Since this is an older version, ensure you download from a trusted archive source (e.g., the official MKVToolNix old releases page or reputable mirror). Always scan downloaded files.
For most modern users, we highly recommend visiting the official MKVToolNix website and downloading the latest release. But if you need the classic v5.9.0 experience, use the official mirror links above and enjoy the best MKV muxer ever made.
in later versions. Current versions (v90.0+ as of 2025/2026) provide significant advantages: Arch Linux Forums ChangeLog - MKVToolNix
Before diving into the specifics of version 5.9.0, it is essential to understand what this tool does. Mkvmerge GUI is the graphical user interface component of , a collection of tools created by Moritz Bunkus. While the backend is command-line based, the GUI makes the powerful features accessible to everyday users.
is like a vintage Swiss Army knife: not the newest, but perfectly capable, deeply satisfying to use, and built to last. Whether you’re remuxing your anime collection, fixing a broken MKV, or just learning how containers work, this free tool remains a timeless companion.