Convert WMV to WebM — Free Online Converter
Convert Windows Media Video (.wmv) to WebM Video (.webm) online for free. Fast, secure video conversion with no watermarks or registration.
Conversion settings — add a file to adjust
About WMV to WebM Conversion
WMV was Microsoft's answer to web video streaming, while WebM is Google's open-source response. WebM uses VP8 or VP9 video codecs (royalty-free) with Vorbis or Opus audio in a Matroska-derived container. WebM is natively supported in Chrome, Firefox, Edge, Opera, and Safari (since Big Sur), making it the standard for patent-free HTML5 video. VP9 achieves compression on par with H.265 — roughly 30–50% more efficient than H.264. Converting WMV to WebM modernizes Microsoft's legacy format for today's web.
Why Convert WMV to WebM?
WMV cannot play in any web browser natively — Flash and Silverlight, which once provided WMV web playback, are both discontinued. WebM provides native <video> element support in all modern browsers without plugins. If you are publishing video on the web, WebM with VP9 and Opus delivers the best compression available in a royalty-free format, reducing bandwidth costs and improving load times.
Common Use Cases
- Publishing WMV corporate videos on the company website using HTML5 <video> tags