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MKVToolNix is a set of tools to create, alter, split, join and inspect Matroska files(mkv). With these tools one can get information about (mkvinfo) Matroska files, extract tracks/data from (mkvextract) Matroska files and create (mkvmerge) Matroska files from other media files. Matroska is a multimedia file format aiming to become THE new container format for the future. Use MKVCleaver or gMKVExtractGUI to extract/demultiplex mkv video and audio files.
Free software
OS:
File size: 25MB
Portable version
Other versions
Old versions
Version history
OS:
File size: 25MB
Portable version
Other versions
Old versions
Version history
Screenshots
Latest version
Download
Download MKVToolNix 78.0 Windows 64-bit 24MB Win64
Download MKVToolNix 78.0 Windows 25MB Win
Download MKVToolNix 78.0 Mac 64-bit 36MB Mac64
Download MKVToolNix 78.0 Linux 64-bit 59MB Linux64
Download Portable and other versions
Download MKVToolNix 78.0 Portable Windows 24MB Win Portable
Download MKVToolNix for Windows 7 Win7 Portable
Download old versions
Software License
Supported operating systems
Windows Mac OS Linux More information and other downloads
Download mkclean 0.9.0 Win64, it is a command line tool to clean and optimize Matroska files.
Download mkvalidator 0.6.0 Win64, it is a command line tool to verify Matroska and WebM files.
Download mkvalidator GUI Win64, it is a frontend for mkvalidator. Requires .NET 4.8.
Use MKVCleaver or gMKVExtractGUI to extract/demultiplex mkv video and audio files.
Download jMkvpropedit here, a GUI for mkvpropedit. Set default audio, video tracks.
Download mkvalidator 0.6.0 Win64, it is a command line tool to verify Matroska and WebM files.
Download mkvalidator GUI Win64, it is a frontend for mkvalidator. Requires .NET 4.8.
Use MKVCleaver or gMKVExtractGUI to extract/demultiplex mkv video and audio files.
Download jMkvpropedit here, a GUI for mkvpropedit. Set default audio, video tracks.
Version history / Release notes / Changelog / What's New
# Version 78.0 "Running" 2023-07-02
## New features and enhancements
* MKVToolNix GUI: header editor: for files that only contain legacy track language elements but no IETF language elements the header editor will now derive the IETF language elements from the legacy elements. See #3557.
* AppImage: the AppImage is now built on AlmaLinux 8 with Qt 6.5.1. This means that the minimum glibc version this AppImage is compatible with has also been bumped, to v2.28. The oldest Debian coming with this version is Debian 10 "Buster"; for Ubuntu it's 18.10 "Cosmic Cuttlefish".
* Windows installer: the installer will now remove the file `dataportable-app` if it's present in the installation directory as its presence would signal to the app to run in portable mode, requiring write access to its base directory. This fixes some installation issues that could occur when a user extracted a portable app archive into a folder like `C:Program FilesMKVToolNix`. Also added an installation check for the same issue. See #3558.
## Bug fixes
* all: Linux: if initializing the locale system based on the system's settings fails, e.g. if environment variables such as `LC_ALL` have been set to `fr_FR.UTF-8` but the locale for `fr_FR.UTF-8` hasn't been built, MKVToolNix will try to fall back to `en_US.UTF-8` first & `C.UTF-8` second. If neither of the three succeeds, an error message will be shown, and the program will abort. This fixes the programs not catching an exception from the `boost::filesystem` library which doesn't cope with mis-configured locale systems well. Workaround for #3574.
* mkvmerge: sorting tracks by type did not work properly when some tracks weren't copied. Part of the fix of #3567.
* mkvmerge: track numbers in the destination file were assigned out-of-order when the track order in the source files differs from the one in the destination file. Now they're assigned sequentially in the order the tracks appear in the destination file again. Part of the fix of #3567.
