All-in-One Video Converter

Wondershare UniConverter

  • Dwonload and convert YouTube videos to MKV or upload MKV to YouTube with simple steps.
  • Support 1,000+ video/audio formats such as MP4, MOV, AVI, WMV, etc.
  • Download YouTube videos to MP3 or other audio formats directly.
  • Versatile toolbox combines VR Converter, GIF Maker, Fix Media Metadata, Burn DVD, etc.
MKV to YouTube


1. Play MKV on Device+
  1. 1.1 Top MKV Player
  2. 1.2 Play MKV on Mac
  3. 1.3 Play MKV on Apple TV
  4. 1.4 Play MKV on Samsung TV
  5. 1.5 Play MKV on Sony TV
  6. 1.6 Play MKV on LG TV
  7. 1.7 Play MKV on PS3
  8. 1.8 Play MKV on Xbox One
  9. 1.9 Play MKV on Xbox360
  10. 1.10 Play MKV to iPhone
  11. 1.11 Play MKV to iPad
  12. 1.12 Play MKV on iPod
  13. 1.13 Play MKV on Android Phone
  14. 1.14 Play MKV in VLC
  15. 1.15 Play MKV in Windows Media Player
  16. 1.16 MKV Playback Issues in VLC
2. Convert MKV to Other Format+
  1. 2.1 Convert MKV to MP4
  2. 2.2 Convert MKV to MP4 on Mac
  3. 2.3 Convert MKV to MP4 Online
  4. 2.4 Convert MKV to MP3
  5. 2.5 Convert MKV to Audio
  6. 2.6 Convert MKV to WMV
  7. 2.7 Convert MKV to M4V
  8. 2.8 Convert MKV to AVI
  9. 2.9 Convert MKV to AVI Online
  10. 2.10 Convert MKV to FLV
  11. 2.11 Convert MKV to DVD
  12. 2.12 Convert MKV to MOV
  13. 2.13 Convert MKV to iTunes
  14. 2.14 MKV to MOV Converter Online
  15. 2.15 Convert MKV to VOB
  16. 2.16 Convert MKV to DivX
  17. 2.17 Convert MKV to MPEG
  18. 2.18 Convert MKV to MPEG2
  19. 2.19 Convert MKV to MPEG4
  20. 2.20 Convert MKV to XviD
  21. 2.21 Convert MKV to 3GP
  22. 2.22 Convert MKV to M2TS
  23. 2.23 Convert MKV to H264
  24. 2.24 Convert MKV to TS
  25. 2.25 Convert MKV to VCD
  26. 2.26 Convert MKV to AC3
  27. 2.27 Burn MKV to DVD
  28. 2.28 Burn MKV to Blu-ray
  29. 2.29 Convert MKV to SWF
  30. 2.30 Convert MKV to MP4 with Subtitle
  31. 2.31 Convert MKV to WAV
  32. 2.32 Convert MKV to MPG
  33. 2.33 Convert MKV to ISO
  34. 2.33 Convert MKV to WebM
3. Convert Other Format to MKV+
  1. 3.1 Convert MP4 to MKV
  2. 3.2 Convert MP4 to MKV on Mac
  3. 3.3 Convert MP4 to MKV Online
  4. 3.4 Convert M4V to MKV
  5. 3.5 Convert WMV to MKV
  6. 3.6 Convert MOV to MKV
  7. 3.7 Convert DVD to MKV
  8. 3.8 Convert M2TS to MKV
  9. 3.9 Convert AVI to MKV
  10. 3.10 Convert Bluray to MKV
  11. 3.11 Convert FLV to MKV
  12. 3.12 Convert AVCHD to MKV
  13. 3.13 Convert OGM to MKV
  14. 3.14 Convert MTS to MKV
  15. 3.15 Convert WTV to MKV
  16. 3.16 Convert VOB to MKV
  17. 3.17 Convert RMVB to MKV
  18. 3.18 YouTube to MKV
  19. 3.19 Convert WebM to MKV
4. Edit MKV & Other Tips+
  1. 4.1 Extract Subtitles from MKV
  2. 4.2 Add Substitles to MKV
  3. 4.3 Add SRT to MKV
  4. 4.4 Compress MKV Video
  5. 4.5 Reduce MKV File Size
  6. 4.6 Cut MKV Files
  7. 4.7 Edit MKV Metadata
  8. 4.8 MKV No Sound
  9. 4.9 MKV Video Player for Android
  10. 4.10 MKV Converter for Mac
  11. 4.11 Free MKV Converter
  12. 4.12 MKV Player Mac
  13. 4.13 2D to 3D MKV Converter
  14. 4.14 Remux MKV
  15. 4.15 MKV Encoder
  16. 4.16 Convert MKV to FCP Mac
  17. 4.17 Stream MKV to TV with Chromecast
  18. 4.18 Import MKV to iMovie
  19. 4.19 Windows DVD Maker MKV
  20. 4.20 Convert MKV to MP4 with HandBrake Alternative

