: Let’s you change properties of a file—like titles or default language tags—without remuxing the whole file.

: Provides a deep dive into the file's technical metadata and structure. Is 32-Bit Support Still Available?

Follow these steps to ensure you get the safe, official version: MKVToolNix - Powerful MKV Editing & Merging Tool

: The heart of the suite, used to merge multiple video, audio, and subtitle tracks into one MKV file.

MKVToolNix is a free, open-source suite of tools designed to create, alter, and inspect MKV files. Unlike video converters that re-encode files (often losing quality), MKVToolNix "remuxes" them—meaning it simply rearranges the data streams into a new container without touching the original video or audio quality. Core Tools Included:

Yes. Despite the shift toward 64-bit systems, the developer (Moritz Bunkus) continues to provide for the latest releases, including current versions like v98.0.