MKV (Matroska Multimedia Container)

The MKV file format, also known as the Matroska Multimedia Container, is an open-source container format similar to other video and audio container formats and can contain any number of multimedia, video, or audio tracks within the MKV file. It was originally released in 2002.

Like other video file formats, MKV files are binary and enjoy widespread support within video editing software. There is built-in support for playing MKV files within Windows 10 and 11. There are many open-source multiplexers and demultiplexers for converting between MKV and other multimedia formats.