Convert MKV to MP4 online. Why? MKV or Matroska Video is an open source container format capable of storing various data ranging from audio, video, subtitles, video chapters and menu, among others. It's a versatile video container format. Yet it's not very popular, because MKV isn't an industry standard. So not all media players can play MKV files. In order to make MKV files available, you have to convert MKV to  MP4 online.

Why convert MKV to MP4 instead of other video formats? MP4 is supported across a wide range of devices from smartphone to HDTV, not to mention streaming services and social networks. It has many assets when compared with MKV (MP4 vs MKV). Therefore, many people convert MKV to this format.

Then in order to save money, convert MKV to MP4 online. Here I will show you some online programs to do that.

1. Convert MKV to MP4 Online with "MKV to MP4 Online"

"MKV to MP4 Online" si an MKV to MP4 online website where you can convert MKV to MP4. There is no limit on the tasks you assign. Also, no registration is required to use this MKV to MP4 converter for free online.

The MKV to MP4 conversion process involves two steps.

The first step is uploading your MKV file to "MKV to MP4 Online". You can do this by selecting your file from your computer, Google Drive or Dropbox. Alternatively, you could drag your file from your storage device to this MKV to MP4 converter online.

After clicking Convert, wait for your file to be processed before downloading it to your computer. Then "convert MKV to MP4 online" is finished.

Convert MKV to MP4 Online Free


2. Convert MKV to MP4 Online with "FreeFileConvert"

FreeFileConvert is a multi-purpose digital file converter. As such it handles audio, video, archive and even font conversion. Then how to use it to convert MKV to MP4 online free? Under the Convert tab, select Video Converter. Then select File, URL or Cloud (if you file is in Dropbox or Google Drive).

Convert MKV to MP4 Online

After selecting your output format, hit the "Convert" button and your file will be converted and available for download. At FreeFileConvert you have the option to register and use the convert MKV to MP4 online service.

If you do so, you have the benefit of accessing your recently-converted file from their cloud storage and also receive newsletters updating you on their MKV to MP4 converter online.

3. Convert MKV to MP4 Online with "AConvert"

AConvert is a multi-purpose online converter. So, before starting, you would have to choose the Video option on the left sidebar. Then go on to select File, URL or Cloud Storage as your input source by clicking on the dropdown button on your right. Next, choose your input file and your target format.

Convert MKV to MP4 Online Big Files

When you convert MKV to MP4 online using this website, you can also edit your file. Here you could set your video size, bitrate and frame rate, among others. Like other convert MKV to MP4 online services, your file will be available for download after conversion is complete.

4. Convert MKV to MP4 with "DVDFab Video Converter" 

After talking about so many online MKV to MP4 converters, have you ever found some drawbacks in "convert MKV to MP4 online"? You have to convert MKV to MP4 one by one. Then if you have multiple videos to be converted, more time is needed. Would you like to convert MKV to MP4 in batches? If so, ask for DVDFab Video Converter for help.

This MKV to  MP4 converter provides a free trial of 30 days and it supports a host of input and output formats popularly used by consumers whether for editing or playback. Its speed for MKV to MP4 onversion is fast and error-free, no matter what the file size. Now follow me to learn how to convert MKV to MP4 online with this free software.

(1) Select "Converter" module and load your file

After launching DVDFab 11, clcik the large + sign in the middle of the interface of this MKV to MP4 converter. You may also load your MKV file by clicking on the + Add button below the DVDFab logo.

Convert MKV to MP4 Online  Big Files

(2) Set the ooutput format as "MP4"

With your MKV file loaded, your next step is to select your output video format. Click the "Profile Switcher" and choose "MP4" format in this MKV to MP4 converter.

Online Convert MKV to MP4


There are 8 output video formats provided as shown below. Meanwhile, you can also set the "Audio" format and improve video quality with the option of "Enalrger AI".

Convert MKV to MP4 Online Free


(3) Customize your file with video editor

Now, we begin to edit your video using "Advanced Settings" and "Video Edit" options in this MKV to MP4 converter. 

Convert MKV to MP4 Online


Click "Advanced Settings" button next to the Play button and you can set the codec, video quality, output size, etc, of the video. Also you can custommize Audio and Subttile on the same panel. 


Click the button of "Video Edit" in this MKV to MP4 converter and then you will be allowed to add "Text" and "Image" to your file using the options in the upper-right corner. Then clcik the buttons below as what I have labelled, you are able to adjust video properties, rotate video, crop video, trim video and adjust the playback speed using this MKV to MP4 converter.



(4) Set outout directory and start to convert MKV to M;P4

There are three output directories for you choice. From left to right at the bottom, if you choose  the first option, you can save the file on "Mobile Device". If you click the second, you will be able to save the converted video to a folder on your PC. Then, if you want to upload the converted MKV to MP4  to YouTube, Vimeo or Facebook, choose the third option.

At last, click the button of "Start" and begin to convert MKV to MP4. Then DVDFab Video Converter will work 10 times faster than the normal speed to process your files. Compared with covnerting MKV to MP4 online, this method is safer and easier. Most importantly, it allows you to convert  MKV to MP4 in batches, which cannot be achieved with an online MKV to MP4 converter.

5. Conclusion

Have you had a full picture of how to convert MKV to MP4 online? Use any of the online MKV to MP4 converters I have recommended. If you want to a safe and fast conversion, DVDFab Video Converter is your best friend. For other online and offline MKV to MP4 converters, you can refer to another article.