.mkv
Low riskMatroska Video
An open container that can bundle multiple audio tracks, subtitle streams, and chapter metadata — popular for anime rips and archival recordings.
MIME types
- video/x-matroska
Category
video
What opens this file
- VLC
- mpv
- MKVToolNix
- IINA
- PotPlayer
How to open by OS
Windows
- VLC, mpv, or PotPlayer. Use MKVToolNix for subtitle manipulation.
Mac
- IINA, VLC, or mpv.
Linux
- VLC, mpv, SMPlayer.
Ios
- VLC for Mobile.
Android
- VLC or MX Player.
Safety notes
- The container itself is low-risk; historical issues have been limited to subtitle-handling bugs in specific players.
Common mistakes
- MKV does not play in iOS Photos by default — route it through VLC or convert to MP4 before sharing.
- For broad distribution, remux to MP4; MKV compatibility outside of media-enthusiast circles is patchy.