.webmvideo

WebM

WebM Video

MIME type: video/webm

WebM is an open, royalty-free video format developed by Google for the web. It uses VP8/VP9 (or AV1) video codecs and Vorbis/Opus audio codecs, providing efficient compression for web streaming.

Advantages

+Royalty-free and open source
+Excellent compression for web
+Native browser support (Chrome, Firefox, Edge)
+AV1 codec option for best compression

Limitations

-No Safari support (use MP4 fallback)
-Limited editing software support
-Less universal than MP4
-Hardware decoding varies

Common Use Cases

Web video streamingHTML5 video elementsYouTube (internal format)WebRTC video calls

Technical Details

WebM uses the Matroska (MKV) container format with VP8, VP9, or AV1 video codecs and Vorbis or Opus audio. VP9 is roughly 30-50% more efficient than H.264, and AV1 improves on VP9 by another 30%.

Frequently Asked Questions

What is a WebM file?

WebM is a free, open-source video format made by Google for web streaming. It's used internally by YouTube and supported by Chrome, Firefox, and Edge browsers.

Related Tools

Video Compressor

Related Formats

MP4 MOV AVI OGV

Compare WebM with...

WebM vs MP4 WebM vs MOV WebM vs AVI WebM vs OGV