What is WebM
WebM is an open, royalty-free media file format designed specifically for the web, initially sponsored by Google to provide a highly efficient standard for HTML5 video streaming. Acting as a container, a WebM file typically holds video streams compressed with VP8, VP9, or AV1 video codecs, paired with audio streams compressed using Vorbis or Opus audio codecs. Because it is optimized for high-quality video delivery over varying internet connections with relatively small file sizes, it has become a popular choice for web developers and video-sharing platforms. Consequently, it enjoys native, plugin-free playback support across most major modern web browsers, including Google Chrome, Mozilla Firefox, and Microsoft Edge.