EaseUS Video Editor

Versatile video editing software to turn clips or footage into marvelous videos.

  • Make videos easily via basic and advanced video editing features
  • Add texts, filters, overlays, transitions, and special effects freely
  • Selectively convert a video to MP3, GIF, MP4, AVI, WMV, MKV, MOV...

Best Free MKV to MP4 Converter | How to Convert MKV to MP4 on Windows, macOS and Online

Jean updated on Sep 16, 2020 to Video Editing Tips | How-to Articles

Do you have a video in MKV format that you can neither open nor play on many portable devices like Apple iPad, iPhone, Android phone, or even third-party video players? You may wonder how to convert MKV to other proper file formats at this moment. If you know the other video format (MP4) a little, you should know that the best idea to solve the MKV incompatible issue is to convert MKV to MP4. Fortunately, transcoding files from MKV to MP4 is becoming quick and easy as soon as you reach here and find the capable MKV to MP4 converter.


Why Do You Convert MKV to MP4?

mkv vs mp4

MKV and MP4 are two kinds of the most common video formats we're very familiar with. But most times, in reality, we hear of MP4 more often than the MKV because it's the industry standard video format accepted by almost all devices and video players. Sometimes, when you downloaded or received a .mkv video, it's time for you to change the file extension to a playable one. The following are the two reasons that may ask you to convert MKV to MP4.

  • Platforms compatibility: MKV is not so mobile-friendly, whereas MP4 is very good on both PC and mobile devices.
  • File size: MKV usually has a larger size than MP4 videos owning to the support for multiple audio and subtitle tracks.

Next, we are going to demonstrate each solution to convert video to MP4. You can follow the user guide and learn how to turn MKV into MP4 free on Windows, Mac, and online.

1. How to Convert MKV to MP4 on Windows 10 - EaseUS Video Editor

One of the simplest solutions to transfer an MKV video format to MP4 is using EaseUS Video Editor, a free video editor without watermark that has many more robust functions. Among which, for example, is the video and audio conversion.

The first impression on EaseUS Video Editor is always simple yet powerful. On top of that, there are more persuasive reasons that empower it to rank on the top recommendation to modify an existing video format to the other, including:

  • Support all Windows operating systems
  • Support popular source video format: e.g. MKV, GIF, MOV, FLV...
  • Support popular target video format: MP4, AVI, WMV, GIF, MOV, MKV...
  • Support all-around video editing while converting
  • Support playing the MKV video before file conversion
  • Support massive and free templates like texts, filters, music...

Once downloaded the EaseUS video converter software, you'll be greatly satisfied with its ease of use, and the fast speed in taking care of some lengthy video files as well.

Step by steps to change an MKV file to MP4 on Windows 10 without losing quality:

Step 1. Import the source file

Launch EaseUS Video Editor. On the home screen, you can import the source file by either clicking the "Import" option or simply dragging the video to the appropriate area.

import file

Step 2. Add to project

You need to add the imported file to the track by choosing the "Add to Project" option, or you can drag and place the video to the track as you want.

add to project

Step 3. Export the source file

Now you can click "Export" on the main menu on the top.


Step 4. Save as MP4/AVI/WMV/MKV/MOV/GIF

Under the "Video" tab, choose a file format among the available options as the desired video file format. 

add to project

On the right pane, you can edit the file name, customize an output folder and settings and then click "Export".

add to project

2. How to Convert MKV to MP4 on Mac and Windows - VLC Media Player

When it comes to mentioning an MKV video, we must introduce VLC media player, which is one of the rare MKV compatible media players on the market. It's said that VLC is people's favorite choice for playing MKV files, mostly because it has built-in support. Better yet, it can also convert the MKV files to something more universal as MP4 for free.

One advantage of using VLC over the EaseUS video converter is that VLC is a cross-platform supported application. Both Windows and Mac users can benefit from the program. Only one difference that average users should notice, the process of converting MKV to MP4 with VLC is somewhat time-consuming. You'll go through more steps to make the conversion done.

Step 1. Download and run VLC media player on your PC or Mac.

Step 2. From the main menu, select Media > Convert/Save...

convert mkv to mp4 with vlc media player step 1

Step 3. On the File tab, click "Add..." to add your MKV video to the list. (You can also use the drag & drop feature to upload the MKV file)

Step 4. Click Convert/Save...

Step 5. Specify your desired video format. You should choose H.264 + Mp3 (MP4).

convert mkv to mp4 with vlc media player step 2

Step 6. Specify under Destination to select a path to export the MP4 file. 

Step 7. Click Start. Once the timeline progress finishes, your video will be ready.

