video format

What is a .MKV file?

MKV is a flexible open container holding multiple video, audio and subtitle tracks — popular for high-quality video.

Full name
Matroska Video
Developed by
Matroska
Released
2002
Extension
.mkv
MIME type
video/x-matroska
Transparency
No

How to open a MKV file

MKV plays in VLC and most modern players.

What MKV files are used for

Sharing & social

Clips that play on every platform.

Editing & post

Footage in production pipelines.

Streaming & web

Embedded and hosted playback.

Strengths & limitations

✔ Strengths✖ Limitations
Open / royalty-freeNo transparency support

Need more than a conversion?

Remove the background from MKV images, upscale to 4K, or generate new visuals with SharkFoto AI.

Frequently asked questions

MKV is a flexible open container holding multiple video, audio and subtitle tracks — popular for high-quality video.

MKV plays in VLC and most modern players.

MKV is optimised for its specific use rather than strictly lossless storage.

Use SharkFoto's free tools — upload your MKV file and convert it to a more convenient format in seconds. It's free, processed securely and never stored.

No — MKV doesn't store transparency; convert to PNG or WEBP if you need it.