MKVToolnix

MKVToolnix is a set of tools to create, alter and inspect Matroska files under Linux, other Unices and Windows. They do for Matroska what the OGMtools do for the OGM format and then some.

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 new multimedia file format aiming to become THE new container format for the future.

• Release Date: Sep 26, 2025
• Download(s):
  mkvtoolnix-32-bit-95.0-setup.exe
  mkvtoolnix-32-bit-95.0.7z
  mkvtoolnix-64-bit-95.0-setup.exe
  mkvtoolnix-64-bit-95.0.7z
  MKVToolNix-95.0.dmg
  MKVToolNix_GUI-95.0-x86_64.AppImage
• # Version 95.0 "Goodbye Stranger" 2025-09-14
  
  
  ## New features and enhancements
  
  
  * mkvmerge, MKVToolNix GUI: new chapter generation feature: a new placeholder
    has been introduced when generating chapters for appended files, \<TITLE\>,
    which will be replaced by the appended file's title metadata. Implements
    #6151. Implementation by Jason Donenfeld.
  * mkvmerge: the display matrix from MP4 files are now translated into
    appropriate roll and yaw values for output MKV files. Implements
    #6150. Implementation by Jason Donenfeld.
  * mkvmerge: add `--date` argument to set the date metadata. Implements
    #6155. Implementation by Jason Donenfeld.
  
  
  ## Bug fixes
  
  
  * build system: fixed building with the upcoming Boost v1.89.0 by only
    requiring the header part of the Boost.System library as it's been
    header-only since v1.69.0. Fixes #6143.
  * mkvmerge: PCM packetizer: mkvmerge will now always write frames with 40ms of
    samples, no matter how long or short the frames in the source files
    were. Part of the fix of #6149.
  * mkvmerge: MP4/QuickTime reader: fix exorbitant memory usage when reading PCM
    audio tracks. Part of the fix of #6149.
  
  
  ## Build system changes
  
  
  * Boost v1.74.0 or newer is now required.