libvpx is the VP8/VP9/VP10 video codec library originally developed by On2 Technologies and acquired by Google in 2010. It serves as the reference implementation for the WebM and WebP formats. In the "weapons" context, libvpx was the primary artillery Google used to break the monopoly of the H.264 standard and the associated licensing fees managed by MPEG LA. While it has largely succeeded in making royalty-free video a reality on the web, it faces stiff competition from the newer AV1 codec (AOMedia Video 1).
At its heart, is a free software video codec library published by Google and the Alliance for Open Media (AOMedia). It serves as the primary engine for: weapons libvpx
As of early 2026, libvpx continues to be a focal point for zero-day research and critical patching: libvpx is the VP8/VP9/VP10 video codec library originally