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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: 33MB
Portable version
Other versions
Old versions
Version history
Alternative software
OS:
File size: 33MB
Portable version
Other versions
Old versions
Version history
Alternative software
Screenshots
Latest version
Download
Download MKVToolNix 100.0 Windows 64-bit 33MB Win64
Download MKVToolNix 100.0 Windows 33MB Win
Download MKVToolNix 100.0 Mac 64-bit Mac64
Download MKVToolNix 100.0 Linux 64-bit 60MB Linux64
Download Portable and other versions
Portable 
Download MKVToolNix 100.0 Portable Windows 28MB Win
Portable Download MKVToolNix for Windows 7,8 and old Windows 10 versions Win7 Win8 Win10 Portable
Download old versions
Software License
Supported operating systems
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 100.0 "Do Hot Girls Like Chords" 2026-07-05
## New features and enhancements
* all: added new scalable (SVG) application icons for all applications, replacing the existing pixmap (PNG, ICO) icons. Icons from Sarreq Teryx. Implements #6253.
* mkvmerge: MP4 reader: track names are now read from the track's user-data atoms (`trak` `udta` `name`) if present. Implements #6274.
* MKVToolNix GUI: executing actions configuration, type "play audio file": added a slider to make configuration more intuitive. Implemented by #6267.
* MKVToolNix GUI: executing actions: macOS only: the GUI will now use bundled audio files for "play audio file" actions that Qt can play instead of using macOS's system sounds. Implemented by #6268. Fixes #6264.
* MKVToolNix GUI: executing actions: Windows only: added a new type: executing a PowerShell script. Either an existing script file can be selected or custom PowerShell script code entered in a small editor. The executed script has access to all `MTX_…` variables through the environment, e.g. `$env:MTX_DESTINATION_FILE_BASE_NAME`. Workaround for the problems talked about in #6254.
* MKVToolNix GUI: job queue: added a context menu for opening copies of the selected queue jobs in the multiplexer as new settings there without removing the queue jobs. Implements #6255.
* MKVToolNix GUI: job queue: added a search functionality for jobs that searches in job descriptions, outputs, warnings & errors. Implements #6256.
## Bug fixes
* command-line tools: Windows: switched to Boost's UTF-8 code-conversion facet (`boost::locale::utf8_codecvt`) from `std::utf8_codecvt` included in MingW. This seems to fix an issue with converting certain high code point from `wchar_t` to `char` (from UTF-32/16 to UTF-8), preventing interesting exceptions from being thrown. Fixes #6257.
* mkvmerge: AAC: fixed mis-detection of ADTS streams not starting on a frame boundary. Fixes regression starting with v87 when fixing AAC LATM config not being parsed if it wasn't present in the first AAC frame. Patch by Corticalcode. Fixes #6196.
* mkvmerge: MPEG TS reader: under certain rare conditions mkvmerge was skipping a certain amount of content at the start of the main M2TS file when reading MPLS playlists. The amount of content skipped proportional to the probe range percentage. This only happened when the source Blu-ray contains HDMV TextST subtitles. Fixes #6269.
* MKVToolNix GUI: executing actions configuration, type "play audio file": fixed audio volume not working since switching to Qt 6 due to its interface taking a `float` in range `0.0`–`1.0` instead of the old interface taking an `int` in range `0`–`100`. Implemented by #6267. Fixes #6266.
* MKVToolNix GUI: executing actions: fix backslash handling when parsing a Unix-shell escaped string into separate arguments. The user-visible fix is that the command-line in the "executing actions" dialog will not have the quoting changed in wrong ways by the GUI when the GUI adds another variable upon user request, a regression introduced in v99. Fixes #6253.
## Build system changes
* all: when building for Windows the programs ImageMagick (executable `magick`) & Inkscape (executable `inkscape`) are required in order to build ICOs from SVGs.
* macOS: include the app's supported platform(s) in `Info.plist` to correctly resolve the app's Kind as Apple Silicon in System Information. Detected during discussion of #6260.
* macOS: updated Qt to 6.11.1. The patch that made building Qt from source possible on macOS 26.4 (by Touchstone64) has been removed as Qt 6.11.1 includes the fix upstream. See #6276.
## New features and enhancements
* all: added new scalable (SVG) application icons for all applications, replacing the existing pixmap (PNG, ICO) icons. Icons from Sarreq Teryx. Implements #6253.
* mkvmerge: MP4 reader: track names are now read from the track's user-data atoms (`trak` `udta` `name`) if present. Implements #6274.
* MKVToolNix GUI: executing actions configuration, type "play audio file": added a slider to make configuration more intuitive. Implemented by #6267.
* MKVToolNix GUI: executing actions: macOS only: the GUI will now use bundled audio files for "play audio file" actions that Qt can play instead of using macOS's system sounds. Implemented by #6268. Fixes #6264.
* MKVToolNix GUI: executing actions: Windows only: added a new type: executing a PowerShell script. Either an existing script file can be selected or custom PowerShell script code entered in a small editor. The executed script has access to all `MTX_…` variables through the environment, e.g. `$env:MTX_DESTINATION_FILE_BASE_NAME`. Workaround for the problems talked about in #6254.