How to Convert YouTube to MKV or MKV to YouTube Easily

by Christine Smith • 2020-10-28 19:08:07 • Proven solutions

Talking about online video sharing sites, YouTube needs no introduction. The site has a huge collection of movies, TV shows, music videos, and other content. YouTube allows watching videos online, but if you want offline playback of these videos, downloading and converting it to MKV or other formats is recommended. Similarly, many times, you have a video in MKV or other formats that you might want to share over the YouTube site. In both the above situations: to convert YouTube to MKV or MKV to YouTube, a professional converter is needed. Discussed below are the best YouTube converter MKV solutions.

Part 1. All-in-One MKV Converter to Convert YouTube to MKV and Vice Versa

We recommend Wondershare UniConverter (originally Wondershare Video Converter Ultimate) as the best software for all your conversion needs, be it YouTube to MKV or vice versa. The software supports more than 1,000 formats for conversion, including HD and 4K videos. Video download from over 10,000 video sites is supported by the program, including YouTube, Facebook, Vimeo, and others. You can also enjoy its added features such as super fast conversion speed, lossless quality conversion, complete video editor, DVD burning, etc.

Wondershare UniConverter - Your Complete Video Toolbox for Windows/Mac

  • Convert YouTube videos to MKV and upload MKV to YouTube with simple steps.
  • Download videos by pasting URLs from 10,000+ video sites, including YouTube.
  • YouTube videos can be directly downloaded in MKV format in high quality and 30X faster conversion speed.
  • Convert YouTube videos to 1,000+ video/audio formats like 4K videos, HD videos, MP4, MKV, MOV, AVI, etc.
  • Video editor allows cropping, cutting, adding watermark, and adding special effects to the video before conversion.
  • Supports batch processing for converting multiple files at a time.
  • Video playlist can be downloaded at a time from YouTube.
  • Toolbox with additional functions like VR Converter, GIF Maker, Fix Media Metadata, and more.
  • 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 Convert YouTube to MKV Using Wondershare UniConverter:

Before proceeding with the steps below, open the YouTube video that you want to convert and copy its URL.

choose MKV as YouTube download format

Step 1 Launch Wondershare YouTube to MKV Converter and Select MKV Format.

Download, install and open Wondershare UniConverter on your PC/Mac. Select the Downloader tab. On the top-right side corner, open the Download then Convert button, and a media format list will appear. From the Video tab, choose MKV as the desired format and also the output file resolution.

choose MKV as YouTube download format

Step 2 Paste URL to Download and Convert YouTube to MKV.

Click on the add files icon in Wondershare UniConverter button that the copied YouTube URL will automatically be pasted. The video converter will start analyzing, downloading, and converting your YouTube video to MKV format.

download and convert YouTube to MKV

Step 3 Locate MKV File.

