The Matroska Video file (MKV) is a multimedia format that stores video, audio, images, and subtitle tracks in a single file. MKV is a free-to-use and open standard format that offers support for a wide range of video and audio codecs.
MKV files are not natively supported by all social networks: Facebook supports MKV, but YouTube, Instagram, and Twitter do not. You'll need to convert MKV files to MP4, or another widely supported format, for those platforms. Fortunately, Kapwing's free MKV to MP4 converter makes it that easy. There's no software to download either—convert MKV to MP4 online in just a few clicks.
Why do we recommend converting MKV to MP4 files specifically? Kapwing's video converter prioritizes MP4 because the file type a few advantages when it comes to video:
Kapwing is free to use for teams of any size. We also offer paid plans with additional features, storage, and support.