to DVD Facilitates burning MP4 files to DVD if needed.


Now, you can make an MP4 video smaller by the mentioned-above ways. You can choose one of them to compress MP4 videos as your needs. However, for the best compression effect and user experience, Wondershare UniConverter (originally Wondershare Video Converter Ultimate) is the most recommended alternative to online video compressors.

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Christine Smith

Christine Smith

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