Once the download and convert process is completed, you can locate the YouTube MKV video from the Finished tab. You can also compress the MKV file size.

locate YouTube to MKV videos

Steps to Upload MKV to YouTube with Wondershare UniConverter:

The Mac version of Wondershare UniConverter also allows uploading your videos to YouTube directly, provided they are in YouTube compatible format. You can thus convert MKV to YouTube supported formats and upload the same using the program.

Step 1 Open Wondershare MKV to YouTube Uploader and Add MKV Files.

Launch Wondershare UniConverter on your Mac. From the Video Converter tab, click on the add files icon in Wondershare UniConverter to browse and add MKV files that you want to upload to YouTube. There is also an option to drag and drop the files to the interface.

add MKV to convert to YouTube

Step 2 Choose the YouTube Supported Format.

On the top-right corner, open the drop-down menu at the Output Format: option. From the Video tab, choose the YouTube option. Also, select the desired resolution.

select YouTube as target format

Step 3 Convert MKV to YouTube.

Click on the Start All button to start converting MKV videos to YouTube compatible format.

convert MKV to YouTube

Step 4 Upload MKV Videos to YouTube.

The converted video will appear on the Finished tab. Select the desired video, click on the Export option on the top menu bar, and select Uploading to YouTube option. A new Export window will open from where select the YouTube tab, enter video details and click on the Sign-in button to open your YouTube account where you want to post your video. Finally, click on the Upload button that will start uploading your MKV video to your YouTube account.

upload converted MKV to YouTube

Part 2. How to Convert YouTube to MKV Free

There are a number of online tools that allows downloading YouTube videos in an array of video formats. These programs work from your browser and need no software download, installation, or registration. Though there is no specific YouTube to MKV converter online program, you can first download your YouTube videos in some other supported format and then convert it to MKV. Online Video Converter is a decent tool to download your YouTube videos in MP4, M4V, MOV, AVI. FLV, MPG, and WMV format. Once downloaded, the video can then be converted to MKV using Online UniConverter (originally

Steps for Downloading YouTube Videos with Online Video Converter:

Step 1: Open the YouTube video that you need to download and copy its URL.

Step 2: Open on your PC browser. Paste the copied URL to the program interface.

Step 3: Select MP4 (or any other format) from the video list.

select MP4 as output format

Step 4: Click on the START button to start downloading YouTube videos in the desired format. Once the process is complete, the file can be downloaded on the PC at a convenient location.

start downloading Youtube to MP4

Steps for YouTube to MKV Online Conversion with Online UniConverter (originally

Step 1: Open Online UniConverter (originally ( on your PC. Click on +Add your files button to add the downloaded YouTube video in MP4 format.

Step 2: At Convert to: option, select MKV as the desired output format from the supported video list.

select MKV as output format

Step 3: Click the Convert button to start converting YouTube to MKV videos online.

convert MP4 to MKV

Part 3. How to Convert Upload MKV to YouTube Free

If you want to upload MKV to YouTube, first, you need to convert your MKV videos to other YouTube supported formats. There is no online tool that allows converting and uploading YouTube videos directly. Thus, the best solution is to first convert your MKV videos to a supported format using a decent program like Online UniConverter (originally, and then upload the videos manually.

Online UniConverter (originally has an option for converting MKV videos to YouTube specific format. The program is free to use and needs no download or installation.

Steps on How to Convert MKV to YouTube Video Format:

Step 1: Open on a PC browser. Click on +Add your files to browse and add the MKV video that you wish to upload.

add MKV to online converter

Step 2: From Convert to: section, choose YouTube video from the Video list

select YouTube videos to output

Step 3: Hit the Convert button to start converting MKV files to YouTube supported format.

convert MKV to YouTube online

The converted file can then be downloaded on your PC and uploaded to YouTube manually. With the above steps, you can upload MKV to YouTube after conversion.

Conclusion: As the methods we mentioned above, online free YouTube to MKV or MKV to YouTube solutions are free and don't need downloading and installing, but an all-in-one video solution, Wondershare UniConverter, is more convenient and no limitation about video conversion.

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Christine Smith

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