Software Tips & Tutorials

Home > MP4 > Compress MP4, Reduce MP4 File Size

MP4 Compressor: How to Reduce MP4 File Size without Losing Much Quality on Windows (10)

MP4 compressor is badly needed to make large (GoPro) MP4 smaller, for uploading to YouTube, Instagram, sending to others via email, or space saving, etc.

MP4 is surely the NO.1 mainstream container format used both online and offline. If you have piles of commercial or homemade MP4 movie/music videos on your hard drive or memory card, and would like to reduce MP4 file size to free up some storage space, to upload relatively smaller MP4 videos to web, because many video sharing sites or social media channels limit the video size of MP4 footage you upload, to send to others via email, or just for playing on portable devices smoothly, this tutorial relevant for How to Reduce MP4 File Size with free MP4 compressor must fit the bill.

Your First Choice for Reducing MP4 File Size on Windows 10

WinX Free Video Converter, the best free (MP4) video compressor, is able to reduce the file size of any MP4 video, be it H.264/AVC MP4, GoPro HEVC/H.265 MP4 or so. Free download it to compress big-sized 4K/1080p/8K MP4 fast and free now!

Two Easy Ways to Reduce MP4 File Size

Way 1 - Reduce MP4 File Size by Adjusting Video Parameters
Reducing MP4 file size (such as compress 4K to 1080p video) by resetting its parameters depends on the following elements: codec, bit rate, frame rate, resolution and the container, which together distribute the video file size.

Reduce MP4 File Size

Resolution: The lower width*height/resolution is, the smaller MP4 video will be. (with other parameters unchanged)
Bit rate: Setting lower bit rate can achieve smaller video size. But please don't make it too low, otherwise the image quality can be really bad.
Frame rate: Just like bit rate, lowering frame rate (e.g from 60fps to 30fps) shrinks video size to a certain degree.
Video codec/container: Although H.264 is the best codec for MP4 compression, converting MP4 to other format with smaller file size is workable. FLV and WMV formats are considerable, especially FLV (for uploading to web).

Facebook Supported Upload Video Formats | YouTube Supported Upload Music Video Formats | Compress video for Instagram

Way 2 - Reduce MP4 File Size by Trimming/Cropping Video
This is a conservative way to compress MP4 video by cutting unnecessary part off, remaining less video content with the original quality, or cropping annoying black bars for playback video in full screen.

Top Free MP4 Compessors for Reducing MP4 File Size on Windows 10

WinX Free Video Converter

Supported OS: Microsoft® Windows 98/NT/2000/2003/XP, Windows Vista/7/8/8.1/10 (32 & 64 bit)
Download Link:

Reduce MP4 File Size by WinX Video Converter

WinX Free Video Converter is 100% free and clean software to fulfill common video conversion needs, especially for those newbies who are not so skilled with software or computer. It has two versions for both Windows and Mac OS X, helping you compress MP4 in a more stable way than HandBrake, and more convenient than Windows Movie Maker. Let's take a look at the three ways it offers to shrink/reduce MP4 file size:

* Choose "MP4 Video (AAC/MP3)" at PC General Video or FLV/WMV etc., place the scroll bar to "LQ/Fast".
* Open "Setting" window to adjust the listed video audio parameters like resolution, aspect ratio, bit rate, frame rate.
* "Edit" function features well in video cropping, trimming, deleting the unwanted video content and black bars from the sides for reducing MP4 file size with no quality sacrifice at all. After that, click "RUN" button to start the MP4 down-sizing.

"I will have MP4 videos ranging in size from 3 GB to 4.5 GB and will need to compress them down to 500 MB in order to be able to load them on Vimeo. I downloaded your program last night and converted a MP4 video that was 441.6 MB in size and it was 161.5 MB after converting it. That works out to 36.57%." - feedback from WinX user

Note: The data in feedback is not generalizable to all MP4 reducing cases. Because the results vary from source MP4 videos, compressing ways, the computer properties etc.


Supported OS: Windows 7 to Windows 10
Download Link:

Reduce MP4 Video File Size with HandBrake

Handbrake is a totally free open-sourced video transcoder, that you can turn help for compressing MP4 on Windows (and Mac/Linux). After opening the source MP4 file, you just need to choose "High Profile" in the right drawer, and then resize the resolution or crop video under "Picture" option, set the video framerate/quality and optimize video to define the video size. Definitely the lower quality/faster converting speed you set, the smaller MP4 video size you'll get.

Note: If you want to compress MP4 to FLV or other formats or you need full pre-settings about video quality, resolution and bit rate, which will save you much time, Handbrake is not a good choice for you.

>> HandBrake Cropping (MP4) Guide
>> HandBrake Windows Tutorial
>> HandBrake Mac Tutorial
>> HandBrake Video Quality Settings
>> HandBrake Speedup Ideas/Solutions

Windows Movie Maker

Supported OS: Windows 7, Windows 8, Windows 8.1, Windows 10 (Included with Windows ME/XP/Vista)
Download Link: It is no longer available for download on Microsoft official site since January 10, 2017.

Reduce MP4 File Size by Windows Movie Maker

Windows Movie Maker is a free video editing tool (included in Windows Essentials) of Microsoft for Windows 7, 8 and Windows Server 2008 R2. However when you upgrade those OSs to the latest Windows 10, it will be removed, which means you have to download Movie Maker and reinstall it on Win10 again if you wanna use it. (For Mac users, iMovie is a similar way to go.)

Downsizing MP4 file size is quite easy by Windows Movie Maker:
Open up it -> browse and open your source MP4 video -> Save movie to a specific device with small/resolution/only audio option or Create custom setting to fine tune the video width/height/bit rate/frame rate and audio kbps/kHz.

Also, kindly note that in Movie Maker, you have the option to save your file as a project file - a format that owns quite smaller file size, because all it contains are the file names, the list of edit points etc., no actual video, photos or music at all.

See also: Fix Movie Maker Won't Work/No Sound etc. Errors | Import DVD to Windows Movie Maker | Convert MKV M2TS to Windows Movie Maker

Still have trouble on how to reduce MP4 file size on Windows (10) PC with any one of those free MP4 compressor, just feel free to Mail Us >>

Compared to WinX Free Video Converter, advanced WinX HD Video Converter Deluxe reduces MP4 file size better in all aspects:
Level-3 hardware acceleration support improves the video resizing speed to 16x faster than common tools.
Thanks to hardware processing, the source MP4 video can be shrinked with highest possible quality remained.
More practical features like MP4 video editor, MP4 video cutter, MP4 video cropper, MP4 video merger etc.

Purchase benefits: Lifetime full license and free upgrade. 30-day money back guarantee. BUY Now only $35.95 (save $14)

Please feel free to share this tutorial if you think it is helpful!

Search more video audio solutions and guides:

Home | About | Site Map | Privacy Policy | License Agreement | News | Contact Us | How-tos

Copyright © 2019 Digiarty Software, Inc. All rights reserved

Any third party product names and trademarks used in this website are property of their respective owners. All the related logos and images, including but not limited to Apple's iPhone®, iPod®, iPad®, iTunes® and Mac® are registered trademarks of their own. Digiarty Software, Inc. is not owned by or affiliated with Apple Inc. and any of those companies.
Reduce Compress MP4 File Size on PC/Mac with WinX Free Video Converter.