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MKVToolNix
by MKVToolNix
What MKVToolNix is
MKVToolNix is a free set of utilities for creating, changing, and inspecting Matroska files. The mkvmerge tool joins selected or all streams from multiple media files into a Matroska file, while mkvinfo displays file elements. mkvextract saves tracks into other files, and mkvpropedit changes properties without a complete remux. MKVToolNix GUI provides interfaces for mkvmerge plus chapter and header editors. Supported formats include Matroska, WebM, AAC, AC-3, CAF, DTS, FLAC, MP2, MP3, Ogg Opus, WAV, MPEG, H.264, H.265, AVI, and others. Audio extraction is supported, but batch conversion is not. The software runs on Linux, macOS, Windows, and self-hosted setups. Windows releases support Windows 10 and Windows Server 2016 or newer, with installer and portable archives. A Linux AppImage requires glibc 2.28 or later. Package sources include Chocolatey, Flatpak, Homebrew, and MacPorts.
Who it suits
It suits users who create, inspect, or modify Matroska files on Linux, macOS, Windows, or self-hosted systems. Command-line and GUI options support different workflows.
What it does well
- Free tools for Matroska creation and inspection
- Includes merging, extraction, and property editing
- GUI includes chapter and header editors
- Runs on Linux, macOS, Windows, and self-hosted systems
- Supports audio extraction
What to know first
- Batch conversion is not supported
- Microsoft Store edition runs only the GUI
- Windows requires version 10 or Server 2016+
- Linux AppImage requires glibc 2.28+
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| MKVToolNix | Microsoft Store edition has a fee; command-line tools cannot be run directly from the Store edition | Free |
As mkvtoolnix.download lists them, read 11 Oct 2026. The maker's own page has the final word.
Verdict
MKVToolNix offers focused utilities for assembling, examining, and editing Matroska media, with both command-line and GUI interfaces. Its broad platform support is balanced by the absence of batch conversion and restrictions on the Microsoft Store edition.
Facts from MKVToolNix's own pages
- Audio extraction
- Yes · mkvtoolnix.download, 22 Sept 2026
- Batch conversion
- No · mkvtoolnix.download, 22 Sept 2026
- Container option
- A community-maintained Docker image for the GUI can run on systems such as Synology and Unraid NAS, and the maker says it does not provide support for that image. · mkvtoolnix.download, 11 Oct 2026
- Download authenticity
- The maker signs source archives and package repositories with GPG keys and signs Windows binaries with a code-signing certificate; the site also provides checksums for Windows downloads. · mkvtoolnix.download, 11 Oct 2026
- Edit properties
- mkvpropedit modifies properties of existing Matroska files without a complete remux. · mkvtoolnix.download, 11 Oct 2026
- Extract
- mkvextract extracts tracks from Matroska files into other files. · mkvtoolnix.download, 11 Oct 2026
- Founded
- 2003 · mkvtoolnix.download, 28 Sept 2026
- Free plan
- Yes · mkvtoolnix.download, 22 Sept 2026
- GUI
- MKVToolNix GUI provides an interface for mkvmerge and includes a chapter editor and a header editor. · mkvtoolnix.download, 11 Oct 2026
- Inspect
- mkvinfo prints information about elements in Matroska files. · mkvtoolnix.download, 11 Oct 2026
- Integrations
- MKVToolNix can be installed through package sources including Chocolatey, Flatpak, Homebrew and MacPorts. · mkvtoolnix.download, 11 Oct 2026
- Intended users
- The maker describes the tools as intended for creating, altering and inspecting Matroska files under Linux, other Unix systems and Windows. · mkvtoolnix.download, 11 Oct 2026
- Linux AppImage
- The distribution-agnostic Linux AppImage should run on distributions with glibc 2.28 or later. · mkvtoolnix.download, 11 Oct 2026
- Merge
- mkvmerge joins selected or all streams from several media files into a Matroska file. · mkvtoolnix.download, 11 Oct 2026
- Notable limitation
- The Microsoft Store edition allows users to run only the GUI, while its functionality is otherwise identical to non-Store editions. · mkvtoolnix.download, 11 Oct 2026
- Output formats
- Matroska (MKV),WebM,AAC,AC-3,CAF,DTS,FLAC,MP2,MP3,Ogg Opus,WAV,RealMedia,TrueHD/MLP,TTA,Ogg Vorbis,WV,MPEG,H.264,H.265,AVI,Ogg and IVF · mkvtoolnix.download, 22 Sept 2026
- Platforms
- The maker provides downloads for Windows, Linux distributions and macOS; the current macOS downloads are DMGs for macOS 13 Ventura and newer. · mkvtoolnix.download, 11 Oct 2026
- Purpose
- MKVToolNix is a set of tools to create, alter and inspect Matroska files. · mkvtoolnix.download, 11 Oct 2026
- Support
- The maker asks users to report errors through bug reports and lists a forum and issue tracker as support channels for macOS builds. · mkvtoolnix.download, 11 Oct 2026
- Supported platforms
- cross-platform · mkvtoolnix.download, 22 Sept 2026
- Windows requirements
- The current Windows releases support Windows 10 and Windows Server 2016 or newer and are offered as installers and portable 7zip archives. · mkvtoolnix.download, 11 Oct 2026
Where MKVToolNix stands on Freedom251
- Video Converter Software#25 of 75