* MKVToolNix GUI: job queue: added a context menu for opening copies of the selected queue jobs in the multiplexer as new settings there without removing the queue jobs. Implements #6255.
* MKVToolNix GUI: job queue: added a search functionality for jobs that searches in job descriptions, outputs, warnings & errors. Implements #6256.
## Bug fixes
* command-line tools: Windows: switched to Boost's UTF-8 code-conversion facet (`boost::locale::utf8_codecvt`) from `std::utf8_codecvt` included in MingW. This seems to fix an issue with converting certain high code point from `wchar_t` to `char` (from UTF-32/16 to UTF-8), preventing interesting exceptions from being thrown. Fixes #6257.
* mkvmerge: AAC: fixed mis-detection of ADTS streams not starting on a frame boundary. Fixes regression starting with v87 when fixing AAC LATM config not being parsed if it wasn't present in the first AAC frame. Patch by Corticalcode. Fixes #6196.
* mkvmerge: MPEG TS reader: under certain rare conditions mkvmerge was skipping a certain amount of content at the start of the main M2TS file when reading MPLS playlists. The amount of content skipped proportional to the probe range percentage. This only happened when the source Blu-ray contains HDMV TextST subtitles. Fixes #6269.
* MKVToolNix GUI: executing actions configuration, type "play audio file": fixed audio volume not working since switching to Qt 6 due to its interface taking a `float` in range `0.0`–`1.0` instead of the old interface taking an `int` in range `0`–`100`. Implemented by #6267. Fixes #6266.
* MKVToolNix GUI: executing actions: fix backslash handling when parsing a Unix-shell escaped string into separate arguments. The user-visible fix is that the command-line in the "executing actions" dialog will not have the quoting changed in wrong ways by the GUI when the GUI adds another variable upon user request, a regression introduced in v99. Fixes #6253.
## Build system changes
* all: when building for Windows the programs ImageMagick (executable `magick`) & Inkscape (executable `inkscape`) are required in order to build ICOs from SVGs.
* macOS: include the app's supported platform(s) in `Info.plist` to correctly resolve the app's Kind as Apple Silicon in System Information. Detected during discussion of #6260.
* macOS: updated Qt to 6.11.1. The patch that made building Qt from source possible on macOS 26.4 (by Touchstone64) has been removed as Qt 6.11.1 includes the fix upstream. See #6276.
View full changelog
Sections/Browse similar tools
Alternative to MKVToolNix
(Latest version updated)MetaFox (Jul 6, 2026)
MKVcleaver (Nov 21, 2025)
MKVExtractGUI and MKVE Wizard (Nov 17, 2006)
OGMcleaver (Aug 8, 2007)
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
| 200 reviews, Showing 1 to 5 reviews |
Rating by tso on
Apr 20, 2025 Version: 82
OS: Windows 10 64-bit Ease of use: 9/10
Functionality: 9/10
Value for money: 10/10
Overall: 10/10
@ Tagoria: How old are you?
Yoù're provided with this highly functional, top notch software for FREE!
Not that it'd occur to you to leave a "thank you",
you rate it 1/10, even on "value for money".
There's someone working for your benefit, for free,
you might wanna show some gratitude.
And if you got a prob with that app, it works like a charm
for the vast majority of users, so in your case...
.....PEBCAK
Yoù're provided with this highly functional, top notch software for FREE!
Not that it'd occur to you to leave a "thank you",
you rate it 1/10, even on "value for money".
There's someone working for your benefit, for free,
you might wanna show some gratitude.
And if you got a prob with that app, it works like a charm
for the vast majority of users, so in your case...
.....PEBCAK
Review by tuco76 on
Jan 10, 2025 Version: MKVToolNix 89.0
OS: Windows 10 64-bit Ease of use: 10/10
Functionality: 10/10
Value for money: 10/10
Overall: 10/10
When are you people going to learn to check against VirusTotal when you get a positive virus report from any antivirus?
https://www.virustotal.com/gui/file/959a56dea9135933113483b1a269841cc7958cff2de25fd97d08f15a36a80cb8
Sixty-six other A/V say there is nothing wrong with MKVToolNix 82.
https://www.virustotal.com/gui/file/959a56dea9135933113483b1a269841cc7958cff2de25fd97d08f15a36a80cb8
Sixty-six other A/V say there is nothing wrong with MKVToolNix 82.
Review by Gripweed on
Jan 3, 2024 Version: 82.0
OS: Windows 10 64-bit Ease of use: 10/10
Functionality: 10/10
Value for money: 10/10
Overall: 10/10
Bummer! Avast! A/V identified it as containing "FileRepMalware".
Review by mail2tom on
Jan 3, 2024 Version: 82.0 X64
OS: Windows 10 64-bit Ease of use: 8/10
Functionality: 10/10
Value for money: 10/10
Overall: 9/10
Rating by Phryxus on
Sep 3, 2023 Version: 77
OS: Windows 10 64-bit Ease of use: 9/10
Functionality: 10/10
Value for money: 10/10
Overall: 10/10
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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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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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