Your Complete Video Toolbox

Wondershare UniConverter (originally Wondershare Video Converter Ultimate)

  • Reduce video file size without less quality loss.
  • Make video smaller in MP4, AVI, MOV, MPEG.
  • One-click to compress MP4 video files to other formats.
  • Convert video to optimized preset for iPhone, Android devices.
  • All-in-one toolbox combines screen recorder, video converter, video downloader, etc.
reduce video file size

Compress Videos

1. Compress Video/Audio in Different Formats+
  1. 1.1 Compress MP4 on Winodws & Mac
  2. 1.2 Reduce Size of MP4
  3. 1.3 Resize MP4 Videos Online
  4. 1.4 Compress MP4 Online
  5. 1.5 Free MP4 Compressors
  6. 1.6 Compress FLV
  7. 1.7 Compress MKV
  8. 1.8 Compress MOV
  9. 1.9 Compress MOV Online
  10. 1.10 Compress WMV
  11. 1.11 Comrpess M4V
  12. 1.12 Compress MPEG/3GP
  13. 1.13 Compress H264 File
  14. 1.14 Compress AVI File
  15. 1.15 Reduce Size of MKV
  16. 1.16 Top 5 WebM Compressors
  17. 1.17 Compress WAV Free Online
  18. 1.18 FLAC Compression Software
  19. 1.19 Top 5 Online MP3 Size Reducers
  20. 1.20 Compress M4A Files Free Online
2. Compress Video from Devices/Apps +
  1. 2.1 Compress iPhone Video
  2. 2.2 Compress Camcorder Video
  3. 2.3 Compress GoPro Video
  4. 2.4 Compress QuickTime Video
  5. 2.5 Compress Fraps Video
  6. 2.6 Top 12 File Compressor for Android
  7. 2.7 MMS Video Size Limit for iPhone/Android
  8. 2.8 Shorten Videos on iPhone
  9. 2.9 10 Video Compressor App Android/iPhone
  10. 2.10 Top 8 Video Size Reducers for Android
3. Compress Video with Different Apps +
  1. 3.1 Resize Video in iMovie
  2. 3.2 Make VLC Resize Video
  3. 3.3 Make Windows Movie Maker Resize Video
  4. 3.4 Different Apps to Compress Video
  5. 3.5 Compress Videos with Windows Media Player Alternatives
  6. 3.6 Use FFmpeg to Resize Video
  7. 3.7 Apple Compressor 4 Alternative
  8. 3.8 Top 6 Clipchamp Alternatives
  9. 3.9 Top 7 Video Cutter and Compressor
  10. 3.10 HandBrake Video Compressor Alternative
4. Compress Video for Different Purposes +
  1. 4.1 Compress Video for Email
  2. 4.2 Compress Video for Web
  3. 4.3 Compress Video for YouTube
  4. 4.4 Compress Video for Vimeo
  5. 4.5 Compress Video for Facebook, Instagram
  6. 4.6 Twitter Video Compression
  7. 4.7 Resize Facebook Video Size
  8. 4.8 Resize Instagram Video Size
  9. 4.9 Compress YouTube Video Size
  10. 4.10 Compress Video for DVD
  11. 4.11 Send Large Files via Email
  12. 4.12 Compress Files for WhatsApp
  13. 4.13 Send Long Videos on WhatsApp
5. Other Tips & Tricks +
  1. 5.1 Full Guide to Compress Video
  2. 5.2 Free Video Compressors
  3. 5.3 Top 7 Video Compressors
  4. 5.4 Top 10 Video Compressor for Mac
  5. 5.5 Top Audio Compressors
  6. 5.6 Top 8 Audio Compressor Free Online
  7. 5.7 Compress Files to Small Size
  8. 5.8 Compress HD/FHD (4K/1080P) Videos
  9. 5.9 Compress A Video
  10. 5.10 Compressed Video Formats
  11. 5.11 Top 8 Compression Software 2019
  12. 5.12 Top 9 File Compressors
  13. 5.13 How to Make A File Smaller
  14. 5.14 How to Make Video Smaller
  15. 5.15 Lossless Compression
  16. 5.16 Top 10 Ways to Reduce Video Size
  17. 5.17 Compress Files & Folders
  18. 5.18 Compress Folder Online and Free
  19. 5.19 Top 6 Online Size Converters
  20. 5.20 Top 10 Ways to Send Large Videos
  21. 5.21 Top 5 Video Resizer
  22. 5.22 Top 6 File Size Reducer
  23. 5.23 Shorten a Video Online and Free
  24. 5.24 Change MP4/MP3 Bitrate
  25. 5.25 11 Ways to Compress Videos Free Online

Top 4 Compressors to Compress MP4 Online Free and Without Quality Loss

How to compress an MP4 file Online and maintain its quality?

