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MKVToolNix With GUI For Linux

MKVToolNix-GUI is a set of tools to create, alter and inspect Matroska files under Linux, other Unices and Windows.

The author provides both i386 and Amd64 binaries for MKVToolNix for Debian 11 "Bullseye" (the current stable) and LMDE5.

First you need to import the GPG-key.


Open a terminal window and type:

sudo wget -O /usr/share/keyrings/gpg-pub-moritzbunkus.gpg

Press Enter, done.

Now edit the sources.list file and you need to be root.

sudo su

Press enter and type in your root password and press Enter again.


gedit /etc/apt/sources.list.d/

Press Enter. Then copy and paste the following:

deb [signed-by=/usr/share/keyrings/gpg-pub-moritzbunkus.gpg] bullseye main deb-src [signed-by=/usr/share/keyrings/gpg-pub-moritzbunkus.gpg] bullseye main

Save the file and type exit.

Now type the following command:

apt-get update

Press Enter.

When done, type in the following command:

apt install mkvtoolnix mkvtoolnix-gui

Press Enter, done.

This tool is excellent for extracting subtitles from .mkv files.

Developers website