VideoProc Converter AI

Best Video Compressor Software for Windows & Mac

  • One-click to compress 1080P/4K/8K video size by over 90%
  • Directly specify target size for fast compression (for Discord, email…)
  • No visible quality loss with High Quality Engine and x265 encoding
  • Support 370+ formats; No size limit; 47x faster speed; 2% CPU usage
  • Download/convert/edit videos. New AI features to enhance videos!
Video Tutorial: How to Compress Video

17 Best Video Compressors for Windows and Mac (Compared with Real Test Data)

By Cecilia Hwung | Last Update:

Looking for the best video compressor for Windows or Mac that lets you compress MP4, AVI, MKV, MOV, and more types of files effortlessly? Whether you are sharing a video recording with your friends via social media, freeing up the space on your iPhone, or sending a long MP4 video by mail, compressing the original video file with paid or free video compression software is a must.

With that in mind, I've collected the best video compression software for Windows and Mac computers, as well as the best online video compressors for Chrome, Firefox, and other browsers. Some of them can even compress 8K/4K/1080P HDR videos, which often captured by popular devices like DJI drones, GoPro cameras, DSLRs, and iPhones, from gigabytes (GBs) to megabytes (MBs) without visible quality loss.

To help you quickly find the best video compressor that meets your compression needs, I've run down some of the most standout features, video compression performance (with real test data), cons, and pros of each video compressor.

What Is a Video Compressor

A video compressor is an open-source (free) or commercial (paid) program with the capability to make a video smaller in size by specifying the target video size/compression ratio or changing the encoding settings, format, resolution, and other properties. Most of them can handle the compression of popular video and audio formats, such as MP4, MKV, AVI, WebM, FLAC, and OGG. According to some surveys, you can find there are generally 3 types of video compressors in the market.

Video Compressors Overview

Best Video Compressors Quick Comparison (Real Test Data)

1. Comparison of Desktop Video Compressors

Most desktop video compressors feature a variety of video formats and can custom various video properties. The compression ratio and final picture quality depend on users' understanding of codec and compression. But some incredible user-friendly programs, like VideoProc Converter AI, also allow you to define the target compression ratio, file size, or picture quality grade to achieve the desired compression. Thus, when choosing the best video compressor for Windows or Mac, bear in mind that the rich presets and self-explained UI also matter aside from the compression rate and the processing speed.

I compared the ease of use and presets, and tested their compression ratio, performance, CPU usage, and other important features with the below two video clips.

  • Clip 1: MP4(H.264), 5 min 46 s, 9 489 kb/s, 1920 x 1080, 30FPS, 391MB
  • Clip 2: MP4(HEVC), 37 s 205 ms, 80.0 Mb/s, 1920 x 1080, 240FPS, 355MB

Here's what I found:

Overview Test

Video compressors


Clip 1 (save size | process time)

Clip 2 (save size | process time)

Picture quality

CPU usage (the lower, the better)

VideoProc Converter AI 👍

78% | 02:29min

96% | 02:05min

No visible loss


Freemake Video Converter

59% | 06:41min

95% | 05:38min



VLC media player

90% | 14:16min





87% | 06:47min

93% | 04:14min

Relatively good


Shutter Encoder

48% | 09:19min

94% | 07:17min




60% | 05:32min

78% | 02:29min



Any Video Converter

77% | 02:52min

88% | 01:59min



QuickTime Player

59% | 02:23min

93% | 04:14min




32% | 03:48min


Relatively bad


Windows Movie Maker

63% | 02:55min

94% | 00:57mim

Relatively good



87% | 03:17min

94% | 01:37mim

Relatively good


2. Comparison of Online Video Compressors

Online video compressors enable you to compress videos from the browser without installing third-party software. They heavily depend on your network environment, typically provide output in MP4 format, and impose strict restrictions on video size and quantity. Thus, from my experience, they should be the last thing you want to consider. Not put off by these limits and stick to using an online video compressor? Well, bear in mind that the one that accepts a larger video and goes compatible with a raft of video formats is always better to go.

I compared the size and format limitations of the best 5 online video compressors and tested their compression ratio, performance, and other important features with the below two short video clips.

  • Clip 3: 32.7MB, 49 s 132 ms, 4 820 kb/s, 1980 x 720P, MPEG-4 Visual, MOV
  • Clip 4: 44.1MB, 34 s 480 ms, 10.7 Mb/s, 4090 x 2160P, H.264, MP4

Here's what I found:

Online video compressors Ratings Support most formats Size limit Process time | save size Picture quality



Clip 3-02:24min | 46%
Clip 4-03:48min | 45%


Online Convert


Clip 1-03:39min | 70%
Clip 2-05:48min | 57%




Clip 3-failed
Clip 4-03:34min | 72%




Clip 3-03:05min | 78%
Clip 4-04:05min | 84%




Clip 3-Failed
Clip 4-Failed


Best Video Compression Software for a Desktop

1. VideoProc Converter AI

  • Overall best: reduce 90% video size, directly specify the target size, no noticeable quality loss, instantly make your large videos sharable on social media platforms and messenger apps...
  • Can compress 👍 MP4, MKV, AVI, MOV, VOB, 4K, HEVC, 120FPS, 10/12bit HDR, ProRes, and 420+ other formats
Free Download For Win 7 or later
Free Download For macOS 10.13 or later

Note: The Windows version now supports AI-powered Super Resolution, Frame Interpolation, and Stabilization to enhance video and image quality. These AI features are not yet available in the Mac version but will be coming soon.

