“I have 20 video files of my friend’s wedding, all these files are on MP4, I want to convert them into MKV. Please suggest me the best MP4 to MKV clips converter application.”

MP4/MPEG4 is a compression container used to play on almost all operating systems, such as Apple, Android, Sony, Microsoft devices, etc. Thus, it’s no wonder that you can find lots of MP4 videos downloaded from Internet or shot by mobile phone, digital cameras. If you are obsessed with h.264 MP4 hot movies, you could not wait to convert these MP4 movies to MKV files. As a widely supported open multimedia format for HD video nowadays, Matroska (MKV) is intended to act as a generic format for saving common multimedia content (movies or TV shows), but most importantly, it can compress higher quality videos than MP4. This is the main reason why users need to convert MP4 to MKV. In this tutorial, I’ll share several applications or free online converters for your reference.

Part 1: Introduction of Professional MP4 to MKV converter – Leawo Video Converter

While there are so many video converters for Mac/Windows available on tech market, the preferred option is Leawo Video Converter. This video conversion application is developed to convert one file extension from common HD video to any other file types, such as AVI, DivX, Xvid, VOB, MOV, WMV, ASF, RMVB, RM, MPEG, FLV, MPG, MP4, MP3, WMA, 3GP, MKV. In addition to the main feature of video format conversion, users can still have chance to cut a short video or crop video image for better display. This program supports 2D to 3D conversion and batch video loading and converting, and the conversion is at ultra­high speed with low output quality loss. Hence, it is highly recommended.

Part 2: Convert MP4 to MKV with Leawo Video Converter.

The operation process of this best MP4 to MKV Converter is pretty much the same on both Windows and Mac system, the step-by-step guide below will show how to transfer MP4 to MKV on Windows. First and foremost, you are required to download video converter for Windows and give it a try.


Step 1: Open Up MP4 Videos for Conversion

When the download process has finished, launch it and click “Add Video” icon to locate single or multiple MP4 files from its video folder into this application.

Step 2: Set MKV as Output Video Format

After loading MP4 files, go to video format part to choose “MKV” as an output video format. If necessary, you can click “Edit” to adjust output video codec, size, bit rate, aspect ratio, frame rate, audio codec, channel, etc.

Step 3: Start the Process to Convert MP4 to MKV

By default, the output file will be stored on disk C, you can click on green “Convert” button to set an output directory then tap on “Convert” at the bottom of the sidebar to begin the process of MP4 to MKV conversion. After the whole conversion process, you can find output files of WMV in the output directory.

Part 3: Convert MP4 to WKV Free with Free Online Converters

An increasing number of free online video converters come out every day to meet great demand of video format conversion. Why do more and more people choose online tools? Here are 2 leading reasons: It’s free and no need to install any third-party software on computer in case of suffering from virus attack. Here are top 5 recognized free online converters in 2017: ClipConverter, Convert2MP3, OnlineVideoConverter, Online-convert, Zamzar. Let’s take Zamzar as an example to convert MP4 to MKV.

Step 1: Insert Video URL/Upload MP4 Video

Go to official site of Zamzar, search video you want to convert on YouTube, Dailymotion, Vemo or Clipfish and copy & paste its URL in the blank box, Or you can directly click “Upload and Convert File” to select MP4 videos, then click “Continue”.

Step 2: Choose Video Format as MKV

Click inverted triangle and you’ll find 49 formats video formats, just select “MKV” as output video format.

Step 3: Enter Email Address to Receive Converted Video

Enter email address that you wish to send converted videos to and click “Agree to Our Terms” to begin converting MP4 to MKV.


Beyond the benefits of video conversion, below are some limits of the 5 online tools for you to choose the right one.

ClipConverter: It puts limitation for 100MB maximum per file size with 25 conversion minutes per day and 25 minutes maximum conversion time per file.

Convert2MP3: Users are not allowed to upload video files from local folder.

OnlineVideoConverter: Supported video formats is limited.

Online-convert: Users are only free to convert maximum file size of 100MB.

Zamzar: This tool allows to select one but not multiple files to convert.

If you take a glance at the ways listed in this article, you’ll figure out that Leawo Video Converter can cover all shortages of the 5 free online converters mentioned above. Whether you want to convert MP4 to MKV or MKV to MP4, take full advantage of this program to get it.