MKVToolnix Going Universal Posted on 2007-01-18 by Administrator MKVToolnix is an Open-source, cross-platform tool box which allows users to create and extract Matroska files. And MKVToolnix has been updated to 2.0.0. This new version works for both Intel and PowerPC-based Macs, according to Bunkus.org. Click on the button to find out more.