What is WEBM?
| Full name | Web Media File |
| Format type | Video |
| Developed by | On2, Xiph, and Matroska; now supported by Google |
| Description | WebM stands for Web Media File. It is an open, royalty-free, audiovisual file format created in 2010 specifically for the web. If you are not sure how to play a WebM file, you’ll find information about the WebM format specification and a list of programs that support playback of these files below. |
| File extension | .webm |
| Technical details | The WebM file type is used in HTML5 video and audio elements. It supports variable video frame rates and audio bitrates. In a WebM file, the video stream is compressed with VP8 or VP9 video codecs, and the audio stream with Vorbis or Opus audio codecs. |
| Associated programs | QuickTime Player, Google Chrome, Opera, Mozilla Firefox, YouTube, and Adobe Flash Player |