WebM is a royalty-free audiovisual format for HTML5 video and audio elements. It uses VP8 or VP9 video compression and Vorbis or Opus audio compression. WebM was developed by Google and released in 2010 under an open-source BSD license. It has a sister project WebP for images.
A WEBM file stores compressed video and audio data. It uses the Matroska container format similar to MKV files. WEBM is an alternative to proprietary formats like AVI and MOV. Not all video players support the WEBM format yet.
WebM is gaining use as an open, high-quality online video standard. Key web technologies like HTML and HTTP being open helps the web’s success. Anyone can implement and improve open core technologies.
Files with the .WEBM extension store high quality, compressed video and audio data. The compression uses the VP8 codec for video and the Vorbis codec for audio. WEBM files are commonly used for online videos using the HTML5 video tag.
WebM is a video and audio container format for open, royalty-free multimedia content. It uses VP9 or VP8 for video compression and Vorbis or Opus for audio compression. WebM is an alternative to the trademarked H.264 and H.265 standards often used online.