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How to convert MP4 to MKV without losing quality using Movavi Video Converter

Edited by Ben Jacklin

With video converter by Movavi, you can convert MP4 to MKV, MKV to MOV, and AVI to MKV, along with other popular formats without losing image quality. Get the free download trial of this MP4-to-MKV converter or buy the full version of the software for Windows PC or Mac and easily change the format of your videos! In the guide below, we cover how to convert MP4 to MKV using this program. Read on, and you’ll also learn to turn your multimedia encoded in various video formats into MKV files and vice versa.

Step 1. Download and install the MP4-to-MKV video converter

Get the MKV file converter from the Movavi website and install it following the on-screen instructions. This handy and practical app will let you change the format of your video files in a flash.

Step 2. Add the files you want to convert

Click Add Media and select Add Video to add the videos you want to convert. With the MKV converter from Movavi, you can transcode your entire media library in multiple batches, choosing the settings manually or automatically.

Step 3. Choose a video format

Open the Video tab at the bottom of the application window and find the MKV category. Expand the list and choose one of the MKV presets. If you want to adjust any advanced parameters, access them by clicking the Cogwheel button below the presets panel. If you are converting MKV files to MP4, AVI, 3GP, or any other media format, pick the appropriate preset for your required output format.

Step 4. Convert MP4 to MKV or vice versa

To choose the folder where you want to place the converted files, click the Save to button. Now, click Convert to process the videos. Converting files can take anything from one to several minutes, depending on the file size and the number of the files you’re converting.

The Movavi MKV video converter creates your new file or files in your chosen format automatically. When the process is completed, a folder with the created files opens automatically.

MP4 vs. MKV: A comparison

Both formats usually contain a video codec, an audio codec, subtitles, and other useful data. MP4 is highly popular for storing media files since it offers a good ratio of size and quality and works with a variety of platforms and devices. MKV is also quite popular as it is handy for movie storage due to multiple subtitle streams and audio tracks in various languages being packaged in one file. However, the MKV format has only limited compatibility.

See the table below for a more detailed overview of the MP4 vs. MKV comparison.

Comparison parameter



File extension



Developed by



Video-encoding formats

H.264, H.265, MPEG-2, MPEG-4, H.263, VC-1, Dirac, and others

H.264, H.265, MPEG-4, MJPEG, Theora, VP9, DV, and others

Here’s what Movavi’s team does to provide you with verified information:

  • When selecting products to include in our reviews, we research both demand and popularity.

  • All the products covered in this article have been tested by our team.

  • When testing, we compare key characteristics, including supported input and output formats, quality loss when converting, and other significant features.

  • We study user reviews from popular review platforms and make use of this information when writing our product reviews.

  • We collect feedback from our users and analyze their opinions of Movavi software as well as products from other companies.


Frequently asked questions

What is the MKV video format?

How to convert MP4 to MKV for free?

Which format is better – MP4 or MKV?

Are MKV files smaller than MP4 files?

Why does VLC not play MKV?

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