The Matroska Multimedia Container is a free, open-standard container format, a file format that can hold an unlimited number of video, audio, picture, or subtitle tracks in one file. It is a universal format for storing common multimedia content, like movies or TV shows. 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. Matroska file extensions are .MKV for video (which may or may not include subtitles and audio), .MK3D for stereoscopic video, .MKA for audio-only files, and .MKS for subtitles only.
Filename extension .mkv .mk3d .mka .mks
Internet media type video/x-matroska audio/x-matroska
Type of format Container format
Container for Multimedia
Best MKV Player - VLC media player:
Best MKV Editors - MKVToolNix: