WMV to MP4 Converter
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Free WMV to MP4 Converter

Convert WMV (Windows Media Video) files to MP4 right in your browser. The video is converted to H.264 with AAC audio, so it plays on a Mac, an iPhone, a TV or in an editor. No sign-up, no watermark, and your video never leaves your device.

No file handy?

Drop your WMV video here

or click to browse — Windows Media Video and ASF files

Your video never leaves your device. The conversion runs entirely in your browser. Privacy policy.

Large videos take a few minutes to convert. Keep this tab open until it finishes.

Need a different format? Use the all-in-one converter — video, audio and image formats in one tool.

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About WMV to MP4 conversion

WMV is Microsoft's Windows Media Video format. Windows Movie Maker, older PowerPoint exports and many older Windows programs saved it. Macs, iPhones and most modern apps do not play WMV. Converting WMV to MP4 here re-encodes the video to H.264 with AAC audio, which plays almost everywhere.

How to convert WMV to MP4

What people use it for

Good to know: large videos take a few minutes to convert, and higher resolutions take longer.

Why SnipSound

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Frequently Asked Questions

How do I convert WMV to MP4?▼
Drop your WMV file onto the page and click Convert to MP4. The video is converted to H.264 with AAC audio, then you preview the MP4 and download it. Everything runs in your browser, and your video never leaves your device.
Can I play the MP4 on a Mac or iPhone?▼
Yes. H.264 video with AAC audio is the kind of MP4 Macs and iPhones play natively, which a WMV is not.
Does converting WMV to MP4 lose quality?▼
The video is re-encoded, so it is not a bit-for-bit copy, but it stays close to the original for normal viewing.
How long does it take?▼
Small clips take seconds. Because the video is re-encoded, large files take a few minutes, and 1080p or 4K video takes longer than lower resolutions. Keep the tab open until it finishes.
Is my video uploaded to a server?▼
No. The conversion runs on your own device using FFmpeg compiled to WebAssembly, so your video never leaves your device.
Is there a file size limit?▼
No fixed cap. In our testing a 1 GB file converted on a desktop computer and on a mid-range Android phone. iPhones give browsers less memory, so very large files may fail there.