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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:Windows Mac Linux
Version:21.0.0
Released:Feb 24,2018
File size:14.4MB
8.7/10
133 votes

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Screenshots

MKVToolNix screenshot
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MKVToolNix screenshot 2
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MKVToolNix screenshot 3
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Latest version

21.0.0 (February 24, 2018)




Download


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Download MKVToolNix 21.0.0  [14.4MB]  [Win]

Download MKVToolNix 21.0.0 64-bit  [14.9MB]  [Win64]




Download Portable, Mac, Linux and other versions

Download MKVToolNix 21.0.0 portable  [12.4MB]  [Win]  [Portable]

Download MKVToolNix 21.0.0 portable 64-bit  [13.1MB]  [Win64]  [Portable]

Download MKVToolNix 21.0.0 Mac  [22.1MB]  [Mac]

Download MKVToolNix 21.0.0 Linux  [Linux]




Download old versions


Download MKVToolNix old versions




Supported operating systems

WinWindows MacMac OS LinuxLinux




License

Free software




More information and other downloads

Use MKVCleaver or gMKVExtractGUI to extract/demultiplex mkv video and audio files.

Download jMkvpropedit here, a GUI for mkvpropedit. Set default audio, video tracks.

If you prefer the old mmg/mkvmergegui then download MKVtoolnix version 8.3.0 or older.




Version history / Release notes / Changelog


# Version 21.0.0 "Tardigrades Will Inherit The Earth" 2018-02-24

## New features and enhancements

* mkvmerge: track statistics tags: the `TagDefault` element will not be written anymore as it was always set to the default value `1` anyway. Implements #2202.
* mkvmerge, MKVToolNix GUI: JSON files can now contain C++-style line comments outside of strings (e.g. something like this: `// this is ignored`). Such comments, even though not part of the official JSON specifications, are now ignored when reading JSON files.
* MKVToolNix GUI: chapter editor: opening a Matroska file without chapters in it will now open the file in an empty chapter editor instead of showing an error message. Implements #2218.
* MKVToolNix GUI: an "info" tool has been added, replacing the functionality of mkvinfo's GUI. The functionality is not on par yet but will be for release v22. Implements most of the functionality of #2104.

## Bug fixes

* build system: `configure` was treating `--disable-ubsan` and `--disable-addrsan` the same as `--enable-ubsan` and `--enable-addrsan`. Fixes #2199.
* build system: an error message is output if a command to execute is not found instead of silently failing.
* build system: in addition to looking for the `gettext` C function and library, `configure` now also verifies the presence of the `msgfmt` program instead of simply relying on it.
* mkvmerge: appending files with additional parts at the same time was broken if more than one additional part was appended (e.g. when appending files from DVDs with something like `'(' VTS_01_1.VOB VTS_01_2.VOB ')' + '(' VTS_02_1.VOB VTS_02_2.VOB ')'`). In such a situation the content from files `VTS_02_1.VOB` and `VTS_02_2.VOB` where laid out in parallel to the content from the earlier files.
* mkvmerge: FLV reader: a single invalid AAC frame was written for AAC audio tracks with codec initialization data longer than five bytes.
* mkvmerge: FLV reader: timestamps will be normalized down to 0. Fixes #2220.
* mkvmerge: MP4 reader: if an AAC track doesn't contain an AAC-specific decoder configuration in the ESDS portion, then a default decoder configuration will be generated based on the track's header data instead of skipping the track. Fixes #2221.
* mkvmerge: MP4 reader: fixed reading HEVC/h.265 video tracks if they're stored as Annex B byte streams inside MP4. Fixes #2215.
* mkvmerge: Ogg Opus reader: mkvmerge will now emit a warning instead of aborting when it encounters an Ogg Opus page with no data in the packet. Fixes #2217.
* mkvmerge, mkvextract: Matroska parser: fixed a segmentation fault that occurred whenever the first level 1 element after resyncing after an error in the file structure isn't a cluster. Fixes #2211.
* mkvmerge, MKVToolNix GUI multiplexer & header editor: fixed a crash during file type detection for attachments if MKVToolNix is installed in a path with non-ASCII characters (e.g. German Umlauts). Fixes #2212.
* mkvinfo: the `--hex-positions` parameter did nothing in summary mode.
* mkvinfo: Windows: line endings will be written as `\r\n` (carriage return & line feed) again instead of just `\n` (line feed).
* mkvpropedit: adding track statistics tags: for tracks with content encoding (compression) mkvpropedit is now accounting the uncompressed number of bytes, not the encoded (compressed) number of bytes. Fixes #2200.
* MKVToolNix GUI: multiplexer: the subtitle character set can now be set for appended subtitle files, too. Fixes #2214.
* MKVToolNix GUI: multiplexer: when appending, all tracks appended to disabled tracks will start out disabled, too.

