How to convert MKV files to MP4 online?

Step 1.

Upload MKV-file

Click "Choose File" button to select a mkv file on your computer. MKV file size can be up to 50 Mb.
Step 2.

Convert MKV to MP4

Click "Convert" button to start conversion.
Step 3.

Download your MP4

Let the file convert and you can download your MP4 file right afterwards.

Information about MKV and MP4 file formats

Name MKV MP4
Full name MKV - Matroska MP4 - MPEG-4 Part 14
File extension .mkv, .mk3d, .mka, .mks .mp4, .m4a, .m4p, .m4b, .m4r, .m4v
MIME type video/x-matroska, audio/x-matroska video/mp4
Developed by www.matroska.org International Organization for Standardization
Type of format Container format Media container
Description The Matroska Multimedia Container is an open standard free container format, a file format that can hold an unlimited number of video, audio, picture, or subtitle tracks in one file. It is intended to serve as a universal format for storing common multimedia content, like movies or TV shows. MPEG-4 Part 14 or MP4 is a digital multimedia format most commonly used to store video and audio, but can also be used to store other data such as subtitles and still images. Like most modern container formats, it allows streaming over the Internet.MPEG-4 Part 14 or MP4 is a digital multimedia format most commonly used to store video and audio, but can also be used to store other data such as subtitles and still images. Like most modern container formats, it allows streaming over the Internet.
Technical details Matroska is similar in concept to other containers like AVI, MP4, or Advanced Systems Format (ASF), but is entirely open in specification, with implementations consisting mostly of open source software. Most kinds of data can be embedded in MPEG-4 Part 14 files through private streams. A separate hint track is used to include streaming information in the file. The registered codecs for MPEG-4 Part 12-based files are published on the website of MP4 Registration authority (mp4ra.org).
Associated programs VLC Media Player Windows Media Player, RealPlayer, MPlayer, Media Player Classic, VLC Media Player, K-Multimedia Player
Wiki https://en.wikipedia.org/wiki/Matroska https://en.wikipedia.org/wiki/MPEG-4_Part_14