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Convert MP4 to MKV online
To convert small files, use this MP4-to MKV converter online. With it, you can convert video to MKV for free. However, if your file is too big, take a look at the software below.Check out the desktop converter
How to convert MP4 to MKV without losing quality using Movavi Video Converter
Step 1. Download and install the MP4-to-MKV video converter
Get the MKV file converter from the Movavi website and install it following the on-screen instructions. This handy and practical app will let you change the format of your video files in a flash.
Step 2. Add the files you want to convert
Click Add Media and select Add Video to add the videos you want to convert. With the MKV converter from Movavi, you can transcode your entire media library in multiple batches, choosing the settings manually or automatically.
Step 3. Choose a video format
Open the Video tab at the bottom of the application window and find the MKV category. Expand the list and choose one of the MKV presets. If you want to adjust any advanced parameters, access them by clicking the Cogwheel button below the presets panel. If you are converting MKV files to MP4, AVI, 3GP, or any other media format, pick the appropriate preset for your required output format.
Step 4. Convert MP4 to MKV or vice versa
To choose the folder where you want to place the converted files, click the Save to button. Now, click Convert to process the videos. Converting files can take anything from one to several minutes, depending on the file size and the number of the files you’re converting.
The Movavi MKV video converter creates your new file or files in your chosen format automatically. When the process is completed, a folder with the created files opens automatically.
MP4 vs. MKV: A comparison
H.264, H.265, MPEG-2, MPEG-4, H.263, VC-1, Dirac, and others
H.264, H.265, MPEG-4, MJPEG, Theora, VP9, DV, and others
Frequently asked questions
What is the MKV video format?
MKV (short for “Matroska Multimedia Container”) is a free, open-source multimedia container format. An MKV container can hold an unlimited number of video, audio, image, and subtitle tracks in a single file. This is why it enjoys immense popularity with movie enthusiasts who store their vast film collections in this format.
How to convert MP4 to MKV for free?
You can take advantage of the VLC media player as an MP4-to-MKV converter for free. All you need to do is follow these steps.
Install and launch VLC.
Go to Media > Convert / Save.
Click Add and find the video file you want to convert.
Select Convert / Save in the lower portion of the interface.
In another dialog box, click the Wrench icon, choose AVI in the Encapsulation tab, and click Save.
Hit Browse and specify a name for the output file. Make sure the name includes the .mkv extension.
Click Start to convert your video to MKV.
You can also use MP4-to-MKV converter online services, such as cloudconvert.com or convertfiles.com. However, keep in mind that most of these services have restrictions on the number and size of files that can be converted at one time.
Which format is better – MP4 or MKV?
Although both formats are popular, MP4 is supported by a wider range of devices, systems, and platforms. If you consider watching videos on a smartphone or tablet, MP4 is a much safer bet. If you play them back using media applications like VLC and 5KPlayer, MKV can be a sufficient option.
Are MKV files smaller than MP4 files?
No, MKV files are usually larger than MP4 files – owing to the fact that MKV supports multiple audio as well as subtitle tracks and has other additional features. This doesn’t affect quality as both MKV and MP4 videos deliver roughly the same picture. However, you may want to use MP4 files or convert them to MKV and compress them with a dedicated app like Movavi Video Converter.
Why does VLC not play MKV?
This may be due to video and codec issues, damaged or corrupt files, technical glitches, or many other problems. Here’s what you can do to fix it.
Open VLC and go to Tools > Preferences.
Select All in the lower-left corner of the program window.
Click Input / Codecs.
Choose Video codecs and then FFmpeg.
In the right-hand portion of the interface, find Hardware decoding and select the Disable option next to it.
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