WMV to MP4 Converter
Drop in a WMV and get back an MP4 that plays on everything made this century. Converted in your browser, on your machine, nothing uploaded.
Drop your WMV here
Movie Maker exports, old Windows video, .asf too.
Converts on your device. Your file never leaves this page.
- Movie Maker era files
- Full re-encode, done properly
- No upload, converts on-device
- Free, no sign-up, no watermark
A converter that stays out of your way.
There’s no upload bar and no sign-up wall. You get your file back as an MP4, and that’s the whole transaction.
WMV in, MP4 out
Drop in a WMV file and get back an MP4 that plays on phones, TVs, editors, and upload forms alike. Same name, same footage.
Fast when the file allows it
When the video inside is already MP4-friendly, it gets repackaged in seconds with zero quality loss. Only files with older codecs need a real re-encode.
Your video stays on your machine
Most online converters upload your footage to their server. This one doesn't. The work happens inside this browser tab, and closing the tab clears everything.
Sound handled too
The audio track comes along automatically, converted only if the format demands it. Videos without sound convert just the same.
Windows Media’s video half
WMA got the music; WMV got everything else. Movie Maker exports, PowerPoint-era clips, early camera software, corporate training videos: for about a decade, Windows machines produced video in a format that only Windows machines reliably played. Then even Windows moved on, and the files became a drawer of keys to doors that no longer exist.
Unlike the MOV and MKV pages on this site, there’s no instant-repackage trick available here; Windows Media codecs and MP4 simply don’t overlap, so this is a real conversion, done frame by frame in your browser. Slower, but the files never leave your machine, and once through, they never need converting again.
Movie Maker’s orphans
The most common WMV in the wild isn’t a download; it’s something someone made. Windows Movie Maker was the first video editor most people ever touched, and its one output format was WMV. The graduation montage, the anniversary slideshow, the school project with the Star Wars crawl: all WMV, all increasingly unplayable.
Those deserve rescuing properly. Convert them here, check the result plays, and store the MP4 next to the original. The edit that took someone a weekend in 2008 shouldn’t be lost to a codec license.
About .asf files
Occasionally the same video wears an .asf extension, which is the raw name of the container WMV lives in. Drop those in too; they convert identically. And as with the other rescue pages here: if a file refuses outright, DRM from an old media store is the usual culprit, and locked files stay locked by design.
How to convert WMV to MP4
Three steps, less than a minute. No setup, no sign-up.
Drop in the WMV file
Drag it into the box above, or click Choose a file and pick it from a folder.
Let it work
Most WMV files just get repackaged and finish in seconds. Files that need a real re-encode take longer; the progress bar tells it straight either way.
Save the MP4
Hit Download and the MP4 lands with the same name as the original, ready to play, edit, or upload anywhere.
WMV to MP4 converter FAQ
Because Windows Media codecs never made it into the MP4 world; there's no shortcut where the stream just moves over. The video gets decoded and rewritten as H.264, the audio as AAC. It takes longer than a repackage, and the progress bar is honest about it.
Marginally, in the way any re-encode does, but WMV-era video is usually standard definition to 720p, and the conversion preserves what's there. The visible artifacts in old WMVs were baked in by the original encoder, not added now.
Rough guide: a few minutes for a typical clip, longer for feature-length files. These are mostly older, smaller videos, which keeps it manageable. Leave the tab open and let it work.
Exactly the right fix. Movie Maker exported everything as WMV, so a generation of school projects, wedding slideshows, and family edits are stuck in it. Converted to MP4, they play on phones, TVs, and every editor made since.
No. The conversion happens inside this browser tab, on your machine. Free, no account, and your videos go nowhere.
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