Supported OS Compression ratio Compression speed Top-notch quality Expert rating

Windows, Mac


Up to 47x faster

20 by OneHourProfessor
Best Picture Quality

Frankly speaking, VideoProc Converter AI is currently the best video compression software for Windows and Mac. With a single click, you can compress video files by 90% without any visible loss in quality.

Its built-in compress tool enables you to compress a video file into whatever size you like without hassles. You can directly enter the target file size or adjust the compression ratio using a slider. The slider enables you to select any value between 10% and 100%, giving you complete control over the compression ratio. For instance, to compress a video to 10% of its original size, just move the slider to 10%.

This powerful video compressor also provides a few more efficient methods to make your video smaller, including converting to a more efficient codec, decreasing the frame rate, downsizing the resolution, increasing the GOP length, and more.


  • Incredible easy: directly specify the target video file size
  • Decrease the video size from GBs to MBs in a click
  • Offer all compression methods to make your videos smaller
  • No visible quality loss. Adopt the latest x265 encoding tech
  • Allow refined and flexible control for audio & video properties
  • 47x faster, powered by the full GPU acceleration tech
  • Full-featured editing suite: deshake, denoise, rotate, trim...
VideoProc Video Compressor


  • Specify the target size directly
  • Support 370+ input formats
  • Flexible ways to control quality and size
  • Remain the original picture and sound quality
  • Estimate the video size before you export it
  • Fastest compression speed
  • The best UHD HD video converter


  • So far, I see nothing bad with it
Free Download For Win 7 or later
Free Download For macOS 10.13 or later

Note: The Windows version now supports AI-powered Super Resolution, Frame Interpolation, and Stabilization to enhance video and image quality. These AI features are not yet available in the Mac version but will be coming soon.


VideoProc Converter AI can compress dozens of large 4K videos into a few megabyte files within minutes. During the short compression process, I had no problem to use Premiere Pro and other programs that devour tons of space.

It's also rated as the NO.1 best video compressor by, TheSweetBits, and many famous sites.


2. Movavi Video Converter

  • Best video compressor with extra editing tools
  • Can compress to 180+ popular video, audio, and image formats
Supported OS Compression ratio Compression speed Top-notch quality Expert rating

Windows, Mac

Around 85%

Up to 79x faster

by G2

Movavi Video Converter

Movavi Video Converter delivers a great compression performance and preserves the original video quality. The software allows you to compress videos in various formats such as AVI, MP4, MOV, and more. Moreover, it also has presets for popular devices like iPhones, iPads, Android devices, and even TVs and consoles.

A great feature that I liked is the option to compress just a small sample of the video to check for quality. This ensures that you are satisfied with the compression and can make adjustments without wasting time compressing the entire video.

And as for the adjustments, apart from the regular aspect ratio, resolution, and bitrate settings, you can do this in the built-in editor. This includes features like cropping, adding subtitles and watermarks, applying filters, and more.


  • Batch conversion
  • SuperSpeed mode to quickly compress videos of the same format
  • Device-specific presets available
  • AI Upscaling to enhance the quality of low-resolution videos by up to 8x
  • Supports Intel hardware acceleration for faster processing


  • Beginner-friendly, intuitive interface
  • Supports 180+ formats
  • Fast compression speed
  • Preview option
  • Free trial available


  • The trial version adds a watermark and includes a couple of other limitations
  • The conversion speed may be slower for older devices or low-end computers


Movavi Video Converter offers a great balance between ease of use and advanced features for video compression. It’s suitable for both beginners and professionals, offering plenty of customization and supporting a wide range of formats. During my testing, it maintained good video quality and the compression speed was fast. However, the users who have a weaker computer will definitely notice performance issues when trying to do other tasks while the software is running.

3. Freemake Video Converter

  • Best free video compression software that can create slideshow videos
  • Can compress popular video and audio formats
Supported OS Compression ratio Compression speed Top-notch quality Expert rating

Windows 10/8/7

Around 80%

Relatively slow

by TopTenReview

Freemake Video Converter

Freemake Video Converter is one of the best free video compressor for Windows (earlier versions like Windows 7) and it used to be my favorite pick. However, it hasn't received any update since 2017. Many new but important features are missing in this phased-out video compression software.

