Convert WMV to MP4
Convert your WMV video to MP4. Free, instant, private — nothing is uploaded.
Drop your WMV video here, or click to browse
Converts WMV to MP4 — .wmv files only
Related tools
Why use PixelTools to convert wmv to mp4
Clean WMV to MP4 conversion
Fully re-encodes a legacy Microsoft container wrapping VC-1 or WMV3 video with WMA audio into the most universally compatible video container, usually wrapping H.264 or H.265 video with AAC audio, using ffmpeg's native encoders so the output plays correctly wherever MP4 is expected.
100% private — no upload
Conversion runs entirely in your browser using WebAssembly. Your WMV file is never sent to a server, stored, or seen by anyone but you.
No account, no watermark
Free to use with no sign-up, no file limits, and no watermark on your MP4 output.
Why convert to MP4
The one format virtually every phone, editor, platform, and TV accepts without question.
Works on any device
Fully responsive with touch-friendly controls — convert your WMV file from your phone, tablet, or desktop without installing anything.
Safe for sensitive footage
Because nothing leaves your device, this is safe to use on old Windows Movie Maker exports, corporate training videos, and Windows Media Center recordings or any other clip you can't upload to a third-party server.
Three steps to convert wmv to mp4
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Drop your WMV video
Drag and drop your WMV file onto the page, or click to browse. Nothing is uploaded — the file stays on your device.
- 2
Conversion runs in your browser
A WebAssembly build of ffmpeg re-containers or re-encodes the video to MP4 entirely on your device. A progress bar shows the conversion as it runs.
- 3
Download your MP4 file
Preview the result right on the page, then click Download to save the MP4 file to your device.
Who converts WMV to MP4?
Whether you're a video editor, a content creator, or just need one clip in a different container — PixelTools converts WMV to MP4 instantly in your browser, with no upload and no account needed.
Working with old Windows Movie Maker exports, corporate training videos, and Windows Media Center recordings
WMV files typically come from old Windows Movie Maker exports, corporate training videos, and Windows Media Center recordings. Converting to MP4 makes them usable in the apps and platforms that actually need them.
Publishing or sharing as MP4
The one format virtually every phone, editor, platform, and TV accepts without question, which is exactly why people convert WMV to MP4 before sharing, uploading, or editing.
Editing and production workflows
Video editors and producers convert WMV to MP4 to match the container their NLE, platform, or client actually expects.
Fixing playback on the destination device
A WMV file that won't open on a phone, TV, or web uploader often just needs its container swapped to MP4 — no other editing required.
Frequently asked questions
Is the WMV to MP4 converter free?
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Yes, completely free with no limits. Convert as many files as you want. No subscription, no account, no watermark.
Does this tool upload my video to a server?
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No. The conversion happens entirely in your browser using WebAssembly. Your WMV video never leaves your device.
Why convert WMV to MP4?
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WMV is a legacy Microsoft container wrapping VC-1 or WMV3 video with WMA audio, typically from old Windows Movie Maker exports, corporate training videos, and Windows Media Center recordings. The one format virtually every phone, editor, platform, and TV accepts without question.
Will the video quality change?
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This conversion always re-encodes the video and audio into the target codec, so it isn't literally lossless — but it uses a quality setting tuned to be visually indistinguishable from the source at typical viewing sizes, at the cost of a longer conversion than a same-length stream-copy pair.
Is there a file size limit?
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Files up to 2GB are supported. Very large files take longer to process since everything runs on your device's CPU rather than a server.
Can I use the converted MP4 file commercially?
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PixelTools does not claim any rights over files you process. The output is yours to use however you like, subject to any rights the original file's owner holds.
I have an old .wmv file from Windows Movie Maker or a corporate training video — why won't anything modern play it?
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WMV was Microsoft's default video export format through the Windows XP and Windows 7 era, built around the VC-1 codec and WMA audio — codecs that were never widely adopted outside Windows Media Player. iPhones, Android phones, most browsers, and nearly every modern video editor never added WMV support. This conversion always fully re-encodes to H.264/AAC inside an MP4 wrapper, since VC-1 isn't stream-copy compatible with MP4, but the result plays everywhere H.264 does.
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