mkv

.mkv — Matroska Video Container

Matroska.org · 2002

Developer

Matroska.org

What is a .mkv file?

MKV (Matroska Video) is an open-source multimedia container format that can hold virtually unlimited audio, video, and subtitle tracks in a single file. Named after Russian nesting dolls (Matryoshka), MKV is prized by video enthusiasts for its flexibility, supporting virtually any video codec (H.264, H.265, VP9) and audio format (AAC, FLAC, DTS). It is the format of choice for high-definition video, Blu-ray rips, and anime fansubs.

Programs That Open .mkv Files

Platform	Program
Windows	VLC Media Player	Free
	PotPlayer	Free
	MPC-HC	Free
macOS	VLC Media Player	Free
	IINA	Free

Common Problems with .mkv Files

⚠️ Cannot open .mkv file

Install one of the recommended programs listed above. For a free option, try the first free program in the list.

⚠️ .mkv file is corrupted

Try re-downloading the file. If the file was transferred, ensure the transfer completed without errors.

Frequently Asked Questions

What program opens .mkv files?▼

.mkv files can be opened with several programs. VLC Media Player is one of the most popular choices.

Is .mkv a safe file format?▼

Generally yes, .mkv files are safe to open with appropriate software.

Can I convert .mkv to another format?▼

Yes, there are many online and offline tools available to convert .mkv files. Check the conversion section above for specific methods.

Technical Details

Matroska Video Container files use the video/x-matroska MIME type and were first introduced in 2002 by Matroska.org. The file can be identified by its signature: 1A 45 DF A3.

Did You Know?

Matroska Video Container was first released in 2002 by Matroska.org

Security Information

.mkv files are generally safe to open. However, always ensure your software is up to date to protect against potential vulnerabilities.