WebM

File Format
Name	WebM
Ontology	Electronic File Formats Video WebM
Extension(s)	.webm
MIME Type(s)	video/webm, audio/webm

WebM is a video and audio container format released by Google, used with content encoded under the VP8 or VP9 codecs for video, and Vorbis and Opus for audio.

Sample files

• Test video

Links

• Wikipedia article
• The WebM Project
• Container Guidelines