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Posted by Kistent Waung - Contact Authoremail icon

How to Convert & Upload MKV Video to YouTube

YouTube now support FLV, MP4, WebM and 3GP container format videos. Accepted video encoding includes H.264/MPEG-4 AVC, VP9/VP8 and AV1. Thus, to upload MKV (multi-track) video to YouTube, you'd better convert MKV to YouTube best format MP4 first.

To convert video format from MKV to YouTube MP4, you need an assistant - MKV video converter. Here in this post we'd like to share with you the top MKV to YouTube converter for Windows PC/Mac to transcode MKV to MP4 or remux MKV to MP4 without quality loss. Then you can fast upload MKV to YouTube smoothly.

Free Download Best MKV to YouTube Converter [1:1 Quality for Outputs]

Download WinX HD Video Converter Deluxe free now! Why choose it? Reasons are:

  • Convert MKV (VP8/VP9/H264/HEVC..) to YouTube MP4, FLV, WebM, etc. supported format with 98% quality kept (High Quality Engine).
  • Remux MKV streams to YouTube MP4 without changing input & output codec, e.g., MKV H264 to MP4 H264. 1:1 quality for output!
  • Free select video, audio, subtitle tracks from multi-track MKV video, cut/trim MKV, crop MKV, merge MKV clips, add sub to MKV...
  • More features to find...

If you are a mobile user, please click here.

How to Convert, Remux and Upload MKV Files to YouTube

Step 1: Click + Video to import your MKV videos. This MKV to YouTube converter supports bulk conversion. Load MKV video folder or drag-drop it to this tool.

Step 2: Select output profile. Move to Web Video Profile -> YouTube Video -> MP4/MPEG4/FLV. The built-in profile shows you the codec and resolution info. And you can move the slidebar to adjust video quality (low or high) and conversion speed (fast or slow). Then click Done. Then click Done.

Convert MKV for Uploading to YouTube
Convert MKV for Uploading to YouTube


  1. Tap "Edit" icon (scissor-shaped icon) on the home screen to edit MKV videos before conversion, including, cut, crop, merge, rotate...
  2. Tick Auto Copy option at the lower right corner of the main interface if you just want to copy MKV to MP4 without codec transcoding.
enable Auto Copy
enable Auto Copy

Step 3: Click Browse to set Destination Folder to save the converted video.

Step 4: Click RUN button to start MKV to YouTube conversion at Level-3 GPU Intel QSV/Nvidia/AMD hardware accelerated 5X faster speed, up to 320FPS conversion speed.

Step 5: Upload MKV video to YouTube after the conversion or remux is done. Read this (video tutorial attached) to see the detailed steps on how to upload video to YouTube if needed.

Video Tutorial: Watch Video Guide to Transcode MKV to YouTube MP4 Video

Indeed, more free options are out there for you to fast convert MKV to YouTube supported video formats and codecs. The most common one is free online video converter service. Yet, seldom did I find they sports with Auto Copy mode to 1:1 copy video streams from MKV to MP4 without decoding or re-encoding. That's the reason why WinX is recommended for you if you do concern quality a lot!

Still have question on how to convert MKV to YouTube, please feel free to Mail Us >>


author - Kistent Waung

Kistent Waung twitter icon

Graduated from Nanyang Technological University, Singapore, she employs herself in IT related content creation (since 2013) and happens to perfectly combine her major (computer & science) and her gusto (writing). She's seasoned at offering video audio conversion workarounds and always passionate about new trends, from hot HEVC, 4K to the new AV1 codec.

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