How do WebM and WMVcompare? Here's everything you need to know to choose the right format — and how to convert between them.
Web Media
WebM is Google's open-source video format designed specifically for the web. It offers excellent compression and quality, especially with the VP9 and AV1 codecs, and is royalty-free.
Windows Media Video
WMV is Microsoft's proprietary video format. It was popular on Windows platforms in the 2000s but has largely been replaced by MP4. WMV files are still encountered in corporate and legacy environments.
| Specification | WebM | WMV |
|---|---|---|
| Full name | Web Media | Windows Media Video |
| Extension | .webm | .wmv |
| MIME type | video/webm | video/x-ms-wmv |
| Category | Video | Video |
| Developer | Microsoft | |
| Year introduced | 2010 | 1999 |
WebM and WMV target different use cases. WebM is ideal for html5 web video, while WMV works best for legacy windows video libraries.
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