Today, it is very easy to reduce the file size thanks to different online free solutions. These online video compressors help shrink the size of files to be easily uploaded to social media, sent by email, or simply free up disk space. In this article, you will learn how to reduce MP4 file size online and the solution to shrink MP4 videos without any limitation.

Part 1. Compress MP4 Video to Smaller Size Without Losing Quality [Unlimited Size]

Large video files can be slow to load and download when we use an MP4 video compressor online. One of the most popular tools that can significantly reduce file size without losing quality in a short time is Wondershare UniConverter (originally Wondershare Video Converter Ultimate).

With Wondershare UniConverter, you can convert your videos to almost all formats available, either in audio or video in very fast and simple steps. You can also add subtitles to the videos or share them to your social networks. Also, it highlights when it comes to converting videos for YouTube, even in MP4 format at 4K resolution.

Key features of Wondershare UniConverter:

Wondershare UniConverter - Your Best Video Compressor

video converter ultimate
  • Compress video without causing any harm to its quality.
  • Quite fast during compression and conversion of any format.
  • You can customize video in terms of resolution, bitrate, frame rate and much more.
  • Edit, enhance & personalize your videos.
  • Burn video to playable DVD with attractive free DVD template.
  • Download or record videos from 10,000 video sharing sites.
  • Versatile toolbox includes fixing video metadata, GIF maker, casting video to TV, CD burner and screen recorder.
  • Supported OS: Windows 10/8/7/XP/Vista, Mac OS X 10.14 (Mojave), 10.13, 10.12, 10.11, 10.10, 10.9, 10.8, 10.7, 10.6.
security download Security Verified, 5,481,347 people have downloaded it.

Steps on how to compress MP4 with online MP4 reducer alternative:

Step 1 Upload MP4 videos to the online video compressor alternative.

Firstly, you need to download, install and launch Wondershare UniConverter to convert MP4 to smaller file size. After this, open the software and first click on Convert > Converting, and then click on Add Files to select your video from the pop-up window. You can also drag and drop MP4 files directly.

Upload MP4 videos to the online MP4 reducer alternative

Step 2 Choose video output format.

Go to the Convert all files to: option and click on the drop-down button to open the format list. Choose Video option and select MP4 option or other formats you want as your output format.

choose output video format

Step 3 Optimize MP4 to smaller file size offline.

You can find the video thumbnail on the interface. You're allowed to crop, trim or make other editing features if you want by clicking on the editing icons. Just skip it if you want to keep your videos original.

cut video unwanted parts

Next, click on the compress icon on the Target bar, you'll get a new window to changing compression settings including video resolution, format, bit rate, and others. You can check the video for 20 seconds by clicking on the Preview button. Click on the OK button to save your changes.

Convert MP4 to smaller file size offline

Step 4 Start compressing MP4 video size.

When you are finished with the Settings, click on the Convert All button and your MP4 videos will be compressed without losing quality after a while. You can find the compressed videos from the Converted tab.

Start compressing MP4 videos

This method allows you to compress multiple files in batch, if you just want to compress an MP4 video quickly, you can try the other way to reduce video size easily >>.

Test results with this MP4 video compressor online alternative:

The time it took to compress MP4 offline: 1 min 05s
Input: MP4 video, 3 min 41s,386.68MB, 3846*2160(16:9), 30 FPS.
Output: FLV video, 3 min 41s, 82.49MB, 1980*1080p(16:9), 25 FPS.
Computer: Windows 7, 3.4GHz Intel Core i5, 16GB

Watch Video to Learn How to Compress MP4 Online with the Top 4 Compressors

Related articles you may concern:

Part 2. How to Reduce Video File Size Online Free [Limited Size]

Sharing digital videos through different social media by uploading them is something very common among your people, is something they do on a daily basis. The most used digital video format is MP4. However, this format provides DVD quality images which means that the files are too large to upload them online or send them to other people via email. So, is there any way to compress MP4 video to a smaller size? Yes and we want to show you several different tools to compress MP4 video to smaller size online.