Here I take some examples. It's hard to set a high video or audio compression ratio in Freemake Video Converter. H.265 and VP9 are not supported. It provides you with some presets, but only matches with iPhone 5, iPhone 4, and things before 2017. Freemake Video Converter doesn't support adding customize watermark. However, it does add a prominent Freemake logo to the output file. To remove this logo, upgrading to the premium account is necessary.


  • Compress videos by setting the output file size
  • Preset output profiles for Samsung, Nokia, and BlackBerry
  • Make photo slideshows. Add SRT/ ASS/SSA subtitles
  • Rip and burn home or unprotected DVDs


  • Easy interface


  • Mac users can't make utilization of Freemake Video Converter
  • Lack of preset for recent devices
  • Frequently crashes
  • The final video comes with a big Freemake watermark
  • HEVC, VP9, and many popular formats are absent
  • The anti-virus program reminds me Freemake Video Converter is bundled with malware


Freemake Video Converter seems to have some incompatible issues when compressing ultra-high resolution videos. I tested 10 clips of 4K videos and 15 clips of 8K videos on it. The testing videos come with length from 1:30min to 3min. Everytime, this free video compressor for Windows got stuck when finished the process of 60% to 85%.

4. VLC media player

  • Best free video compressor software that can play 4K large videos smoothly
  • Can compress AVI, ASF, WMA, MP4, OGG, VOB, MP3, FLAC, and more
Supported OS Compression ratio Compression speed Top-notch quality Expert rating

Windows, Mac, Linux, Android, etc

Around 85%


by TechRadar

VLC Video Compressor

Unbeknownst to some, the VLC media player is a cross-platform and multiple media player on Mac, Windows, and Linux that does more than play videos and music. It can also serve as one of the best free video compression software for reducing the file size of MP4, AVI, MKV, and MOV videos.

On the plus side, this full-featured tool provides you with ready-make options, like H.265 + MP3, H.264 + AAC, and you're on your own to decide the desired video codec, audio codec, frame rate, bitrate, and other properties.

However, the compressed videos sometimes have A/V out-of-sync and black screen issues. Too many important features are hidden in the menu, making it one of the most sophisticated video compressors.


  • Adjust encoding parameters to reduce video size
  • Play stream media, 4K videos, and lossless audio files
  • Rip and burn unprotected DVDs
  • Useful filters: motion blur, crop, distort, etc


  • A wide range of input formats
  • Lower CPU usage rate when compared with most freeware


  • Slow video compression speed
  • Difficult jargon


VLC media player's capability to compress large videos surprised me a bit. It used 85% on average of my CPU resources to compress an H.264 video to an HEVC file.

Yes, it definitely falls behind VideoProc Converter AI that takes only 6% computer resources. However, it does surpass HandBrake video compressor by saving on average 5% CPU usage, in this case.

5. HandBrake

  • Best free video compression software for cross-platform users
  • Can compress MP4, MKV, WebM, and a few more formats
Supported OS Compression ratio Compression speed Top-notch quality Expert rating

Windows, Mac, Linux

Around 80%


20 by TechRadar

HandBrake Video Compressor

If you've used HandBrake, then you've undoubtedly heard about how jampacked this cross-platform and free video compressor is.

Based on FFmpeg, this free video reducer lets you compress video files from all popular codecs including MP4, AVI, MOV, H.264, HEVC, etc. It offers you full control over video parameters, and that sounds nice.

However, beginners are always advised to stick with HandBrake preset options. Why? You'll have to climb a steep learning curve before you can apply customized settings on a video to shrink its size without A/V out-of-sync problems, missing audio, or other errors.


  • Compress more than one video file at a time
  • Rip home DVDs to digital formats
  • Downscale or upscale the video resolution
  • Ready-made setting profiles for major platforms


  • Free and open-source
  • A plethora of tutorials are accessible
  • Excellent compression ratio


  • Output only MKV, WebM, and MP4 files
  • Too difficult to master if you are a first time user
  • Slow compression speed and high CPU usage


One of the things that I love most about HandBrake is it gives lots of video conversion profiles and presets, with which everyone can easily compress or convert video files for Discord Nitro, YouTube, Vimeo, and other popular platforms and devices.

6. Shutter Encoder

  • Best free video compressor software that can color grade videos
  • Can compress popular lossy and lossless formats
Supported OS Compression ratio Compression speed Top-notch quality Expert rating

Windows, Mac, Linux

50% to 90%

Relatively slow

by Alternativeto

Shutter Encoder

Shutter Encoder is a powerful and feature-rich video converter developed by a group of passionate video editors. While there isn't a button specially designed for video compression, users can shrink MP4 to the wanted size with settings options for resolution, bitrate, file size, resolution, etc.

The range of this free video compressor software's input and output formats is very impressive, including AV1, HEVC, VP9, and GoPro CineForm. The interface might be a little bit intimidating for the first-time user, but it's well worth the time spent learning it.


  • Convert video format to HEVC/AVI to reduce the file size
  • Download video and audio files from websites
  • Rip DVDs and Blu-ray discs. Extract audio from video
  • Add fade-in effects, put subtitles/LUTs, trim video length...


