Create, modify and inspect Matroska (MKV) files for Windows PC

MKVToolNix (64-bit)

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MKVToolNix 84.0.0 (64-bit)

  -  27.54 MB  -  Open Source
Free Download

Security Status

  • Latest Version

    MKVToolNix 88.0.0 (64-bit)

  • Operating System

    Windows 7 64 / Windows 8 64 / Windows 10 64 / Windows 11

  • User Rating

    Click to vote

  • Author / Product

    Moritz Bunkus / External Link

  • Filename

    mkvtoolnix-64-bit-84.0-setup.exe

  • MD5 Checksum

    f54871d113baa0ea72e1ac586d315dd7

Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system.

Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of MKVToolNix 84.0.0 (64-bit).


For those interested in downloading the most recent release of MKVToolNix (64-bit) or reading our review, simply click here.


All old versions distributed on our website are completely virus-free and available for download at no cost.


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If you have any questions or ideas that you want to share with us - head over to our Contact page and let us know. We value your feedback!

Download MKVToolNix 84.0.0 (64-bit)

  • MKVToolNix 84.0.0 (64-bit) Screenshots

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    MKVToolNix 84.0.0 (64-bit) Screenshot 1
  • MKVToolNix 84.0.0 (64-bit) Screenshot 2
  • MKVToolNix 84.0.0 (64-bit) Screenshot 3

What's new in this version:

New features and enhancements:
- mkvmerge: added a new file-specific option `--regenerate-track-uids`. When used for Matroska files, `mkvmerge` will generate new random track UIDs instead of keeping existing track UIDs. This is done automatically when a Matroska file was created by MakeMKV.
- mkvmerge: MP4 reader: added support for FLAC in MP4. Implements #3692.
- MKVToolNix GUI: multiplexer: the "Attachments" tab's title will now include the total number of attachments (both from source files & to newly attach). Implements #3693.
- translations: added a Norwegian Bokmål translation of the programs by Roger Knutsen (see `AUTHORS`).

Fixed:
- configure: when called with `--disable-gui` the build system still ran the check for the GUI libraries & failed if they weren't found. This check is now skipped when the option is given.
- mkvmerge: several color-related track header properties were parsed into & stored as a wrong integer type internally. This could result in wrong values being copied when very large values were present in source files, or in error messages when very large values were used as command-line parameters.
- MKVToolNix GUI: multiplexer: the keyboard shortcuts from the "modify selected tracks" sub-menu didn't work right after opening a file. They only started working after opening the "multiplexer" menu.

Build system changes:
- Release v8.0.0 of the `fmt` library is now required. If not found, the bundled copy will be used.
- A C++20 compatible compiler is now required for several but certainly not all C++20 features. g++ v10 & clang++ v10 should suffice.

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