1. Online UniConverter (originally Media.io)

Online UniConverter (originally Media.io) is a very useful online video compressor that allows us to reduce MP4 video size online without having to install any software on your computer. This free video compressor is very useful for those cases in which we want to compress video for YouTube or compress video for email. With this option, you will compress MP4 online free whenever you need it. It's totally a free online video compressor without ads and watermarks, and you're allowed to upload a maximum of 100MB of data split between up to 2 different files. Most common video formats are supported so that you can compress your file size easily.

compress MP4 online with Online UniConverter

2. VideoSmaller

It is an online MP4 video compressor that helps you to reduce your file size. It is available in nine different languages and supports MP4, MOV and more formats. It has many other features that you can use online in a moment without installing any software like the conversion from documents into PDF files, extract audios from videos, upload files up to 500 MB. So it makes the problem of how to compress a video file to make it smaller become easy.

compress mp3 online with videosmaller

3. Cloudconvert

This is another good option to compress MP4 video online without installing any application on your device. Cloudconvert allows you to compress different files at the same time and making them be ready to send through email without a problem. Now you can compress MP4 video to smaller size online free.

compress MP4 online with cloudconvert

How to compress MP4 video free online using online MP4 compressor?

Here we will take Online UniConverter online video compressor as an example, learn the step by step as below:

Step 1: Open Online UniConverter (https://www.media.io/video-compressor.html) in your browser and you'll go to the main interface. Click on the + icon on the interface to add a video you want to compress. Or you can drag and drop the file directly.

Go to Online UniConverter website and add videos to compress online

Step 2: The basic information of your added video will be displayed, and you're allowed to change video resolution, compressed file size with percentage, and choose output format as you like.

change video compression settings

Step 3: After all changes are confirmed, click on the COMPRESS button to reduce MP4 video size. You can see a DOWNLOAD button after the compression process finished.

compress MP4 video online

Test results in compressing online videos with Online UniConverter

The time it took to compress MP4 offline: 45 mins
Input: MP4 video, 3 min 41s,386.68MB, 3846*2160(16:9), 30 FPS.
Output: FLV video, 3 min 41s, 82.49MB, 1980*1080p(16:9), 25 FPS.
Computer: Windows 7, 3.4GHz Intel Core i5, 16GB

Pros for the MP4 online compressor:

  • Complete video compression within 3 simple steps.
  • Don't need any download, installation, or registration.
  • Different languages access.
  • Free to use without ads and watermarks.
  • It's safe for your data.
  • Compress video with resolution changed and format converted.
  • Support saving compressed videos to Dropbox directly.

Cons:

  • File size limitation on 100MB each file.
  • Compressing speed depends on the Internet connection.
  • Cannot compress several files at a time.

Part 3. A Comparison Between Desktop MP4 Compressor and Online MP4 Compressors

Nowadays the capacity is no longer measured in Megabytes but in Gigabytes and more in Terabytes and also has increased the size of everything like the photos of mega-megapixels, games that occupy medium hard disk, programs that need more space than the system operational, and compression is still necessary. We can compress MP4 video online or download the software to your device, it will depend on many things.

We want to show you a comparison table between desktop MP4 Compressor and online MP4 Compressor:

Wondershare UniConverter Online UniConverter VideoSmaller Cloudconvert
Video compressor formats More than 1000 video/audio formats like MP3, MP4, AVI, MOV. MP4, MOV, WMV, FLV, AVI, and other common video formats. MP4, AVI, MOV, MPEG MP4, AVI, M4V, MPEG
Speed 30X faster Depends on your Internet connection Depends on your Internet connection Depends on your Internet connection.
Video size limitation No Yes Yes Yes
Allows batch compression once Yes No No No
Without Internet limitation Yes No No No
Edit videos Yes No No No
Compress audio files Yes No No No
Convert videos to audio Yes Yes Yes No
Fix video metadata Yes No No No
Video recording Yes No No No

How to compress video files is one of the most common questions when you want to upload it to the Internet or export it to a social network. There are several very good programs to compress video files that are very easy to use, you just have to choose the one that best suits your needs to convert MP4 to smaller file size desktop or compress MP4 online. Wondershare UniConverter is what we recommended most as it's multiple function and can compress videos without losing quality.

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