Video formats4 min read

How to convert MKV to MP4

Learn when an MKV to MP4 conversion is useful and how to do it in your browser.

Published

An MKV file card moving through a browser converter to an MP4 file card.

The short answer

Convert MKV to MP4 when a device, app, or website does not accept MKV. MP4 is commonly accepted, but you should still test the final file before you share it.

Why change MKV to MP4?

MKV is flexible and can hold several tracks. Some devices and websites prefer MP4 instead.

You may want MP4 when you need to:

  • play a video on a phone or TV app
  • upload a video to a service that asks for MP4
  • share a file with someone using a simple media player

Convert MKV to MP4 in Convert My

  1. Drop your .mkv file into the converter.
  2. Choose MP4.
  3. Select Convert & download.

Your file is processed in your browser. Do not close the page until the download starts.

What to check after conversion

A container conversion can still meet a codec limit. In simple words, the video or audio inside the file may affect whether a device can play it.

Check these items:

  • Can your target device open the file?
  • Does the picture play smoothly?
  • Is the correct audio track present?
  • Are subtitles available if you need them?

MP4 or MKV?

NeedBetter choice
Broad device and website supportMP4
Flexible media-library containerMKV
Simple sharingMP4
Multiple tracks in an archive workflowMKV

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