What happens when you convert WMV to WebM
| Inside a typical WMV | WMV 8 or WMV 9 video with WMA audio |
|---|---|
| Copy without re-encoding | Rarely: the codecs are not compatible, so the video is re-encoded |
| When re-encoded | VP8 video with Vorbis audio |
| Opens in | all current browsers and VLC; iPhone apps, PowerPoint and many editors do not |
Sizes are typical values; your files will vary with content and settings.
WMV Windows Media Video
WMV is Microsoft's Windows Media video format, common in older Windows recordings and presentations.
WMV converterWebM WebM Video
WebM is an open, royalty-free container built for the web, usually holding VP8 or VP9 video with Opus or Vorbis audio. Browser screen recorders and many web apps save WebM by default.
WebM converterHow to use the WMV to WebM Converter
- 1
Choose a WMV file or drop it onto the page.
- 2
Review the video options. The defaults suit most files.
- 3
Click Convert and download your WebM when processing finishes.
Why convert WMV to WebM?
WMV files come from Windows Movie Maker, older Windows cameras and corporate video archives. Macs, phones and browsers rarely play WMV. Choose WebM to embed video on a website using open, royalty-free codecs.
Frequently asked questions
Will the WebM lose quality?
Both formats are lossy, so converting re-encodes the data once more. Using a high quality setting keeps the generational loss very small. Avoid converting the same file back and forth repeatedly.
Does converting WMV to WebM re-encode the video?
Rarely: the codecs are not compatible, so the video is re-encoded. A typical WMV contains WMV 8 or WMV 9 video with WMA audio. Otherwise the result is VP8 with Vorbis audio.
Questions about privacy, file-size limits or conversion speed are answered in the general FAQ.