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

MKVToolNix (64-bit)

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MKVToolNix 33.1.0 (64-bit)

  -  15.85 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 33.1.0 (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 33.1.0 (64-bit)

  • MKVToolNix 33.1.0 (64-bit) Screenshots

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    MKVToolNix 33.1.0 (64-bit) Screenshot 1
  • MKVToolNix 33.1.0 (64-bit) Screenshot 2
  • MKVToolNix 33.1.0 (64-bit) Screenshot 3

What's new in this version:

- MKVToolNix GUI: multiplexer: Windows: using UNC paths (e.g. `\serverVideos`) when the option "automatically set the destination file name" was set in the preferences, the GUI would create a destination file name with forward slashes (e.g. `//server/Videos/outputfile.mkv`), a syntax not supported by `mkvmerge`
- build system: the programs were accidentally built without stack protection (`-fstack-protector-strong`) on recent versions of gcc and clang

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