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

MKVToolNix (64-bit)

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MKVToolNix 38.0.0 (64-bit)

  -  17.15 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 38.0.0 (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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Download MKVToolNix 38.0.0 (64-bit)

  • MKVToolNix 38.0.0 (64-bit) Screenshots

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    MKVToolNix 38.0.0 (64-bit) Screenshot 1
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What's new in this version:

New features and enhancements:
- mkvextract: chapters, tags & cue sheets will now be written to standard output if no file name is given, same as if `-` is given as the file name.
- MKVToolNix GUI: job queue: added a new setting in the preferences' "job queue & job status" section that, when enabled, will cause the GUI to remove all output files created by jobs that are either aborted by the user or that end in an error.

Bug fixes:
- all programs: macOS: fixed file access if the file name (including all path components) contains any Unicode character where NFC (Normalization Form Canonical Composed) and NFD (Normalization Form Canonical Decomposed) differ, e.g. German Umlauts.
- mkvmerge: when splitting by chapters the user can now split by chapters coming from one of the appended files, too.
- mkvmerge: AAC reader: fixed reading codec parameters (channels, sample rate) if a file starts with garbage that includes valid-but-bogus AAC headers.
- MKVToolNix GUI: Hebrew was added to the list of often-used languages so that it can be selected by default again.
- MKVToolNix GUI: when updating the GUI's settings from v37.0.0 or older, the GUI checks if the list of often-used languages equals the built-in list from v36.0.0. If it does, it will be updated to the built-in list changed in v37.0.0.

Build system changes:
- Boost's Operators header library is now required.

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