  • Support editing friendly codecs like QT Animation and GoPro CineForm
  • Free of charge. No ads or watermark


  • Can't compress multiple videos with different output settings
  • A confusing UI that's hard to navigate
  • 99%+ high CPU usage


While Shutter Encoder may be challenging for beginners to use, it's worth noting that it's one of the few video compression tools on the market that supports both input and output in AV1 format. If you're looking to compress a video file and reduce its size by converting it to AV1, then Shutter Encoder could be the best option for you.

7. FFmpeg

  • Best free video compression software for numerous advanced controls
  • Can compress MP4, MOV, MKV, and other popular formats
Supported OS Compression ratio Compression speed Top-notch quality Expert rating

Windows, Mac, Linux

20% to 80%

Depend on the input command lines

Depend on the input command lines

by Capterra

FFmpeg Video Compressor

FFmpeg is a piece of open-source and cross-platform audio and video processing software. It's an excellent choice for advanced users who want a powerful tool to manipulate the compression ratio, the output quality, the option of the QSV, and other settings without restrictions. Unfortunately, FFmpeg performs all tasks through the command lines.

FFmpeg is not an easy-to-approach video compression software. It requires you to input the correct command line to reduce the video bitrate, downscale video resolution, crop videos, mute audio, etc. The absence of the regular GUI might make once bright-eyed newbies feel hopeless.


  • Compress video to the target size or quality level
  • Support video, audio, subtitle, and picture files
  • Deshake, denoise, blur, trim, merge, rotate videos
  • Download video streaming media from links


  • Supports a vast number of formats
  • Few restrictions on the functionality


  • A steep learning curve
  • File compression takes a long time


From compressing your video to a small size to editing the audio length, there are many uses of this convenient video compression tool. However, if you're a newcomer like me, then be ready to spend lots of time learning how to install FFmpeg on Windows/Mac/Linux and what is the right command to compress an MP4 video with FFmpeg.

8. Any Video Converter

  • Best free video compressor software that can burn DVDs
  • Can compress 100+ video and audio formats
Supported OS Compression ratio Compression speed Top-notch quality Expert rating

Windows, Mac

60% to 90%


by Trustpilot

Any Video Converter

Any Video Converter is a multiple-function video compressor with a very easy-to-navigate interface and a number of presets. It's a good option for beginners who want to quickly compress or convert CDs and videos for playing or uploading on iOS, Android, Microsoft, and Sony products, etc.

Any Video Converter supports the import of 200+ video and audio formats, which is a huge number. Another big plus of this freemium MP4 compressor is it can take advantage of CUDA and NVIDIA GPU acceleration technology to compress videos. In other words, it can process your video files smoothly on a mid-range Windows or Mac.


  • Custom video aspect ratio, frame rate, and constant quality
  • Extract audio tracks from video files and DVDs
  • Record screen, burn DVDs, edit videos


  • Support batch conversion


  • Lack of extra features
  • Encounter repeated failures when compressing 4K videos


Any Video Converter can leverage the graphics card to compress videos, which helps speed up the compression process and avoids high CPU usage. It would be my first choice if it gives up reminding me to pay the $9.99 annual subscription fee after each compression work.

9. QuickTime Player

  • Best free video compression software on Mac for the screen recording capability
  • Can compress some AVI and WAV formats and the majority of MPEG formats
Supported OS Compression ratio Compression speed Top-notch quality Expert rating

Windows, Mac


Relatively fast


QuickTime Export Video

QuickTime Player, developed by Apple, is a versatile media player that supports a wide array of formats for movies, music, and podcasts. Beyond basic playback, it offers additional features such as screen recording, file conversion, subtitle integration, and customization options. Notably, QuickTime Player can also function as a video compressor by allowing users to export video files at a lower resolution—for instance, downsizing 4K videos to 1080P - to reduce file size. However, it's important to note that this process involves a decrease in resolution, which could result in noticeable quality loss.


  • Play 4K HDR iPhone recording and iTunes files
  • Record screens and webcam on Mac
  • Pre-installed on Mac


  • Easy and free to use


  • No access to define the parameters to a specific value
  • All videos compressed by QuickTime Player will turn to MP4 format
  • High CPU usage rate and extremely slow compression process
  • Sometimes it can't read HEVC, VP9, AV1, and other videos in the advanced codec


The picture quality always rolled downhill after being compressed by QuickTime Player. Even worse, this free video compressor on Mac can't read my HEVC videos.

10. iMovie

  • Supported OS: Mac
  • Can compress MP4, MOV, M4A, H.264, AVCHD, Apple ProRes, and more
Supported OS Compression ratio Compression speed Top-notch quality Expert rating




by Capterra

how to compress a video with iMovie

iMovie is the go-to choice for macOS and iOS users to make simple edits. It doesn't come with the compression command, and you can't customize the video parameters.

