MKVToolnix is a freeware utility that allows you to create, alter, inspect, etc., video files with the MKV format.You can use MKVToolNix to create, split, edit, mux, demux, merge, extract, or inspect Matroska files.
MKVToolnix program will also work with other video formats including AVI, MPEG, MP4, MPEG, MPEG1/2, h264, and more, as well as some video codecs such as VP9, audio including AAC, FLAC, MP2, MP3, AC3, DTS/DTS-HD, Vorbis and most subtitle formats including SRT, PGS/SUP, VobSub, ASS, and SSA.
