Convert MP4 to MKV

Online video converter

Convert your file from MPEG-4 Video Stream to Matroska Video File with this MP4 to MKV converter.

mkv converter

Or enter URL of the file you want to convert from MP4 to MKV: (e.g. https://example-files.online-convert.com/video/mp4/example_small.mp4)
Or select a file from your cloud storage for a MP4 to MKV conversion:

Choose from Google Drive

Video settings (optional)

Change screen size:

Width: x Height: pixels
Resize handling:
How to handle image resizing.:
Change video bitrate:

Specify kbps for movie: kbps
Change frame rate:
Frames per seconds: per second
Cut video:
Start time: to End time:
Rotate video (clockwise):
Rotate video:
Mirror/flip video:
Mirror/flip video:
Select video codec:
Select a video codec for the conversion:
Crop pixels from:

top top

bottom bottom
left
left

right right
Deinterlace video:

Audio settings (optional)

Audio channel:
Set stereo/mono for the audio channel or disable the audio track.:
Change audio quality:
New audio quality for movie:
Select audio codec:
Select an audio codec for the conversion:
Normalize audio:
Normalize the audio:

Cancel
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Progress:

Total file size: -
Upload rate: -
Time left: --:--:--

Submitting data

Uploading data

To convert in the opposite direction, click here to convert from MKV to MP4:
MKV to MP4 converter

Try the MKV conversion with a MP4 test file

Not convinced? Click on the following link to convert our demo file from MP4 to MKV:
MP4 to MKV conversion with our MP4 example file.

MP4, MPEG-4 Video Stream (.mp4)

MPEG-4 Part 14 files (MP4) are capable of storing multimedia such as audio, video, and subtitles. This file type is commonly used by Apple and other producers of mobile products which allow audio, still images, or video. This includes but is not limited to: audio books, songs, movies, videos, photos, and podcasts. MPEG-4 is the format often used in online streaming of videos. Many MP3 players...
What is MP4

MKV, Matroska Video File (.mkv)

The MKV (Matroska Multimedia Container) is a free and open standard for the storage of video data. There is no limit to the number of audio, video, images, and subtitle tracks the file can contain, meaning it is a convenient way to store movies, entire TV series, and more. The raw format allows the user to jump to all of the individual data tracks. The royalty free Matroska project's technical...
What is MKV