The good thing is, though it doesn't let you dig into settings much further, iMovie allows you to assign different quality grades to your video when exporting. To put it plainly, you can throw up a video to iMovie, skip the editing steps, and pick up a relatively lower resolution, bitrate, and quality grade to get the job done. Like most other Apple software, iMovie has poor compatibility. Note: this free video compressor cannot compress MKV videos and many relatively rare video formats.


  • Allow you to trim, cut, and crop to compress video
  • Estimate the final compressed file size and length
  • Pre-installed on Mac, iPad, and iPhone


  • 0 Learning curve


  • Take over 90% of the CPU resource
  • A high compression ratio always brings visible quality loss
  • Can't customize the parameters for video compression


iMovie is limited in comparison capabilities to most other video compressors for Windows or Mac listed in this post. But for the overall performance, iMovie is stable and fast.

11. Windows Movie Maker

  • Best free video compression software for Windows 7 that offers direct sharing options for social media platforms
  • Can compress MP2, MPEG2, H264, MP4, WMA, WMA, and more
Supported OS Compression ratio Compression speed Top-notch quality Expert rating

Windows 7


Relatively fast

by ExpertReviews

Windows Movie Maker Video Compressor

I have to be honest here, Windows Movie Maker is known to have limited capabilities regardless you are using it as a video editing software or a video compression software. It can't compress AV1, VP8/VP9, HEVC, and many trendy video formats. Whether you feed in the MKV, AVI, MOV, or other files, you'll get H.264 MP4 or WMV files after compression.

However, I felt the need to mention it on this best video compressor list because it is pre-installed on every Windows 7 computer and used to be one of the most popular and convenient free MP4 file compressor. You'll be able to take advantage of the GPU acceleration tech to speed up the video compression process.


  • Compress videos in common formats such as MP4, AVI, and MPEG
  • Allow basic video editing
  • Instantly share your content on Gmail, YouTube, Facebook, Group, and other social media


  • Support hardware acceleration
  • Free and easy to use


  • Not available on Windows 8, Windows 10, and Windows 11
  • Support the output of MP4 and WMV formats only


This free video compressor for PC displays the estimated video file size when you select an exported file type which is very helpful for beginners get avoid choosing the wrong file type.

12. Shotcut

  • Best free video compressor with a customizable interface
  • Can compress popular video, audio, and image formats
Supported OS Compression ratio Compression speed Top-notch quality Expert rating

Windows, Mac, Linux


Relatively fast

by TechRadar

Export settings in Shotcut

In the experienced hands, Shotcut can be used to make some serious video compression work. In addition to the impressive features in editing videos, this free video compressor for Windows and Mac supports nearly every major video and audio codec and has a great compression ratio.

Almost everything you can do about compressing a video with a professional video compressor can get accomplished in Shotcut, though very possibly in a memory consuming and cumbersome way.

It does provide you with the Preset tab when exporting the video, however, it just lists up the supported codec, as like, HEVC main profile and H.264 baseline, with little attempt to explain the jargon. These complicated terminologies are also making the adjustments on video parameters for decreeing video file size a process of error and trial for beginners.


  • The compression ratio is on par with some professional video converters
  • Give full control over codec, bitrate, resolution, and GOP, etc.
  • As an NLE video editor, it provides a professional video editing toolset


  • Open source and free
  • A good compression ratio


  • Require quite a bit of education and training prior to use
  • A CPU and memory hog


Just like any other NLE video editors that have timelines, you'll have to take some exploration to master all its nifty features. The first time I used Shotcut to compress a 4K 42Mbs video, the result busted up to 89Mbs. But after I realized where the error happen and corrected it, everything went flawlessly.

Best Online Video Compressors

13. Freeconvert

  • Best online video compression software that can compress up to 1GB video file
  • Can compress: MP4, WebM, FLV, MKV, and 300+ other video formats
Supported OS Compression ratio Compression speed Top-notch quality Expert rating



It depends

by Mywot

Freeconvert Video Compressor

For those of you wishing to compress videos on Windows or Mac without installing extra paid or free video compression software, Freeconvert is for you. This free online video compressor app enables you to compress MP4, AVI, MKV, or other video files from your local drive, Dropbox, Google Drive, or video URL to MP4, FLV, MKV, AVI, MOV, or 3GP file.

It lets you compress a video by adjusting the size, changing the maximum bitrate, or tuning the picture quality. For instance, if the source file is 100 MB, choose Compress video by size, and set up Reduce the file size by 50%, theoretically, you'll make it shrank to 50MB.

However, Freeconvert doesn't guarantee you a smaller result. When I added up a 26MB MP4 H.264 file to the Freeconvert video compressor, and choose to reduce the size by 1%, I finally got a 36MB compressed file which was bigger than the source. Another slightly vexing issue is the free Freeconvert video compressor doesn't allow you to compress video with a size larger than 1GB.


