10 Best Free MKV to MP4 Online Converter Services

Here is a list of best free MKV to MP4 online converter services. MKV or Matroska Video File is a media format that carries high-definition videos with added subtitle tracks. This format can also carry ratings, cover art, chapters, description, etc., information. Similar to MKV, MP4 is also a media format that can high-quality video, audio, subtitles, still images, etc. Although, MP4 is a lot more popular and widely supported by media programs. If you want to convert MKV videos to MP4 format, then check out these MKV to MP4 converter websites.

Using these services, users can convert one or more MKV videos to MP4 format. Some also et users convert MKV videos to MOV, AVI, FLV, MPG, XVID, etc., formats. They also offer tools to adjust the output video parameters like Video Resolution, Framerate, Aspect Ratio, and more. The process to convert MKV videos are also quite simple on all these websites. To help out users, I have included the steps of conversion in the description of each website.

These converters also come with additional tools that allow users to capture websites, compress images, convert documents, etc. Go through the list to know more about these services.

My Favorite MKV to MP4 online converter service:

cloudconvert.com is my favorite service because it can batch convert MKV videos to MP4 and other video formats. It also lets users manually adjust the video parameters like resolution, codec, aspect ratio, etc.

You can also check out lists of best free Online MP4 to MKV Converter, Online MP4 to HEVC Converter, and Online AV1 to MP4 Converter services.

cloudconvert.com

cloudconvert.com is a free MKV to MP4 online converter service. Through this service, users can easily batch convert multiple MKV videos to MP4. Apart from MP4, it can also convert MKV videos to WEBM, AVI, FLV, MKV, etc., formats. It also allows users to manually adjust various video parameters such as video resolution, quality, video codec, aspect ratio, etc. Now, follow the below steps.

How to convert MKV to MP4 online using cloudconvert.com:

Start this website and load one or more MKV videos.
After that, choose MP4 format from Convert to menu.
Now, go to Settings to adjust the output video parameters.
Lastly, click on the Convert button to initiate the conversion process.

Additional Features:

This website also has additional Archive conversion, Ebook conversion, Image Optimization, Website Capture, etc., online tools.

Limitation:

The free version of this website only performs limited file conversions in a day. You need to purchase its premium version to increase the daily conversion limit.

Final Thoughts:

It is a good MKV to MP4 online converter service that can batch convert MKV videos to MP4 and other supported video formats.

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freeconvert.com

freeconvert.com is a free MKV to MP4 online converter service. Using this service, users can convert large MKV videos of up to 1 GB size to MP4, OGV, MKV, WEBM, FLV, etc., formats. It also supports batch video conversion to speed up the conversion process. An Advanced Settings panel is also present in it through which users can adjust the video codec, video resolution, aspect ratio, etc., parameters. Now, follow the below steps.

How to convert MKV to MP4 online using freeconvert.com:

Start this website and click on the Choose Files button to load one or more MKV videos.
Now, choose MP4 format from the Output menu.
Next, go to Advanced Settings to adjust output video parameters like video codec, aspect ratio, resolution, etc.
Lastly, click on the Convert to MP4 button to start the conversion process.

Additional Features:

Converters: It offers multiple online converters such as Document Converter, Ebook Converter, Archive Converter, Vector Converter, and more.
Tools: It offers handy video cropping, video trimming, PNG compression, GIF compression, etc., tools.

Limitations:

The free version of this website only lets users perform a few file conversions in a day. To remove restrictions, users need to choose one of its premium plans.

Final Thoughts:

It is a simple-to-use MKV to MP4 online converter service that anyone can use to convert MKV videos to MP4 format.

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zamzar.com

zamzar.com is another free MKV to MP4 online converter service. Using this website, users can only convert small MKV videos to MP4 format. Although, you can still perform batch video conversions in it. It also offers an option to send the links of converted files to registered email addresses. Apart from MKV and MP4, it can also convert videos of 3GP, AVI, FLV, MPG, MOV, etc., formats. Now, follow the below steps.

How to convert MKV to MP4 online using zamzar.com:

Start this website and click on the Choos Files button to load MKV video files.
Now, choose MP4 format from the Format menu.
Next, click on the Convert Now button to start the conversion process.

Limitations:

The website only lets users perform 3 file conversions in a day. To remove this limitation, users need to purchase its premium version.

Final Thoughts:

It is another good MKV to MP4 online converter service that offers all the tools to quickly convert MKV videos to MP4 format.

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converter.app

converter.app is another free MKV to MP4 online converter service. This service comes with a dedicated MKV to MP4 converter tool that can convert one MKV video to MP4 at a time. Plus, large MKV videos of up to 1 GB size are also supported by it. This service doesn’t impose any file conversion restrictions, unlike other similar websites. Now, follow the below steps.

How to convert MKV to MP4 online using the converter.app:

Visit this website using the given link.
After that, drag and drop on MKV video on its interface.
Next, let this service perform the conversion process.
Lastly, click on the Download button to locally save the converted MP4 videos.

Additional Features:

This website can also be used to convert Documents, eBooks, and Audio files of various formats.

Final Thoughts:

It is a straightforward MKV to MP4 online converter website that can convert MKV videos to MP4 without much hassle.

