MKVToolNix is a set of tools to create, alter and inspect Matroska files. The Windows download goes to the official server mkvtoolnix.download, and we do not host the file. Version 103.0.0 is 35.2 MB and free.
Four command-line tools behind one GUI
The tags list the core programs: mkvmerge, mkvextract, mkvinfo and mkvpropedit. Together they cover building MKV files, pulling tracks out, reading file details and editing properties. Moritz Bunkus is the developer, and the code is under GPL-2.0.
What a typical session looks like
You add source files to the GUI multiplexer, and it identifies the tracks. You switch tracks on or off and then write the output file. Version 103.0.0 adds context menu actions that enable or disable every item from the same source file.
Compared with OpenShot, Avidemux and Kdenlive
Alternatives include OpenShot Video Editor, Avidemux, Kdenlive and Shotcut. MKVToolNix is a container tool for Matroska, not a timeline editor. Its categories are video editors and video converters.
What's new in 103.0.0
Version 103.0.0 sets stereo mode from the frame packing SEI message for AVC/H.264 and HEVC/H.265 in mkvmerge when nothing else specifies it. It also fixes lost video frames at the end of MP4 files.
MKVToolNix pros and cons
Pros
- Free, with GPL-2.0 licence
- Covers creating, altering and inspecting Matroska files
- Includes mkvmerge, mkvextract, mkvinfo and mkvpropedit
- Fixes lost final video frames in MP4 input
- Hosted on the official server mkvtoolnix.download
Cons
- Screenshots are not available on this page
- Focused on Matroska, not general video editing
- 35.2 MB download
Is MKVToolNix safe?
The download points to the official server mkvtoolnix.download, and we do not host the file. The publisher is Moritz Bunkus and the licence is GPL-2.0. No independent security review is available.
How to install MKVToolNix
- Press the download button to get the official file.
- Run the installer you saved and confirm the Windows security prompt if the publisher matches.
- Follow the setup steps, then start MKVToolNix from the Start menu.
