File Size: 31.8 MB

MKVToolnix is an advanced application that enables you to open, examine, edit and mux Matroska files (.mkv). It offers support for other popular video file types too, along with audio tracks and subtitles. The full package includes separate command-line utilities for merging and extracting streams, viewing information, as well as for editing headers and chapters They are all wrapped up in a graphical interface in the Windows edition.

The tool enables you to view, append and take apart tracks, chapters and tags, as well as to edit a wide range of data. For example, when it comes to general track options, you can set the track name, language, default and forced track flags, tags, and timecodes.
What's more, you can set the aspect ratio, FPS, delay, stereoscopy mode, cropping, cues, compression mode, and custom command-line parameters for enhanced functionality. External files can be embedded in the movie as attachments.

Create and edit movie chapters
It's also possible to create chapters and define properties, such as start and end time, flags, segment and segment edition UID, together with chapter name, language and country. Configurable global settings focus on the tag file, whether to create a WebM compliant file or not, split mode, file linking, and so on.
An important aspect worth taking into account is that MKVToolnix offers support for batch jobs, which means that you can leave the workstation unattended while the tool executes time-consuming tasks.
You can examine the current command line and copy it to the Clipboard or save it to file to use in future projects, manage the queue jobs, add command-line options, load chapters from external files, edit the header, as well as save the project as an .mka, .mkv or .mk3d-formatted file.

Evaluation and conclusion
The tool didn't put a strain on computer performance in our tests, using low CPU and RAM. It carried out tasks in a decent amount of time and didn't trigger the operating system to hang, crash or prompt error messages.
Taking into account its wide range of configuration parameters, MKVToolnix should meet the requirements of most expert users looking to study, create, edit and generate MKV files.