video/*

video/webm

File extensions: .webm

Open-source video container with VP8/VP9/AV1 codecs.

What is video/webm?

video/webm is the royalty-free video container championed by Google. WebM with VP9 gives smaller files than MP4/H.264 at similar quality and is supported by every modern browser except Safari without extensions.

Typical usage

WebRTC recordings, background videos, animated hero elements.

HTTP header example

Response header

Content-Type: video/webm

Reference

webmproject.org

Related MIME types

video/mp4

MP4

video/ogg

Ogg (Theora)