  • Compress video by adjusting size, bitrate, or quality
  • Compress video files up to 1 GB for free
  • Several editing options to polish your video


  • Handle both popular and obscure video formats
  • Utterly easy to use


  • The compression speed totally depends on your network environment
  • No for compressing large videos
  • Only support the HEVC and H.264 encoder
  • Might enlarge your source video file
  • Pop-up ads.


If I have to choose one online video compressor, Freeconvert will be my option. Freeconvert video compressor is more generous than the majority of online video compression software. The largest video file you can compress with it is up to 1GB. Better yet, it's completely free.

14. OnlineConverter

  • Best online video compressor for easy UI
  • Can compress: MP4, MPG, 3GP, GIF, WMV, and many more
Supported OS Compression ratio Compression speed Top-notch quality Expert rating




by Digiarty

Online Converter Video Compressor

OnlineConverter video compressor is the epitome of simplicity. Once you import a video to this free online video compressor, you can enter the desired file size, and then hit Compress. That's it. The drawback? It doesn't leave you any room to customize the basic video parameters.

The supported video size is 200MB at maximum. While the OnlineConverter video compressor allows compressing MP4, AVI, FLV, MOV, 3GP, MKV, WMV, and many other videos, it accepts the output of MP4 video only. This means everything will turn to MP4 video after compression.


  • Compress video files by setting the desired output file size
  • Compress or convert video, audio, ebook, picture, and document files
  • A few editing tools: correct color, add images/transitions/background


  • Everything is in a few clicks
  • Compress different kinds of formats
  • Free compress video files right from the web


  • Only enable you to compress a video by entering the desired file size
  • Bitrate, resolution, and other video parameters are neither visible nor customizable
  • Slow compression speed under a bad network connection


Personally, I don't like its 80-style interface. And I don't know about you, but what's the purpose of a piece of compression software that can't compress large video at all?

15. MP4Compress

  • Best online free MP4 compressor for compressing MP4 video files under 500MB
  • Can compress MP4 format
Supported OS Compression ratio Compression speed Top-notch quality Expert rating


40% to 60%

It depends

by Digiarty

MP4Compress Online Video Compressor

MP4Compress is an online MP4 compressor that attempts to help you compress MP4 files while keeping the good picture quality. Compared to all the nominated video compressors in this list, MP4Compress is perhaps the easiest option.

To use this online video compression app, all things you have to do is import a video and hit Upload Video File. As you might already expect, this MP4 compressor doesn't offer you options to select the compression ratio, bitrate, resolution, or other properties for your purpose.

However, don't worry too much. In most cases, it should satisfy your demand. I tested the compression capability of MP4Compress with some MP4 videos, and most of them were reduced to 40% ~ 75% of their original size.


  • This online MP4 compressor runs on Mac, PC, iOS, Android, Linux…
  • Compress video files up to 500MB for free
  • Extra editing tools to remove sound, remove shaky, and make grayscale videos
  • Convert MP4 video to MP3


  • One-click to compress videos
  • Free to use without pop-up ads
  • Good compression ratio


  • Can't set up a more optimal compression ratio or picture quality
  • As an MP4 compressor, it won't work to compress MKV, AVI, MOV…


No ads, and not require registration to use. MP4compressor works like many online picture compressors, limited but efficient.

16. 8mb.Video

  • Best online video compressor for making a video smaller than 8MB, 50MB, or 100MB
  • Can compress all widely-used video formats
Supported OS Compression ratio Compression speed Top-notch quality Expert rating


Around 70% (depends on the specified target size)

Relatively fast

by TrustPilot

8MB Video Compressor

8MB.Video is an easy-to-use and watermark-free online video compressor for Discord. It's specialized in making a video less than 8MB, 50MB, and 100MB. Thus, if you intend to compress videos under 2GBs for sending on Discord, it might be your best bet. Worry about the privacy threat issue? Then you'd be glad to see 8MB.Video's promises that all the videos you upload to its server would be deleted after 20 minutes. However, the 5-minute upload length limit makes it useless for compressing long videos, such as DVD music videos and movie recaps.


  • Compress video files up to 2GB for free
  • This online video compressor runs on Mac, PC, iOS, Android, Linux…


  • No watermark or ads
  • 0 learning curve


  • No custom compression options
  • 5 minutes of limit in length
  • Compress large video with terrible quality loss
  • Can't compress video to MKV, AVI, and MOV…


Though the input video file size can be up to 2GB, 8MB video compressor often goes crashes when loading or compressing videos that are large in size, resolution, or frame rate.

17. Zamzar

  • Best online video compressor for the ads-free UI
  • Can compress 3GP, MP4, AVI, M2TS...
Supported OS Compression ratio Compression speed Top-notch quality Expert rating



It depends


Zamzar MP4 Compressor

Zamzar possesses the ability to compress and convert video, audio, image, document, ebook, and archive files. It has an easy-to-navigate and ads-free interface, in which a video can be added by dragging or adding a link.

Video files up to 50 MB are compressed for free, larger videos need you to purchase their paid plan. For example, you can purchase its business plan (which costs $25 per month) to increase the size limit to 2GB. Zamzar doesn't give extra options to control the compression settings. It won't display the estimated file size after compression. Thus, it's not a good option for users who want to compress video to under a specific size.