3. Top 5 Free Online MKV to MP4 Converter 

The best part of having an online video converter is that you don't necessarily download it, and it doesn't matter what operating system you're running, only what internet browser defines its usability. 

When searching the best online MKV to MP4 converter on Google, you'll get overwhelming results that will definitely make you lost. most online programs that boast free not really free. You got to pay for some. Usually a file number limitation, dazzling ads keep popping up, asking you to register with a mailbox, send you junk mails ten times a day, etc. The worst situation resulting from some bad websites are painfully irritating.

How to choose the best MKV to MP4 converter among the vast sea? Don't bother. We've made the decision for you.

1. ConvertFiles

ConvertFiles is a free online MKV file converter, which can work directly from your browse. It supports almost all video and audio formats, besides, the MKV to MP4 conversion is very simple and fast. All you have to do is to upload your MKV file, choose the MP4 as the output format, and click "Convert" at last. If you want to change the format of audio, image, and document, you also can complete the task with this online converter.

MKV to MP4 Converter - ConvertFiles


Zamzar is another popular free MKV converter. This online MKV converter program supports more than 1,200 file formats, including MKV, AVI, WMV, MOV, and many more. Moreover, it has a high speed for MKV to MP4 conversion, you can finish the task within 10 minutes. (usually, it only takes 1-2 minutes) If you don't know how to convert MKV file to MP4, don't fret. You can check the simple steps on the interface. 

MKV to MP4 Converter - Zamzar

3. FileZigZag

FileZigZag can help you change your file formats for free, with support for document, images, ebook, audio, archives, and video formats. MKV to MP4 converter is just a little part of its functions. It uses a sophisticated conversion engine to deliver the best quality conversion. All the MKV to MP4 conversion will be done in a short time and the output file quality is the best. What's more, this online software will delete all the upload files after 24 hours to protect your privacy. 

MKV to MP4 converter - FileZigzag

4. Convertio

Convertio is a great online MKV to MP4 converter, which supports over 25600 different conversions between more than 300 different file formats. For turning MKV files into MP4, the conversion takes place in the cloud and will not consume any capacity from your computer. This online converter offers many advanced options to choose quality, aspect ratio, codec, and many others. Most importantly, this MKV to MP4 converter can work for all platforms. You can convert from MKV to MP4 free anywhere, anytime.

MKV to MP4 Converter - Convertio

5. Online-Convert

Online-Convert is a free MKV video to MP4 converter. This program also provides many file conversions, like audio, document, image, image, and more. You can import your MKV files from your computer, Dropbox, and Google Drive. It lets you easily convert MKV files to MP4. Apart from changing the MKV files format, it offers a great many editing options. You can choose a preset, change screen size and video bitrate and frame rate. Also, you can simply rotate, mirror, and crop your video with the online MKV converter. 

MKV to MP4 converter - Onlineconvert

Tips about changing MKV file to MP4 with Online MKV Converter:

The operation of online file conversion software is pretty the same: Upload files from a local drive (Some support uploading from Cloud) > Choose a destination file format (MP4) > Start/Convert.


Whenever you need to convert MKV to MP4 to solve the incompatible issue on certain devices or reduce the file size, choose the right MKV file converter among the best found on this page, based on your needs.

If you are a Windows user, we recommend EaseUS Video Editor. This software can help you turn MKV files into MP4 easily without losing quality. Before converting, you can modify your video with wonderful video editing tools, like cropping, trimming, splitting, reveersing, etc. Also, this program offers over 300 visual effects to make your video files more attractive. Now get ready with the MKV to MP4 converter and start to convert MKV to MP4 easily and effectively.

People Also Ask

There are some other questions about converting MKV to MP4. If you want to know more about it, just continue reading.

1. How can I convert MKV to mp4 for free?

Using EaseUS Video Editor, you can convert MKV to MP4 for free. You can refer to part 1 to learn how to turn MKV into MP4.

2. How do I change a MKV file to mp4?

To change a MKV file to MP4, you can use some MKV converters. Here is the list of MKV to MP4 Converter. EaseUS Video Editor

  • VLC Media Player
  • FFmpeg
  • ConvertFiles
  • Zamzar

3. What is the best free MKV to mp4 Converter?

Here are seven best free MKV to MP4 Converter.

  • EaseUS Video Editor (Windows)
  • VLC Media Player (Windows/Mac)
  • CovertFiles (Windows/Mac/Linux)
  • Zamzar (Windows/Mac/Linux)
  • FileZigZag (Windows/Mac/Linux)
  • Convertio (Windows/Mac/Linux)
  • Online-Convert (Windows/Mac/Linux)

4. How do I convert MKV to mp4 with VLC?

VLC is an open-source MKV to MP4 converter. You can move to Part 2 to check more details about how to change an MKV file to MP4.

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