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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 MacOS Linux
Version:9.8.0
Released:Jan 22, 2017
File size:14.4MB
8.7/10
107 votes




MKVToolNix screenshot
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Latest version

9.8.0 (January 22, 2017)



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Visit developer's site

Download MKVToolNix 9.8.0  [14.4MB]  [Win]

Download MKVToolNix 9.8.0 64-bit  [14.8MB]  [Win64]



Download portable, Mac, Linux and other versions

Download MKVToolNix 9.8.0 portable  [12.5MB]  [Win]

Download MKVToolNix 9.8.0 portable 64-bit  [13.1MB]  [Win64]

Download MKVToolNix Mac version  [19.2MB]  [Mac]

Download MKVToolNix Linux version  [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 9.8.0 "Kuglblids" 2017-01-22

## Important notes

* build system: the included version of the "drake" build tool has been removed. Since Ruby 2.1 rake has supported parallel builds, too. The MKVToolNix build system has been adjusted to enable parallel builds by default.

## New features and enhancements

* mkvmerge: VobSub in Matroska: mkvmerge will now create and use a default index for VobSub tracks read from Matroska files that are missing their CodecPrivate element (which normally contains said index). Implements #1854.
* GUI: added checks for several common problems with the installation. These checks will be executed when the GUI starts, and any problems will be reported to the user.
* mkvmerge: added the ISO 639-2 language codes "qaa" and "qad" (both are titled "reserved for local use") as both are used often in France. See #1848 for more information.
* mkvmerge: the JSON identification result now includes a track's codec delay if set (only for Matroska source files). The JSON schema version has been bumped to 6.
* mkvmerge: MPEG TS: added a workaround for files where the subtitle packets are multiplexed properly, but where their timestamps are way off from the audio and video timestamps. Implements #1841.
* mkvmerge: added support for Digital Video Broadcasting (DVB) subtitles (CodecID `S_DVBSUB`). They can be read from MPEG transport streams and from Matroska files. Implements #1843.

## Bug fixes

* mkvmerge: MP4 reader: when an MP4 file contained fewer entries for timestamps than frames (which they never should), mkvmerge would use 0 as the timestamp for all the other frames. This resulted in effects such as the last frame of an output file having a timestamp of 0 and in split files having a much longer duration than they should have. Fixes #1847.
* GUI: the cache cleanup process that's run automatically when the GUI starts no longer blocks file identification until it is finished. Additionally the process will only be run once per release of MKVToolNix. Fixes #1860.
* GUI: certain failures during file identification that can be traced to broken installations (e.g. mkvmerge being too old) won't be stored in the cache anymore. Without this fix the GUI would still use the cached failed identification result even though the underlying might have already been fixed.
* mkvmerge: fixed that the error message "not enough space on disk" was shown twice on some operating systems. Fixes #1850.
* mkvmerge, Matroska: if a codec delay is set for a track in the input file, it is kept. Fixes #1849.
* GUI: multiplexer: changing default values in the preferences (e.g. the default track language to set) did not affect files whose identification results had already been cached.
* mkvmerge, MP4: fixed detection of MP3 audio when the object type ID in the ESDS signals MP2 and the track headers have invalid values for number of channels or sampling frequency. Fixes #1844.

## Build system changes

* nlohman json-cpp: configure now looks for a system-wide installed version of the nlohmann json-cpp header-only library. If one is found, it is used; otherwise the included version will be used. Implements #1858.
* If MKVToolNix is built with rake v10.0.0 or newer, its "multitask" feature will be turned on allowing automatic parallel builds.
* CURL is no longer used by MKVToolNix and is therefore not required for building anymore.

## Other changes

* GUI: the update check now uses Qt's networking classes instead of CURL.
* The command line option "--check-for-updates" has been removed, even though the deprecation warning in release 9.7.0 stated that it would be removed in 2018.

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
View all guides with guide description here



Acronyms / Also Known As

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



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108 comments, Showing 1 to 5 comments

I have enjoyed using this for years. Until i recently downloaded the more recent versions and found the tool i used the most, mmg.exe is no longer included! The developer seems to have dropped the most used tool from this package, with, i suppose, a view to forcing us onto the less intuitive gui .
No thanks. I decided to uninstall and go back to version 8.20 which works very well and had the old, intuitive and great interface and features.
Shame.



Apr 10, 2016 Version: 9.0.1 OS: Windows 7 64-bit Ease: 6/10 Functionality: 4/10 Value: 8/10 Overall: 4/10



@Ally68
Mediainfo supports since v0.7.80 the statistic tags of Mkvmerge, it uses them for more precise bitrate calculation per track and now the tags aren't showed in the general section anymore (I didn't like those capital letter tags too). So you don't need to add a commandline option to remove them. The statistic tags are important for Mediainfo to calculate the bitrate of each track, if all tracks in the file have variable bitrate. Without the statistic tags Mediainfo doesn't show the bitrate per track, it shows just the overall bitrate. Also Mediainfo didn't show bitrate per track in a MKV file with combination of AVC and AAC at cbr, but now due to statistic tags it does.



Dec 3, 2015 Version: 8.3.0 OS: Windows 10 64-bit Ease: 10/10 Functionality: 8/10 Value: 9/10 Overall: 8/10



@ndjamena
And in this 'permanent comment section' I wrote all my votes about this software... 10-10-10-10
Then, I'm not interested between the new or the old GUI; thanks to the developer for any improvements and if he wants change GUI I'll simply get use to it.
Only asked about a setting that maybe I didn't find. However, I referred to these little windows that appear when mouse passes over an item: http://postimg.org/image/han6cu55d/



Oct 17, 2015 Version: 8.4 OS: Windows 7 64-bit Ease: 10/10 Functionality: 10/10 Value: 10/10 Overall: 10/10



***For Ally68***

You can disable the generation by passing mkvmerge the option --disable-track-statistics-tags. In mmg you can add that option via the Muxing → Add command line options dialog.

Note that if you re-mux a file containing these tags then you have to disable reading tags fromt the source file in addition to disabling the generation of new statistics tags with --disable-track-statistics-tags



Oct 17, 2015 Version: 8.4.0 OS: Windows 7 64-bit Ease: 10/10 Functionality: 10/10 Value: 10/10 Overall: 10/10



Sorry to disagree ndjamena, but when "something that's new and not even remotely finished yet"
shouldn't be forcefully implemented. I'm still using 7.90, because my muxing needs are very simple
and the new Gui design, at least for me, extremely complicated.



Oct 16, 2015 Version: 8.40 OS: Vista 64-bit Ease: 8/10 Functionality: 6/10 Value: 10/10 Overall: 8/10


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