MKVToolnix 79.0.0 is a software to create, edit, and check Matroska files in Windows, Linux and Unices. MKVToolnix has the ability to edit, add, and merge audio into MKV videos.
The app can also be used as a tool to convert MP4, AVI, MP3 files and add subtitles to MKV format.
The ability of MKVToolnix is that it can reduce the file size of the video and delete some shares from the video. The latest features of MKVToolnix are adding language support, can enable language tags, on share widgets can display language text and there is an edit theme button.