It is said that the quality of video in MKV format is commonly better, and MKV widely supports all the coded video and audio formats, it is much more enjoyable to play HD and Blu-ray video in MKV. However, there are only few players and devices that can support MKV. Thus, there is always a need to find a free and powerful MKV video converter that allows MKV files to be converted to popular video formats. But you may not want a converter that makes the converted video watermarked or limited. There are some free MKV converters that can be shared. No watermark, no time limitation, and completely free.

Part 1: Free MKV Converter – Zamzar Free Online File Converter

Zamzar can be used as a free online converter which supports more than 1200 formats including almost all the common video formats like MP4, AVI, FLV, MKV, MOV, etc., and has been introduced to users for more than 10 years. It could be considered as one of the best free MKV converters online. It enables you to convert video (up to 100MB) from your computer. Besides, it’s capable of downloading video from some sharing sites like Myspace, Dailymotion, Metacafe, Break, etc., then converts the video to any popular format. The online video converter also comes with an easy to use interface so that you can convert MKV video file easily and fast. Follow the guide on how to convert MKV video file with Zamzar free MKV converter.

Step 1: Import source MKV file into the free MKV video converter by choosing files from your local hard drive, adding files from URL or dragging and dropping files directly.
Step 2: Choose output format from the format drop-down list including MP4, WMV, etc.
Step 3: Optionally enter your email address to receive converted files.
Step 4: Start converting MKV for free by clicking “Convert Now” button. Now the converter will start uploading the added files and converting it to the selected output format. After the converting process is over, you can download the converted file by clicking the download link.


Part 2: Free MKV Converter—Clipconverter

Clipconverter is an online YouTube video converting tool that can convert any YouTube video to MP3 up to 320kbps or convert YouTube video to MP4 up to 720p and save them for offline listening and watching. ClipConverter is a totally free video converter which provides you fast converting service. It supports any video clips in different formats including MP4, WebM, MKV, 3GP, etc. to be converted to MP3 or MP4. There is no need to install a software program on your PC, and it is quite easy to convert MKV within only one click.
Step 1. Copy and paste the URL of YouTube video to the converter.
Step 2. Choose .mp3 or .mp4 as the output format, and then click “Convert” to start converting.
After several seconds, you can download unlimited MP3 or MP4 to your PC.


Part 3: Free MKV Converter—HandBrake

As an open-source, GPL-licensed, multiplatform, multithreaded video transcoder, Handbrake is always popular among users for converting any videos to MP4 or MKV for free. It has different software versions for Windows, Mac and Linux so that almost all users can use it freely. Besides, it has so many functions and complicated interface. So, it may not be an appropriate one for beginners. However, Handbrake is an undeniably powerful tool that can handle just about any video conversions. To be a free MKV converter is just the smallest part of it. After you download and install the program on your computer, you can follow the guide to convert MKV video with Handbrake in several steps.
Step 1. Open an MKV file by clicking “Open Source” to browse and import the file to the program.
Step 2. Choose the output format. If you need advanced settings for output video, you can also set video quality or optimize video, add audio track or subtitles and so on.
Step 3. Set the destination path for saving the converted file.
Step 4. Click “Start Encode” to start converting MKV video.


Handbrake is always keeping updating and obviously helpful for you to convert MKV videos. Since it only supports MP4 and MKV for output formats, you should find another video converter when you are willing to convert MKV video to other formats.

Part 4: Free MKV Converter—MediaCoder

MediaCoder would be a great and free MKV converter for you. Since 2005, MediaCoder has been a universal media converter software which has so many cutting-edge audio/video technologies. It can be used for converting between most popular audio and video formats such as MP3, FLAC, LC-AAC, WMA, WMV, MP4, WebM, F4V, MKV, etc. with a rich set of adjustable parameters to customize your converting. It is so powerful that it improves compression or reduces size for the video files and extracts audio track from video files and discs. Moreover, MediaCoder could even fix the corrupted or partial downloaded video files and make sure that the converted video files are in good quality and performance. And this program is advantageous since it has portable version that can work on iPad/iPhone. All its features make it popular in converting MKV videos as a free MKV converter.
Step 1. Add MKV files from your PC or add an online MKV video by copying and pasting its URL. It allows users to import video files by adding single file/file folder, URL, RSS or track, etc. and the properties window next to the imported file list will show the detail information of the selected file.
Step 2. Set the output format and video effects. You can choose the output format from the drop-down list under Format option. Besides, the program allows to customize the video file on effects, subtitle, cropping, etc.
Step 3. Click Start to begin the conversion. And the progress bar will show you the process.


Obviously, Mediacode offers so many functions and options that it is somewhat complicated for users who are not familiar with this program. If you are only need the basic functions, you can follow the steps above. If you are a master of it, feel free to use it for your need.

Part 5: Free MKV Converter Alternative – Leawo Video Converter

All the free MKV converters mentioned above are quite of use and good performance to some extent. However, they also have some limitations, such as size limitation, internet connection, video uploading and downloading inconvenience, slow converting speed, etc. Therefore you must need a free MKV converter alternative, and in this case, Leawo Video Converter would be your best choice.
Leawo Video Converter is a professional audio and video converting program that allows you to convert videos to or from MKV format with no watermark to any other audio or video formats. For instance, it could perform as a professional MKV to MP4 converter, an eligible MKV to AVI converter, an MKV to FLV converter, etc. to let you convert MKV to any format you like. Besides, it supports to convert videos between over 180 formats like FLV, MOV, WMV, AVI, etc. in an easy and professional way. That’s to say, you can use it to freely convert FLV to MP4, MOV to MP4, WMV to MP4, etc. The converted files could even be played back on nearly all mobile devices like iPhone 7, Galaxy Note 7, Nexus 7, Nexus 5, iPad Pro and more.

To see how easily this great MKV converter works, just download and install Leawo Video Converter on your computer. And then kick off Leawo Video Converter to enter the main program interface and follow the tutorial below.

Guide on how to convert MKV with Leawo Video Converter:

Step 1: Import source MKV video files
Click “Add Video” button on the sub-menu to load your source MKV video files. After loading, you could play back MKV video files, select subtitles and audio tracks from source MKV video files, add external subtitles to loaded MKV video files, edit loaded MKV video files, etc.


Step 2: Set output format
Click the drop-down box next to the “Add Photo” button. On the drop-down list, select “Change” option. Then on the popup Profile window, select a video format from “Format” column as output format. Alternatively, you can directly choose a device from “Device” column as output device.


Note: If you need, you could click the “Edit” button on the drop-down profile setting box to adjust video and audio parameters like video codec, aspect ratio, frame rate, resolution, audio codec, bit rate, channel, sample rate, etc.


Step 3: Convert MKV to other format
Click the big green “Convert” button on the sub-menu bar. Then, on the popup sidebar, set output directory. After setting output directory, click the “Convert” button right below. Leawo Video Converter would start to convert MKV to other format immediately.


Note: As Leawo Video Converter also has Mac version, you are able to convert MKV video on Mac as easily as on Windows PC.