WEBM File Documentation

Overview

Feature Value
Format Name WebM Video File
File Extension .webm
MIME Type video/webm
Video Codec VP8, VP9
Audio Codec Vorbis, Opus
Container Format Matroska
Resolution Any, up to 4K and beyond
Video Quality High quality at smaller file sizes
Audio Quality High-quality audio
Streaming Compatible Yes
Supports 360 Video Yes
Open Standard Yes
Licensing Royalty-free
Metadata Support Limited
Chapter Support Yes
Subtitle Support Yes
Developed By WebM Project (initially by Google)
Initial Release 2010
Usability Easy to use for web playback and streaming
Compatibility Supported by major browsers and media players