MKVToolnix software (version 8.8.0) is a powerful and -friendly tool for creating, editing, and inspecting Matroska (MKV) files. Its most important features include the ability to merge multiple video, audio, and subtitle tracks into a single MKV file, extract specific tracks from an existing MKV file, and add or remove chapters and tags. Additionally, it allows s to view detailed information about the contents of MKV files, including video and audio codecs, frame rates, and bitrates.