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MKVToolNix is a collection of the best tools for modifying MKV files. The bundle includes mkvmerge, mkvinfo, mkvextract, mkvpropedit, and mmg, making it a powerful and versatile solution for all your MKV editing needs.
With these tools, you can view detailed information about Matroska files using MKVInfo. You can also extract tracks and data from Matroska files using mkvextract and create new Matroska files from other media files with mkvmerge. Matroska is an innovative multimedia file format that aims to become the primary container format of the future. For more information about Matroska and its underlying technology, the Extensible Binary Meta Language (EBML), visit matroska.org.
Get complete control over your MKV files with an intuitive graphical interface. The GUI enables you to create, split, and edit MKV files. Whether you need to merge different tracks, extract specific elements, or inspect the file’s contents, the tools provide everything you need to modify your media.
In addition to MKV, the software supports various other video formats, including AVI, MP4, MPEG, Ogg/OGM, RealVideo, MPEG-1/2, H.264/AVC, Dirac, and VC-1. This broad compatibility makes it a versatile tool for handling all your video editing needs.
The software supports multiple video codecs, including VP9, for greater compatibility. The program can read VP9 from IVF, Matroska, and WebM files and extract it to IVF format, making it a versatile tool for handling all your video editing needs.
Get a powerful video tool that can handle any audio or subtitle format. The software supports a wide range of audio files, including AAC, FLAC, MP2, MP3, and DTS, as well as most subtitle formats, such as SRT, VobSub, and ASS. With support for multiple formats and codecs, you can work with a broad selection of video files.
Take the tool with you wherever you go. The portable version requires no installation; run the executable file from a USB drive or other external device. You can then use the program on any computer, giving you the freedom to edit MKV files on the fly.
MKVToolnix – Pros & Cons
| Pros | Cons |
|---|---|
| ✓ Creates, edits, and remuxes Matroska (MKV) files without re-encoding, preserving the original video and audio quality. | ✗ Primarily designed for the MKV format, with limited support for editing or creating other video container formats. |
| ✓ Supports multiple video, audio, subtitle, chapter, and metadata tracks, making it ideal for organizing complex media files. | ✗ The extensive feature set and technical terminology may be challenging for beginners. |
| ✓ Offers precise control over track order, language tags, default tracks, and file splitting and merging options. | ✗ Does not include video or audio editing tools such as trimming, filtering, or visual effects. |
| ✓ Includes a graphical interface for everyday users and command-line tools for advanced automation and batch processing. | ✗ Batch processing multiple files through the graphical interface can be less convenient than dedicated media conversion software. |
| ✓ Provides a portable version that runs without installation, making it convenient for troubleshooting and use on multiple Windows PCs. | ✗ Some advanced tasks require understanding container structures, tracks, and codec compatibility. |
Frequently Asked Questions
Is MKVToolNix free to use?
Yes. MKVToolNix is free and open-source software for creating and modifying Matroska files. The project is distributed under the GNU General Public License, so no paid license is required for its core functionality.
What is the difference between MKVToolNix and HandBrake?
MKVToolNix is primarily a container tool that reorganizes existing video, audio, and subtitle streams without re-encoding them. HandBrake is a video transcoder designed to convert and compress media, so it is better suited for changing codecs or reducing file size.
Can MKVToolNix convert MKV to MP4?
No. MKVToolNix is designed to create Matroska files and does not produce MP4 output. If you need an MP4 file, you need a different tool that supports MP4 container creation.
Does MKVToolNix reduce video quality?
No. Its normal remuxing operations do not re-encode the video or audio streams, so the original media quality is preserved. This makes it suitable for changing the container or reorganizing tracks without the quality loss associated with transcoding.
What’s New in MKVToolnix 101.0 “Time To Turn”
Release Date 2026-08-24
Official Homepage – https://mkvtoolnix.download
It works on Microsoft Windows (32-bit and 64-bit versions), macOS, and Linux.