* MKVToolNix GUI: under certain circumstances the GUI would try to display error messages from a secondary thread, which isn't allowed in Qt, causing to program to either hang or outright crash. Part of the fix of #3556 & #3561.
* MKVToolNix GUI: the GUI will check for several potential installation issues wrt. to having write access to certain directories (system's temporary directory, MKVToolNix's file identification cache directory and others) & display proper error messages if not. Part of the fix of #3556 & #3561.
* MKVToolNix GUI: header editor: fixed the application crashing whenever you change a property below the "segment information" node. This bug was introduced in v77. Fixes #3556.
* MKVToolNix GUI: header editor: when reading files that only contain legacy track language elements but no IETF track language elements, the header editor was showing all tracks as having "English" as the language. This bug was introduced in v77. Fixes #3557.
* MKVToolNix GUI: header editor: when a legacy track language element contains a country code (e.g. `fr-CA`), the header editor was wrongfully using `und` = "undetermined" as the language for that element. Now it'll use the language from the language/country pair, which would be `fr` in the earlier example. Part of the fix of #3557.
* MKVToolNix GUI: header editor: the keyboard shortcuts from the "modify selected track" sub-menu didn't work right after opening a file. They only started working after opening the "header editor" menu. Fixes #3573.
* AppImage: fixed the GUI resources (e.g. icons) not being found.
* AppImage: the Qt plugins required for using compose key/dead keys are now included. Fixes #3577.
## Build system changes
* The compilation database (`compile_commands.json`) is now always built. The variable `BUILD_COMPILATION_DATABASE` is not evaluated anymore.
## New features and enhancements
* MKVToolNix GUI: header editor: for files that only contain legacy track language elements but no IETF language elements the header editor will now derive the IETF language elements from the legacy elements. See #3557.
* AppImage: the AppImage is now built on AlmaLinux 8 with Qt 6.5.1. This means that the minimum glibc version this AppImage is compatible with has also been bumped, to v2.28. The oldest Debian coming with this version is Debian 10 "Buster"; for Ubuntu it's 18.10 "Cosmic Cuttlefish".
* Windows installer: the installer will now remove the file `dataportable-app` if it's present in the installation directory as its presence would signal to the app to run in portable mode, requiring write access to its base directory. This fixes some installation issues that could occur when a user extracted a portable app archive into a folder like `C:Program FilesMKVToolNix`. Also added an installation check for the same issue. See #3558.
## Bug fixes
* all: Linux: if initializing the locale system based on the system's settings fails, e.g. if environment variables such as `LC_ALL` have been set to `fr_FR.UTF-8` but the locale for `fr_FR.UTF-8` hasn't been built, MKVToolNix will try to fall back to `en_US.UTF-8` first & `C.UTF-8` second. If neither of the three succeeds, an error message will be shown, and the program will abort. This fixes the programs not catching an exception from the `boost::filesystem` library which doesn't cope with mis-configured locale systems well. Workaround for #3574.
* mkvmerge: sorting tracks by type did not work properly when some tracks weren't copied. Part of the fix of #3567.
* mkvmerge: track numbers in the destination file were assigned out-of-order when the track order in the source files differs from the one in the destination file. Now they're assigned sequentially in the order the tracks appear in the destination file again. Part of the fix of #3567.
* MKVToolNix GUI: under certain circumstances the GUI would try to display error messages from a secondary thread, which isn't allowed in Qt, causing to program to either hang or outright crash. Part of the fix of #3556 & #3561.
* MKVToolNix GUI: the GUI will check for several potential installation issues wrt. to having write access to certain directories (system's temporary directory, MKVToolNix's file identification cache directory and others) & display proper error messages if not. Part of the fix of #3556 & #3561.
* MKVToolNix GUI: header editor: fixed the application crashing whenever you change a property below the "segment information" node. This bug was introduced in v77. Fixes #3556.
* MKVToolNix GUI: header editor: when reading files that only contain legacy track language elements but no IETF track language elements, the header editor was showing all tracks as having "English" as the language. This bug was introduced in v77. Fixes #3557.
