Their testing found that ffvp8 was faster than Google's own libvpx decoder. MKVToolNix, the popular Matroska creation tools, implemented support for multiplexing/demultiplexing WebM-compliant files out of the box. Haali Media Splitter also announced support for muxing/demuxing of WebM. Since version 1.4.9, the LiVES video editor has support for realtime decoding and for encoding to WebM format using ffmpeg libraries.