  • Compress video, audio, picture, and document files
  • This web video compressor runs on Mac, PC, iOS, Android, Linux…


  • Ads- and watermark-free
  • Easy for beginners to use
  • This web video compressor runs on Mac, PC, iOS, Android, Linux…


  • Only compress AVI, MOV, and MP4 files
  • Paid to compress a video that exceeds 50MB
  • Too limited compression features


I used several clips to test the compression ratio and overall performance of Zamzar. However, all ends up with failure. It recognized my 4K videos but always compressed them to wrong size (about 1KB). When coping with my MOV MPEG4 or MP4 H.264 video files, it returns the error message: Unfortunately, we haven't been able to compress your file to a smaller size.

How to Pick Your Best Video Compressor

1. Understand Your Video Compression Needs

Consider the size of your source video files and your intended target size. Are you aiming for a specific size reduction, or do you simply want them to be smaller? Is maintaining high video quality a top priority for you? How frequently you need to compress videos. Answering these questions can help you narrow down the most suitable video compression options for your requirements.

If you have large source videos or require specific target sizes like 8MB or 20MB, a professional video compressor like VideoProc Converter AI is your best bet. If your goal is to reduce video size without a specific target or video compression is only an occasional task for you, then using non-professional video tools like the built-in Windows video editor or media player should suffice. If your video is small (under 200MB) and quality isn't a top concern, consider using online video compressors.

2. Factors to Consider When Choosing the Best Video Compressor

Once you've identified your specific compression needs, it's time to start evaluating the available video compressors. Here are some factors to consider:

Compression Ratio

The compression ratio tells you how much a video compressor can shrink your video file. A higher ratio means it can make the file significantly smaller. I tested the compression ratios of all the video compressors in this post. But it's important to know that comparing their compression abilities fairly and accurately isn't easy because each video compressor offers one or more ways to reduce video size. For example, VLC lets you tweak resolution, codec, and other settings, QuickTime changes size by adjusting resolution, and VideoProc Converter AI allows you to set a target file size or compression ratio.

Compression Speed

When thinking about video compression, speed becomes a crucial factor. A video compressor that works faster not only saves you time but also makes it convenient to compress multiple videos in a snap. Asides from checking the speed I tested with each video compressor, you can also verify the speed by it's a good idea to check if they make use of GPU acceleration and how effectively they do so. Additionally, the ability to tap into multiple CPU core threads can significantly speed up the process.

Learning Curve/Ease of Use

When you're on the hunt for video compressor software, it's essential to think about how quickly you can pick it up and get good at it. Nobody wants to spend months just trying to figure out how to compress a video to the right size and quality. An easy-to-use video compressor should let you simply set your desired file size or compression level, offer a bunch of output options for different platforms and devices, and have a user-friendly, clean interface. Asides, the majority of open source video compressors like HandBrake and FFmpeg take steep learning curve to master.

Supported Video Formats

Many video compressors claim they work with a wide range of video formats, but with the plethora of video recording devices and sources available today, you need to be certain about which video formats your source files or recording devices use. Then, make sure the video compressor you're considering can handle those specific video file formats. For your convenience, I already add the supported input and output formats information of each video compressor in this post.

Common Video Compression Techs

1. Increase the GOP Length

What video compressor can reduce the file size by increasing GOP value: VideoProc Converter AI, HandBrake, ShotCut.

GOP, also known as a group of pictures, comprises one I-frame, and many P- and B-frames.

I-frame remains all data of a frame P and B frame in a GOP is predicted by I-frame. P-frame covers the differences between it and the previous I frame. B frame contains the difference between the adjacent two frames. The length of the GOP refers to the number of frames between two I-frames.

When one increases the length of GOP length, the number of I-frame decreases and the video gets to be compressed. If your video contains few motions changes, just feel no hesitate to increase its GOP length with a video compressor.

2. Convert to High Compression Efficiency Codecs

The higher the compression efficiency refers to a smaller size. H.264 is currently is the most compatible video format, and we can figure out it has a better compression ratio than MPEG4/MPEG2 and H.263.

Codec H.265/HEVC H.264/AVC MPEG4 H.263 MPEG2

Compression ratio

up to 1000:1





Suppose you are holding an 800MB of MPEG2 video, then compressing it to an MPEG4 clip will save you 300 to 400MB of storage space. What if you want to compress an H.264 or VP8 video? Any better choice when you simply want to squeeze the size of your video without having to consider its compatibility?

Transcode your video to HEVC, VP9, or AV1. According to Netflix's test made upon 5000 12 seconds clips, VP9 and HEVC are capable of compressing the video size by 50% while still achieving the same high quality as H.264 and VP8. AV1 has a similar high compression ratio to HEVC. Suppose the source file is in H.264, a compressor that supports the HEVC codec will help you reduce the file size by half or more without sacrificing quality.