## Build system changes

* mkvinfo: the GUI portion has been removed. mkvinfo is now a pure command-line program again.

View full changelog




Sections/Browse similar tools






Alternative to MKVToolNix


MKVcleaver



MKVExtractGUI and MKVE Wizard



OGMcleaver







Guides and How to's


How to add subtitles to .mkv files using mkvmerge GUI

- Read

How to convert MKV to DivX / Demultiplex MKV to video and audio files

- Read

How to convert MKV to MPG (VCD,SVCD or DVD)

- Read

How to convert MKV video files to AVI

- Read

How to cut/split/extract parts from a mkv including all audio and subtitle tracks

- Read

How to rip a Blu-ray disc and remux it to MKV

- Read

Using Handbrake to Burn in Subtitles from MKV to MP4

- Read

YouTube MKVToolNix video tutorials



View all guides with guide description here




Acronyms / Also Known As

mkvmerge, mkvmerge gui,mmg, mkvmergegui, mkvextract, mkvpropedit, mkvinfo, mkvtoolnix gui, mkvtoolnixgui



Download MKVToolNix portable download



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134 reviews, Showing 1 to 5 reviews

The GUI versions from 11.0 do not run on Windows XP with no warning! Although the console program runs fine.
So it took me an hour to find out that windowsXP is no longer supported.

That seams strange to me.



Jan 22, 2018 Version: 20.0.0 OS: WinXP Ease of use: 10/10 Functionality: 10/10 Value for money: 1/10 Overall: 1/10



Great tool. Version 10 by the way is the last build to work with XP, if I'm not mistaken. Thanks.


Dec 16, 2017 Version: 18 OS: Windows 10 64-bit Ease of use: 10/10 Functionality: 10/10 Value for money: 10/10 Overall: 10/10



digitalhobo .... PS

If you don't see multiple tabs when you drop multiple files...

Go to the preferences page - select Multiplexer
change the "when dropping files" option to "create one new multiplex settings tab for each file"




Dec 15, 2017 Version: V18 OS: Windows 7 64-bit Ease of use: 9/10 Functionality: 9/10 Value for money: 9/10 Overall: 9/10



Digitalhobo....

This sounds similar to an issue I had a short time ago.

Drag and drop your files individually as normal
(up to 40 files seems ok - after that it can really start to slow down for this stage)
Then when its made all the tabs - go to the "multiplexer" drop down and select
"actions for all tabs" then "start multiplexing"
(do NOT use the main multiplex button)

It will then treat each file as an individual job.
You can set options as normal and they will be applied to each file.

It works really well but slow (as I mentioned below) if you have very many files.




Dec 15, 2017 Version: V18 OS: Windows 7 64-bit Ease of use: 10/10 Functionality: 10/10 Value for money: 10/10 Overall: 10/10



Great tool for doing what its supposed to do. 10/10.

But I'm having a hard time creating multiple jobs in the job queue without ending up with one large file.

I've got a bunch of albums in DVD-Audio format. I want just the audio files. So I extracted the .dts audio tracks from the MKVs and want to put them back into an MKA container. Ok, no problem. I can do all of the tracks into one "album" MKA, but thats not what I want. I'd prefer Track1.mka, Track2.mka, Track3.mka, etc. But I can't quite figure out how to queue up each of those individual jobs. Every time I add 10 tracks to the queue, I end up with one large file.

What am I missing?

Thanks!



Dec 4, 2017 Version: 18.0.0 OS: Windows 10 64-bit Ease of use: 9/10 Functionality: 8/10 Value for money: 10/10 Overall: 10/10


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