WMV files won’t open on Mac, iPhone or the web without extra software. Convert them to universal MP4 right in your browser — fast, private and free.
Drop your WMV video here or click to browse
Select a WMV video file
WMV (Windows Media Video) is Microsoft’s proprietary format built around the WMV/VC-1 codec. It was the default output of Windows Movie Maker and many screen recorders of that era, but it has poor support outside Windows: macOS, iPhones, Android devices and web browsers can’t play it natively. Because the VC-1 codec cannot legally or technically be placed inside an MP4 container, converting WMV requires re-encoding to H.264 video and AAC audio — which this tool does entirely on your device, producing an MP4 that plays absolutely everywhere.
Drop your WMV file — Windows Movie Maker exports and old screen recordings welcome.
Pick the conversion options that fit — sensible defaults work for most files.
Get your converted file instantly — it plays on every device and platform.
The WMV/VC-1 codec is not compatible with the MP4 container, so the video must be re-encoded to H.264. That’s why this converter always re-encodes — it is the only way to produce a standards-compliant MP4 from a WMV file.
The High quality preset produces an MP4 that is visually indistinguishable from the source for typical WMV content. WMV files are usually older, lower-resolution videos, so the modern H.264 encoder preserves them very efficiently.
Yes — that is the main reason to convert. The output MP4 (H.264 + AAC) plays natively in Safari, QuickTime, iPhone, iPad, Android, smart TVs and every modern browser.
No. Conversion happens locally in your browser via FFmpeg WebAssembly. The file never leaves your computer — nothing is stored on our servers.
WMV7, WMV8, WMV9 and VC-1 video with WMA audio all convert correctly. If a file fails, it may be DRM-protected — protected WMV files from old music/movie stores cannot be converted by any tool.
Completely free with no watermark and no sign-up. Your own device does the work, so there are no server costs to pass on.
Drop a WMV and get a universal MP4 in seconds — right in your browser, no sign-up required.