WEBM

HTML5 Video

File extension: .webm Developed by: Google Type of format: Video file format MIME: video/webm, audio/webm
WebM is a video file format. It is primarily intended to offer a royalty-free alternative to use in the HTML5 video tag. It has a sister project WebP for images. The development of the format is sponsored by Google, and the corresponding software is distributed under a BSD license.