Your Complete Video Toolbox

Wondershare UniConverter

  • Lossless video compression to compress videos without losing quality on Windows/Mac.
  • Compress video by changing video resolution, bit rate, quality, format, and other parameters.
  • Support batch conversion and compression process and real-time preview function.
  • Versatile toolbox combines DVD Burner, Screen Recorder, GIF Maker, Fix Video Metadata, etc.
lossless video compression

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

Lossless Compression: Best Way to Compress Video Size Without Losing Quality

by Christine Smith • Jul 23,2019 • Proven solutions

What is lossless compression? What is lossy Compression? What is the difference between lossy and lossless compression?

Are you also get in trouble with the questions above when compressing video files? Compress videos without losing original quality is very important to get the best video watching experience. However, most tools that help compress videos are lossy video compression and lower video quality. It's getting more and more important to find a good program that facilitates lossless video compression. You can find all answers in this article, including the general knowledge about lossless and lossy compression, and how to compress videos without losing any quality.

Part 1. How to Compress Videos without Any Quality Loss

One of the best tools to attain lossless compression is Wondershare UniConverter (originally Wondershare Video Converter Ultimate). This complete video toolbox allows reducing and compressing video files by changing their parameters like quality, bit rate, resolution, and others. There is no loss of file quality during the compression process. The process is quick and there is also a preview feature to check the files before they are processed. An array of video formats is supported by the software for the compression purpose. Windows and Mac version of the program is available for free download.

Wondershare UniConverter - Your Complete Video Toolbox for Windows/Mac

  • Compress video and audio files on Windows/Mac without losing any quality.
  • Reduce video size by changing video resolution, bit rate, quality, size, and other parameters with real-time preview.
  • Convert and compress videos in 1,000+ formats including MP4, AVI, MOV, WMV, MPEG, etc.
  • 30X faster compressing speed than any other video compressor.
  • Download YouTube videos and playlist by pasting URL directly.
  • Transfer compressed videos from PC/Mac to iPhone/Android devices via a USB cable.
  • Supports batch processing to compress and convert multiple videos at a time.
  • Toolbox with additional functions like Screen Recorder, GIF Maker, Fix Media Metadata, Cast to TV, etc.
  • Supported OS: Windows 10/8/7/2003/Vista/XP, Mac OS 10.15 (Catalina), 10.14, 10.13, 10.12, 10.11, 10.10, 10.9, 10.8, 10.7, 10.6.
Security Verified. 5,481,347 people have downloaded it.

Steps to compress videos without losing quality using Wondershare UniConverter:

Step 1 Run Wondershare video compressor and select a video

Launch Wondershare UniConverter (originally Wondershare Video Converter Ultimate) after download and installation on your PC/Mac. Select the Video Compress option from the Toolbox tab.

launch Wondershare video compressor

Click on the + sign from the new window to browse and add a video file from the PC. Only one file at a time can be added.

add video for lossless compression

Step 2 Choose settings for compression

The added files with its details appear on the pop-up Compress video window. You can move the progress bar to select the compression settings that will accordingly change the parameters. There is also an option to manually select the format, resolution, quality and bit rate of the file.

choose compression settings

Step 3 Compress video without losing quality

Click on the Preview button to check the changes that will be made after the compression. Select file location at the Save file: tab to save the video. Click on the Compress button to start the process of video compression at lossless quality.

Compress video without quality loss

Part 2. More Knowledge about Lossy and Lossless Compression

1. What is Lossless Compression

Lossless compression is a process of compression where the size of the file is reduced without losing its quality. There is no loss of any data in the process of lossless conversion. In many situations, lossless compression is not very useful as the compressed files are almost of the same size as the original size.

2. What is Lossy Compression

Lossy compression is a process where the files are reduced and compressed in size with the loss of data from the original video. The quality of the file gets degraded with lossy compression process and it is irreversible. Majority of the compression tool allows choosing the percentage of the compression as there is a loss in quality. The file size gets reduced to a great extent with lossy compression that makes it easy to share and transfer the videos over an array of sources.

3. Difference between Lossy and Lossless Compression

It is evident from the above definition that there is a major difference between lossy and lossless compression. First of all, the quality of the file does not change with lossless compression while in the lossy process, the file quality is degraded. Secondly, the file size is reduced significantly with lossy compression but with lossless compression process, the output file is almost of the same size as the original one. Thus, the choice of lossy vs lossless compression depends on the type of website and its visitors it is targeted for.

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Christine Smith

chief Editor

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