The best video compressor that lets you make the transcoding is VideoProc Converter AI. This fancy video compression software can compress any video to HEVC, VP9, and other advanced codecs. Meanwhile, it always keeps itself updated with the latest high entropy codec algorithm for offering you the best compression efficiency and lossless quality.

The support of re-encode is another big plus of VideoProc Converter AI as it lets you reduce the original file size by 80% or even more without making any adjustments on video codec or other parameters.

Squeeze File with VideoProc Converter AI
Squeeze File with VideoProc

News: As reported by BBC, the new VVC codec could save 27% and 35% on video size more than HEVC. Thus, very possibly, VVC is the future best target format when compressing video.

3. Reduce the Frame Rate

The easiest video compressor that allows you to reduce the frame rate: Freemake, VideoProc Converter AI.

The high frame rate can bring you a true-to-life and smooth viewing experience when watching sports shows, video games, action movies, and other videos with fast motion content.

However, suppose your videos are about landscapes, yoga courses, photo slideshows, and other relatively static images, turning to a low frame rate is a nice idea. When the given other parameters are the same, here's the difference in file size:

Video 15FPS 24FPS 30FPS 60FPS 120FPS

1080P H.264 1hour






720P H.264 1hour






4. Lower the Bit Rate

Best examples of a video compressor that allows you to define the bitrate: VideoProc Converter AI, Handbrake, Shotcut.

The video bitrate in MB (Megabits) is the number of bits that are processed in a second. When other parameters of the video are the same, a higher bit rate equals a larger size and a higher quality.

For instance, an uncompressed 2minutes, 23.976fps, 1920x1080P, 35Mbps video takes storage space of 518.4MBs. The same clip of video with a bitrate of 12Mbps costs you only 172.8Mpbs of storage space.

The good part is the large consumption in space doesn't trade you with the same grade of optimization in visual experience. It's very difficult for our eyes to notice the difference between a 12Mbps and a 35Mbps HD video. Below is the recommended video bitrate for videos in different resolutions that you can take as a reference.

Resolution Bitrate of video in standard frame rate Bitrate of video in high frame rate

2160 4K video



1080P HD video



720P HD video



5. Downgrade the Resolutions

The best video compressor for Windows 10/11 and Mac that allows you to downgrade the resolution without losing quality: VideoProc Converter AI.

A video with a higher resolution gets more pixels to show the details of the picture, and that is why people now like 4K UHD and 1080P videos. However, it's hard for our eyes to notice the difference when you are watching a 1080P video or 720P video on a smartphone, so is the same when watching 4K videos and 1080P videos on an HD TV or computer.

Thus you can simply downgrade the resolution from 4K to 1080P and 720P, or shrink 1080P to 720P to compress the video. From our test, VideoProc Converter AI is the best compassion program as it has fast response and retains over 99% of the original quality.

Compress the Resolution with VideoProc Converter AI
Compress the Resolution with VideoProc Converter AI

6. Remove the Audio Track

The fastest video compressor can shrink your video by removing the audio track in one click: VideoProc Converter AI.

This sounds like a weird method. But it definitely makes sense, especially when you compress a video for sharing on social media like Facebook, Linkedin, Twitter, and Instagram as 80% of people in those platforms now watch videos without sound. And you know what? 2 minutes of 32bit, 384 KHz, WAV video might come with a size larger than 350Mbs. So why not simply remove the sound from your video file.


1. What is the best MP4 video compression software?

VideoProc Converter AI is the best MP4 video compression software if you need to compress MP4 videos on Windows 11/10/8.1/7 or Mac. If you need to reduce MP4 file size online, MP4Compress is your perfect option.

Free Download For Win 7 or later
Free Download For macOS 10.13 or later

Note: The Windows version now supports AI-powered Super Resolution, Frame Interpolation, and Stabilization to enhance video and image quality. These AI features are not yet available in the Mac version but will be coming soon.

2. Which free video compressor is best?

HandBrake is the best free video compressor for advanced users who want to reduce the size of an MP4 file. As for beginners who want to quickly compress video to under 8MB, 50MB, or 100MB, 8mb.Video is the best free video compression software.

3. What is the best video compressor without losing quality?

The best video compressor that lets you make a video smaller without visible quality loss is VideoProc Converter AI. With features like using the advanced encoding technique and the max-quality compression engine, it can reduce video file size while maximizing the output quality.

About The Author

Cecilia Hwung is the marketing manager of Digiarty Software and the editor-in-chief of the VideoProc team. She pursues common progress with her team and expects to share creative content and useful information with readers. She has a strong interest in copywriting and rich experience in editing tips.

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Digiarty Software, established in 2006, pioneers multimedia innovation with AI-powered and GPU-accelerated solutions. With the mission to "Art Up Your Digital Life", Digiarty provides AI video/image enhancement, editing, conversion, and more solutions. VideoProc under Digiarty has attracted 4.6 million users from 180+ countries.

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