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Tool
Description
Type
Rating
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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.
Latest version
Download
Download MKVToolNix 31.0.0 Windows 15.8MB Win
Download MKVToolNix 31.0.0 Windows 64-bit 15.9MB Win64
Download MKVToolNix 31.0.0 Mac 28.6MB Mac
Download MKVToolNix 31.0.0 Linux 64-bit 39.9MB Linux64
Download Portable and other versions
Download MKVToolNix 31.0.0 Portable Windows 64-bit 14.1MB Win64 Portable
Download old versions
Software License
Supported operating systems
Windows 
Mac OS 
Linux 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.
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 31.0.0 "Dolores In A Shoestand" 2019-02-09
## New features and enhancements
* all programs: added a new option `--abort-on-warnings` that will cause the program to abort after it has emitted the first warning, similar to how it aborts after the first error. Implements #2493.
* mkvmerge, mkvextract: when closing files that were opened for writing, cached data will not be flushed to storage automatically anymore. This reverts the workaround implemented for #2469. A new option was added to both programs (`--flush-on-close`) that re-enables flushing for people who are affected by data loss such as described in #2469.
The reason is that automatic flushing causes long delays in processing queues when the output by mkvmerge/mkvextract isn't the final product but just an intermediate result to be processed further.
Implements #2480.
* MKVToolNix GUI: multiplexer: the dialog previewing different character sets for text subtitles will now keep the position of the displayed text when switching between character sets. Implements #2489.
## Bug fixes
* mkvmerge: AVI reader: using DV type 1 AVIs will now result in an unsupported file type being reported (as the underlying AVI library doesn't support them) instead of crashing mkvmerge. Fixes #2491.
* mkvmerge: HEVC: the height of interlaced streams will now be set correctly to the height of the full frame instead of the height of a single interlaced field. Fixes #2446.
* mkvmerge: MP4 reader: edit lists consisting solely of elements that mkvmerge doesn't support (such as dwells) are simply ignored. Before no data was read for such tracks at all. Fixes #2487.
* mkvmerge: text subtitles: entries with an explicit duration of 0ms will now be handled correctly: the 0ms duration will be stored in Matroska instead of the difference between the current and the following entry. Fixes #2490.
* MKVToolNix GUI: multiplexer, chapter editor: fixed drag & drop handling with Qt 5.12.0 and newer. Fixes #2472.
* MKVToolNix GUI: multiplexer: the GUI did not clean up temporary files created when running `mkvmerge`. Fixes #2499.
## Build system changes
* Qt 5.4.0 or newer has required (up from 5.3.0) since version 30.0.0; I just forgot to include this entry.
## New features and enhancements
* all programs: added a new option `--abort-on-warnings` that will cause the program to abort after it has emitted the first warning, similar to how it aborts after the first error. Implements #2493.
* mkvmerge, mkvextract: when closing files that were opened for writing, cached data will not be flushed to storage automatically anymore. This reverts the workaround implemented for #2469. A new option was added to both programs (`--flush-on-close`) that re-enables flushing for people who are affected by data loss such as described in #2469.
The reason is that automatic flushing causes long delays in processing queues when the output by mkvmerge/mkvextract isn't the final product but just an intermediate result to be processed further.
Implements #2480.
* MKVToolNix GUI: multiplexer: the dialog previewing different character sets for text subtitles will now keep the position of the displayed text when switching between character sets. Implements #2489.
## Bug fixes
* mkvmerge: AVI reader: using DV type 1 AVIs will now result in an unsupported file type being reported (as the underlying AVI library doesn't support them) instead of crashing mkvmerge. Fixes #2491.
* mkvmerge: HEVC: the height of interlaced streams will now be set correctly to the height of the full frame instead of the height of a single interlaced field. Fixes #2446.
* mkvmerge: MP4 reader: edit lists consisting solely of elements that mkvmerge doesn't support (such as dwells) are simply ignored. Before no data was read for such tracks at all. Fixes #2487.
* mkvmerge: text subtitles: entries with an explicit duration of 0ms will now be handled correctly: the 0ms duration will be stored in Matroska instead of the difference between the current and the following entry. Fixes #2490.
* MKVToolNix GUI: multiplexer, chapter editor: fixed drag & drop handling with Qt 5.12.0 and newer. Fixes #2472.
* MKVToolNix GUI: multiplexer: the GUI did not clean up temporary files created when running `mkvmerge`. Fixes #2499.
## Build system changes
* Qt 5.4.0 or newer has required (up from 5.3.0) since version 30.0.0; I just forgot to include this entry.
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
- ReadHow to convert MKV to DivX / Demultiplex MKV to video and audio files
- ReadHow to convert MKV to MPG (VCD,SVCD or DVD)
- ReadHow to convert MKV video files to AVI
- ReadHow 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
- ReadUsing Handbrake to Burn in Subtitles from MKV to MP4
- 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!
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| 146 reviews, Showing 1 to 5 reviews |
No comments. Rating it only.
Review by angang on
Jan 10, 2019 Version: 30.1.0
OS: Windows 10 64-bit Ease of use: 10/10
Functionality: 9/10
Value for money: 10/10
Overall: 10/10
If you have (serious) bugs to report please report them to the author (and don't forget to include sample files and proper bug descriptions). The author does not read videohelp and your descriptions are too short to reproduce problems in the first place.
See:
https://mkvtoolnix.download/bugreports.html
See:
https://mkvtoolnix.download/bugreports.html
Review by sneaker on
Jan 10, 2019 Version: 30.1.0
OS: Windows 7 64-bit Ease of use: 8/10
Functionality: 8/10
Value for money: 10/10
Overall: 9/10
MKVToolNix 30.1.0 is still truncating some of the files i try to remux.
A 88 MB file became a 6MB file, after remuxing.
Use version 30.1.0 with caution!
A 88 MB file became a 6MB file, after remuxing.
Use version 30.1.0 with caution!
Review by TuNk on
Jan 9, 2019 Version: 30.1.0
OS: Windows 7 64-bit Ease of use: 7/10
Functionality: 7/10
Value for money: 10/10
Overall: 9/10
Has been superb up until now, but 30.1.0 no longer works on OS X 10.11. Compilation issue?
Review by jabb on
Jan 7, 2019 Version: 30.1.0
OS: MacOSX Ease of use: 10/10
Functionality: 10/10
Value for money: 10/10
Overall: 10/10
ALERT!!
ZERO QUALITY CONTROL BEFORE THE RELEASE OF VERSION 30!! IT WILL SHRINK THE FILE TO A FEW KB, EFFECTIVELY DELETING IT, IF YOU SAVE NEW CHAPTERS.
ZERO QUALITY CONTROL BEFORE THE RELEASE OF VERSION 30!! IT WILL SHRINK THE FILE TO A FEW KB, EFFECTIVELY DELETING IT, IF YOU SAVE NEW CHAPTERS.
Review by TheGhost on
Jan 4, 2019 Version: 30
OS: Windows 10 64-bit Ease of use: 10/10
Functionality: 10/10
Value for money: 10/10
Overall: 10/10
| 146 reviews, Showing 1 to 5 reviews |
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