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: Apr 9, 2026
• Download(s):
  mkvtoolnix-32-bit-98.0-setup.exe
  mkvtoolnix-32-bit-98.0.7z
  mkvtoolnix-64-bit-98.0-setup.exe
  mkvtoolnix-64-bit-98.0.7z
  MKVToolNix_GUI-98.0-x86_64.AppImage
• # Version 98.0 "Chonks" 2026-04-05
  
  
  ## New features and enhancements
  
  
  * all: huge update to the Japanese translations which had been not worked on
    for several years. The program translation is now complete again, the man
    page translation has been extended as well. Both were reworked in most
    places. Translations by coolvitto.
  * GUI: chapter editor: added an option in the "additional modifications"
    dialog that toggles applying the selected modifications to all currently
    open chapter editor tabs. Implements #6189.
  * GUI: macOS: added dock icon progress bar for job queue. Patch by Miklos
    Juhasz.
  
  
  ## Bug fixes
  
  
  * GUI: chapter editor: when renumbering chapters limiting the number of
    chapters to renumber did not work. Fixes #6199.
  * GUI: macOS: fixed refreshing widgets after system switches between dark &
    light modes. Patch by Miklos Juhasz.
  
  
  ## Build system changes
  
  
  * The bundled `fmt` library was updated to v12.1.0, fixing a build issue on
    FreeBSD. Fixes #6191.