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

MKVToolNix (64-bit)
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MKVToolNix 37.0.0 (64-bit)

  -  17.16 MB  -  Open Source
Free Download

Security Status

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 37.0.0 (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 37.0.0 (64-bit)
Why is this app published on FileHorse? (More info)

  • MKVToolNix 37.0.0 (64-bit) Screenshots

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    MKVToolNix 37.0.0 (64-bit) Screenshot 1
  • MKVToolNix 37.0.0 (64-bit) Screenshot 2
  • MKVToolNix 37.0.0 (64-bit) Screenshot 3

What's new in this version:

New features and enhancements:
- the list of often used languages now contains those from Wikipedia's "List of languages by native speakers" by default. Also by default only those languages will be shown in the language drop-down boxes.

Bug fixes:
- multiplexer: fixed a bug in the "make destination file names unique" logic that caused an existing number-in-parenthesis at the end of the file base name to be removed in certain situations (e.g. when the first added file was named `m (3).mkv` and both `m (3) (1).mkv` and `m (3) (2).mkv` existed already, the GUI was suddenly use `m.mkv` instead of `m (3) (3).mkv`)
- on Windows the GUI is built with a slightly older version of the Qt library again (5.12.4). The Qt version used in release v36.0.0, v5.13.0, lead to crashes when doing certain things such as selecting multiple tracks in the multiplexer

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