MKVToolNix, the free and open source Matroska libraries and tools, has reached the 9.9.0 release a few days ago. Here’s how to install it via PPA in Ubuntu 16.04, Ubuntu 16.10, and Linux Mint 18.

MKVToolNix 9.9.0 release highlights:

• chapter editor: added a character set selection in the preferences for text files.
• multiplexer: added a column “character set” to the “tracks, chapters and tags” list view showing the currently selected character set for that track.
• mkvmerge: added an –engage option “all_i_slices_are_key_frames”
• mkvmerge: MP4 reader: “ctts” version 1 atoms are now supported.
• DVB subtitle tracks whose CodecPrivate data now is up to the proper five bytes long
• Various MP4 input module fixes and other fixes.

How to Install MKVToolNix 9.9.0 via PPA:

The new release is available in its official Linux repository for Ubuntu 16.04, and Ubuntu 16.10.

1. Open terminal from your app launcher or via Ctrl+Alt+T shortcut key. When it opens, run command to add the key:

wget -q -O - https://mkvtoolnix.download/gpg-pub-moritzbunkus.txt | sudo apt-key add -

Type in your password (no visual feedback), and hit enter

2. Then go to System Settings -> Software & Updates -> Other Software tab, click Add and paste following line to add the official repository:

deb http://mkvtoolnix.download/ubuntu/ xenial main

replace xenial (16.04) with yakkety for Ubuntu 16.10.

3. Finally you’re able to upgrade MKVToolNix from previous release via Software Updater

Or install it via commands:

sudo apt update

sudo apt install mkvtoolnix mkvtoolnix-gui

The mkvmerge gui tool MKVToolnix has reached release 6.8.0 recently with tons of bug fixes for the Windows builds and support for h.265/HEVC video.

So far the h.265/HEVC support is only for reading it from elementary streams or from other Matroska files. See the changelog.

Install MKVToolnix:

The official website provides the most recent builds for Ubuntu 13.04 Raring, Ubuntu 12.04 Precise and Ubuntu 13.10 Saucy. To download the .deb, go to bunkus.org/ubuntu/ -> select your release code name -> binary -> os type -> download the package.

For command line, run the commands below in a terminal (Ctrl+Alt+T) window one by one:

sudo add-apt-repository "deb http://www.bunkus.org/ubuntu/saucy/ ./"

wget -O - http://www.bunkus.org/gpg-pub-moritzbunkus.txt | sudo apt-key add -

sudo apt-get update

sudo apt-get install mkvtoolnix mkvtoolnix-gui

NOTE: in the code change the Ubuntu code name saucy to yours.

These commands will add the mkvtoolnix repository, download & import the key, update system package lists and install mkvtoolnix and the gui.

mkvmerge GUI has been updated to version 6.7 recently with enhancements and various bug fixes. This simple tutorial shows you how to install or upgrade it in Ubuntu 13.10, Ubuntu 13.04, Ubuntu 12.10, Ubuntu 12.04 from its official repository.

Changes in mkvmerge GUI:

• fixed faulty timing informations for H264/AVC
• fixed mapping of MKV elements
• support for muxing OPUS/WEBM
• reading of DTS audio tracks for MP4 video files
• improved AAC, AC3 and MP3 header decoding
• enhanced reading of uncompressed PCM audio tracks from QUICKTIME and MP4
• See the release note for details.

How to Install mkvmerge:

Press Ctrl+Alt+T on keyboard to open terminal. When it opens, run commands below one by one to install the tool:

sudo add-apt-repository "deb http://www.bunkus.org/ubuntu/saucy/ ./"

wget -O - http://www.bunkus.org/gpg-pub-moritzbunkus.txt | sudo apt-key add -

sudo apt-get update

sudo apt-get install mkvtoolnix mkvtoolnix-gui

You may replace saucy for Ubuntu 13.10 with raring for Ubuntu 13.04, quantal for Ubuntu 12.10, or precise for Ubuntu 12.04.

For those who hate Linux commands:

1. go to this page

2. select your Ubuntu editon -> binary

3. Choose your system type amd64 (64-bit) or i386 (32-bit). Check it out in System Settings -> Details.

4 Download and install the latest .deb package.

MKVToolNix 6.6.0 was released recently with drag & drop support in the chapter editor. Here’s how to install mkvmerge from official repository in Ubuntu 14.04, Ubuntu 13.10, Ubuntu 13.04, Ubuntu 12.04, Linux Mint 13/14/15/16.

MKVToolNix is a set of tools to create, alter and inspect Matroska files under Linux, other Unices and Windows. They do for Matroska what the OGMtools do for the OGM format and then some. mkvmerge and mkvmerge GUI are part of the mkvtoolnix package, they can read a lot of different multimedia files and put their contents into Matroska files.

To get started, press Ctrl+Alt+T on keyboard to open terminal. When it opens, follow the steps below:

1. Run command to edit source file:

sudo gedit /etc/apt/sources.list

Add following two lines int the end. You may change saucy (for Ubuntu 13.10, Linux Mint 16) to raring (13.04, mint 15), quantal (12.10, mint 14), or precise (12.04, mint 13)

deb http://www.bunkus.org/ubuntu/saucy/ ./
deb-src http://www.bunkus.org/ubuntu/saucy/ ./

2. Download and install the key:

wget -O - http://www.bunkus.org/gpg-pub-moritzbunkus.txt | sudo apt-key add -

3. Install the GUI after checking for updates:

sudo apt-get update; sudo apt-get install mkvtoolnix mkvtoolnix-gui

This will always install the latest MKVToolNix on your system. For Ubuntu 14.04 Trusy, version 6.6.0 has been made into universe repository. Just search for and install it from Ubuntu Software Center.