* MKVToolNix GUI: header editor: when a legacy track language element contains a country code (e.g. `fr-CA`), the header editor was wrongfully using `und` = "undetermined" as the language for that element. Now it'll use the language from the language/country pair, which would be `fr` in the earlier example. Part of the fix of #3557.
* MKVToolNix GUI: header editor: the keyboard shortcuts from the "modify selected track" sub-menu didn't work right after opening a file. They only started working after opening the "header editor" menu. Fixes #3573.
* AppImage: fixed the GUI resources (e.g. icons) not being found.
* AppImage: the Qt plugins required for using compose key/dead keys are now included. Fixes #3577.
## Build system changes
* The compilation database (`compile_commands.json`) is now always built. The variable `BUILD_COMPILATION_DATABASE` is not evaluated anymore.
View full changelog
Sections/Browse similar tools
Alternative to MKVToolNix
MetaFox
MKVcleaver
MKVExtractGUI and MKVE Wizard
OGMcleaver
Guides and How to's
How to cut/split/extract parts from a mkv including all audio and subtitle tracks
- ReadHow to rip a Blu-ray disc and remux it to MKV
- ReadMKVToolNix video tutorials
View all guides with guide description here
Acronyms / Also Known As
Download MKVToolNix Portable download from the Download links under Download and Download other versions!
Notify me when software updated or report software
| 195 reviews, Showing 1 to 5 reviews |
Scrolling in the main window now works badly.
Review by hevron on
May 2, 2023 Version: 76.0.0
OS: Windows 10 64-bit Ease of use: 8/10
Functionality: 8/10
Value for money: 8/10
Overall: 8/10
Can't merge new audio tracks into 2160p, HDR10, Dolby Vision file. Error in the same place 88%:
Failed to write to destination file: 112 ( 5 4 > A B 0 B > G => )
Failed to write to destination file: 112 ( 5 4 > A B 0 B > G => )
Review by hevron on
Apr 26, 2023 Version: 75.0.0
OS: Windows 10 64-bit Ease of use: 10/10
Functionality: 10/10
Value for money: 9/10
Overall: 9/10
@aedipuss @phillia
it work great, never know something like this exist.
thank you thank you.
it work great, never know something like this exist.
thank you thank you.
Review by cz0 on
Feb 28, 2023 Version: 74.0.0
OS: Windows 8 64-bit Ease of use: 10/10
Functionality: 10/10
Value for money: 10/10
Overall: 10/10
Thanks again for this wonderful software since I am an MKV lover. I hope one day this software could do even more amazing things such as muxing to an AVCHD format or Bluray...hint hint lol.
Review by monroejock on
Feb 27, 2023 Version: Latest`
OS: Windows 10 64-bit Ease of use: 10/10
Functionality: 10/10
Value for money: 10/10
Overall: 10/10
cz0 - use the forum for questions/requests.
check the forum when a new version is released. qt5 versions get posted like this one. https://forum.videohelp.com/threads/405407-NON-OFFICIAL-Windows-builds-of-MKVtoolnix/page4#post2681027
check the forum when a new version is released. qt5 versions get posted like this one. https://forum.videohelp.com/threads/405407-NON-OFFICIAL-Windows-builds-of-MKVtoolnix/page4#post2681027
Review by aedipuss on
Feb 27, 2023 Version: 74.0
OS: Windows 8 64-bit Ease of use: 10/10
Functionality: 10/10
Value for money: 10/10
Overall: 10/10
| 195 reviews, Showing 1 to 5 reviews |
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Version history available = Complete changelog on our site.
= Windows version available. = Mac OS version available. = Linux version available.Our hosted software are virus and malware scanned with several antivirus programs using www.virustotal.com. (NOTE! Just one virustotal warning is 99.9% a false positive. And some software might receive 2-6 warnings but it's if they are not all same virus/trojan then it's 99% false positives.)
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