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convertfiles.com

convertfiles.com is yet another free MKV to MP4 online converter service. This website can also be used as a universal file converter as it can convert video files, audio files, eBooks, documents, etc., into various formats. By using the Video section of this website, users can perform MKV to MP4 conversion. Although, it can only convert the format of one file at a time. Plus, options to adjust the video parameters are also missing. Before starting the conversion process, users need to enable the send a download link option to get the links of converted files to their email accounts. Now, follow the below steps.

How to convert MKV to MP4 online using convertfiles.com:

Launch this website and open up its video converter section.
Now, select MKV as the Input Format and MP4 as the Output Format.
Next, click on the Browse button to load one MKV video file.
In the end, start the conversion process by clicking on the Convert button.

Additional Features:

As mentioned earlier, this website comes with multiple online converters such as Drawing Converter, Presentation Converter, e-Book Converter, and more.

Final Thoughts:

It is another straightforward MKV to MP4 online converter that anyone can use for free and perform video format conversions.

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mp4.to

mp4.to is another free MKV to MP4 online converter website. This service carries multiple online file conversion tools one of which is MKV to MP4. It is a simple tool that can convert one or more MKV videos to MP4. Although, the free version of this tool requires credits to perform batch video conversion. The good thing about this service is its ability to support video files of up to 2 GB size. Now, follow the below steps.

How to convert MKV to MP4 online using mp4.to:

Start this website and open up the MKV to MP4 tool.
Now, drag and drop one MKV video on its interface.
At last, click on the Convert files button to start the conversion process.

Additional Features:

On this website, users can find online PDF Convert, Word Convert, PNG Convert, WebM Convert, etc., tools.

Final Thoughts:

It is another good MKV to MP4 online converter website that offers a simple MKV to MP4 conversion process.

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convertio.co

convertio.co is another free MKV to MP4 online converter service. Using this online service, users can batch convert MKV video files to MP4 video format. It can also be used to perform video format conversions between MOV, AVI, M4V, FLV, OGV, etc., video formats. Plus, a good set of audio and image files can also be converted through this website. A Settings panel is also present on it that allows users to manually adjust the video codec, frame rate, resolution, etc., video properties. Now, check out the below steps.

How to convert MKV to MP4 online using convertio.co:

Visit this website using the provided link.
After that, upload one or more MKV videos.
Now, choose MP4 as the output video format.
Next, go to Settings to adjust output video parameters if you want.
In the end, click on the Convert button to start the conversion process.,

This website can also fetch videos from cloud storage sources like Google Drive and Dropbox.

Additional Features:

Using the additional feature of this website, users can convert Ebooks, convert fonts, extract text from images, etc.

Limitations:

Like other similar websites, it also imposes some restrictions on its free version such as limited conversions in a day, limited concurrent conversions, limited cloud storage, etc.

Final Thoughts:

It is another capable MKV to MP4 online converter service that can quickly convert multiple MKV videos to MP4 format.

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media.io

media.io is yet another free MKV to MP4 online converter service. It is a simple media converter service that can convert MKV, MOV, FLV, DIVX, MPG, etc., video files to MP4 format. Plus, it can fetch both locally stored and cloud-stored (Google Drive and Dropbox) video files. Some Settings to manually adjust video parameters (video encoder, frame rate, resolution, and bitrate) are also present in it. Now, check out the below steps.

How to convert MKV to MP4 online using media.io:

Start this website and click on the Add Files button.
Next, add one or more MKV videos.
Now, choose the output video format and adjust the video parameters.
In the end, start the conversion process by clicking on the Convert button.

Additional Features:

This website also offers online media editing, compression, conversion, and creation tools.

Limitations:

Using the free version of this website, users can perform up to 25 video conversions of up to 100 Mb size.

Final Thoughts:

It is a simple-to-use MKV to MP4 online converter website through which users can easily convert as well as edit MKV videos.

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online-convert.com

online-convert.com is a free online file converter service that can also be used as MKV to MP4 converter service. On this website, users can load local as well as cloud media files. Plus, options to adjust video parameters (resolution, aspect ratio, frame rate, etc.) are also provided by it. Now, follow the below steps.

How to convert MKV to MP4 online using online-convert.com:

Go to this website and open up the MKV to MP4 converter.
Now, load one or more MKV videos.
Next, go to Optional Settings to adjust the output video parameters.
Lastly, click on the Start button to get output MP4 videos

Additional Features:

Using the additional tools of this service, users can perform image compression, video compression, text extraction, webservice conversion, etc., tasks.

Final Thoughts:

It is another capable MKV to MP4 online converter service that anyone can try who wants to quickly convert MKV videos to MP4 format.

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freefileconvert.com

freefileconvert.com is the last free MKV to MP4 online converter service. It is another simple online file converter website that can batch convert up to 5 MKV videos to MP4 and other supported video formats. Plus, it can fetch video files from local as well as cloud storage services. Now, follow the below steps.

How to convert MKV to MP4 online using freefileconvert.com:

Start this website and load one or more MKV videos.
Now, go to the Output format section to select MP4 as the output.
Next, choose MP4 as the output video format.
In the end, click on the Convert button.

Additional Features:

This website also offers additional online file converters such as Document Converter, Archive Converter, Presentation Converter, Ebook Converter, etc.