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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.

8.8/10
186 votes
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MKVToolNix screenshot

MKVToolNix screenshot 2

MKVToolNix screenshot 3
Latest version

72.0.0 (November 13, 2022)



Download


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Download MKVToolNix 72.0.0 Windows 64-bit  24MB  Win64

Download MKVToolNix 72.0.0 Windows  25MB  Win

Download MKVToolNix 71.1.0 Mac  37MB  Mac

Download MKVToolNix 72.0.0 Linux 64-bit  50MB  Linux64




Download Portable and other versions

Download MKVToolNix 72.0.0 Portable Windows 64-bit  23MB  Win64  Portable

Download MKVToolNix 72.0.0 Portable Windows  24MB  Win  Portable




Download old versions


Download MKVToolNix old versions



Software License

Free software / FOSS (Free download and also Free and Open Source Software)



Supported operating systems

WinWindows MacMac OS LinuxLinux



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.

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



Version history / Release notes / Changelog / What's New


# Version 72.0.0 "Minuano (Six-eight)" 2022-11-13

## New features and enhancements

* mkvmerge: AV1 parser: the variable-width OBU size field will be re-written with minimal length if it's encoded longer than necessary.
* mkvmerge: when splitting is active the program will output the timestamps actually used for making the decision when to split. If GUI mode is active, a specially formatted line `#GUI#splitting_before_timestamp <timestamp>` is output as well. Lines prefixed with`#GUI#` are suitable for machine parsing, won't be translated and are guaranteed not to change in format. Implements #3421.
* MKVToolNix GUI: multiplexer: when dragging & dropping directories to the "attachments" tab, the files contained in those directories will be attached. Implements #3410.
* MKVToolNix GUI: info tool: added information about the file (directory, size, modification timestamp) at the top of each tab. Implements #3407.

## Bug fixes

* mkvmerge: AV1 parser: fixed the parser completely aborting when parsing the OBU size field fails due to there not being enough data to parse. Instead the parser will remember the last known-good position & restart from there after more data is available. Fixes #3431.
* mkvmerge: HDMV PGS subtitles: reverted the change that implemented a heuristic for detecting bogus timestamps & attempting to fix them. This was done to fix #3268. Unfortunately this affected valid subtitle files with intentional huge gaps in timestamps, e.g. forced subtitle tracks. The heuristic has simply been removed, fixing #3392.
* mkvmerge: Matroska reader: fixed reading files with EBML Void elements before the Matroska Segment element.
* mkvmerge: fixed reversed attachment selection: `--attachments !4` would not copy any attachment instead of all attachments but the one with ID 4. Fixes #3427.
* mkvextract: IETF BCP 47/RFC 5646 language tags: mkvextract will now use & prefer IETF BCP 47 track language elements if they're present. Only affects the VobSub & USF subtitle extraction.
* mkvpropedit, MKVToolNix GUI's chapter & header editors: updated the list of deprecated Matroska elements. The applications will no longer try to write those elements, even if they're found in the file to be modified. The programs will no longer abort with error messages such as `assertion "false" failed`. Fixes #3416.
* mkvpropedit, MKVToolNix GUI's chapter & header editors: when the Matroska version numbers stored in the EBML Head element are updated, the updated EBML Head element might be smaller than the existing one. In that case the programs used to shrink the EBML Head & write a small EBML Void element between the updated EBML Head & the following element, usually a Matroska Segment element. This isn't widely supported by programs including MKVToolNix itself, causing them to declare such files as invalid. The programs will now create the EBML Void element inside the EBML Head element, making them a level 1 element instead of a level 0 element. Fixes #3355.
* mkvpropedit, MKVToolNix GUI's chapter & header editors: often the programs have to relocate the Master elements in which the modifications were done. In that case the Seek Head elements must also be updated to reflect to the Master elements' new positions. If a file contained a Seek Head element at the start already and if that Seek Head was too small to contain the updated positions, the programs would end up in an endless loop trying to write data to the end, creating ever-growing files. This is now handled properly by voiding this too-small Seek Head & finding a proper space for a new one instead. Fixes #3338.
* MKVToolNix GUI: header editor: fixed pixelated icons on higher display scaling values. Fixes #3420.

## Build system changes

* bug fix: libFLAC detection is now done via `pkg-config`, and the corresponding compiler flags are honored. Fixes static compilation with newer versions of libFLAC with MXE where a compiler definition is required to signal that it libFLAC wasn't built as a DLL.

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

- Read

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

- Read

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, mkclean, mkvalidator



Download MKVToolNix Portable download from the Download links under Download and Download other versions!



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187 reviews, Showing 1 to 5 reviews


The official release no longer works on Windows 7 - it is now only viable on Win10 and above. There are unofficial versions around that have been modded for Win7. I think this should be noted on this page. I've been using it for years and is really great. Once I get my Win 11 machine up and running I can update from my present early release v64. My ancient Win7 machine just keeps working nicely and reliably but you have to progress.

Review by netmask56 on Oct 17, 2022 Version: 71.1.0 OS: Windows 7 64-bit Ease of use: 8/10 Functionality: 8/10 Value for money: 10/10 Overall: 9/10




Not working!

Review by prim3 on Oct 16, 2022 Version: 71.1.0 OS: Windows 8 64-bit Ease of use: 1/10 Functionality: 1/10 Value for money: 10/10 Overall: 3/10




This software works as expected. Thanks. I donít often post reviews, but I wanted to offset the 1/10 review just posted by someone who didnít even leave a comment.

Review by KTH on Aug 14, 2022 Version: 70.0.0 OS: Windows 10 64-bit Ease of use: 10/10 Functionality: 10/10 Value for money: 10/10 Overall: 10/10




Rating by HemLok on Aug 14, 2022 Version: 70.0.0 OS: Windows 10 64-bit Ease of use: 10/10 Functionality: 10/10 Value for money: 10/10 Overall: 10/10




No comments!

Review by Hitomi on Aug 14, 2022 Version: 70.0.0 OS: Windows 7 64-bit Ease of use: 1/10 Functionality: 1/10 Value for money: 1/10 Overall: 1/10


187 reviews, Showing 1 to 5 reviews

1 tool hits, Showing 1 to 1 tools
   



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