WMV to MP4 · Free

Convert WMV to MP4

Turn your WMV file into an MP4 that plays where you need it, with nothing to install.

Free to start
Nothing to install
Up to 1GB

How it works

How to convert WMV to MP4

Upload your WMV file
Drag and drop a WMV file to turn into MP4, or click to browse. Anything under 1GB, and nothing is installed.
Confirm MP4 as the output
MP4 is already selected, so there is nothing to configure. Switch to another format in the panel if WMV needs to go somewhere else.
Convert and download
We convert the WMV on our servers, usually in under a minute. Create a free account to download the MP4.

Why convert WMV to MP4?

WMV is Microsoft’s Windows Media format. It shows up in old corporate video libraries and PowerPoint exports, and it stops dead the moment a file has to leave Windows.

The practical problem: macOS, iOS and Android need extra software, and usually just fail. Browsers cannot play WMV, so it can never be embedded on a page. Its compression is generations behind H.264, so files are bigger than they need to be.

MP4 solves that. Plays natively on every phone, browser, TV and editing app with no extra codecs. Every upload form accepts it, from YouTube and LinkedIn to Slack and email. H.264 keeps files small enough to send while still looking sharp at 1080p.

WMV is the format that stops the moment a file leaves Windows: no browser plays it, and Macs and phones need extra software. Converting to MP4 makes an old corporate or PowerPoint video shareable again without hunting down codecs.

Container

WMVAdvanced Systems Format (ASF)

MP4MPEG-4 Part 14

Typical codecs

WMVWindows Media Video

MP4H.264 video, AAC audio

Best for

WMVLegacy Windows workflows and old PowerPoint decks

MP4Sharing anywhere, uploads, web embeds

Plays on

WMVWindows; almost nothing else

MP4Every phone, browser, TV and editor

File size

WMVModerate, but dated compression

MP4Small for the quality

Feature	WMV	MP4
Container	Advanced Systems Format (ASF)	MPEG-4 Part 14
Typical codecs	Windows Media Video	H.264 video, AAC audio
Best for	Legacy Windows workflows and old PowerPoint decks	Sharing anywhere, uploads, web embeds
Plays on	Windows; almost nothing else	Every phone, browser, TV and editor
File size	Moderate, but dated compression	Small for the quality

FAQ

WMV to MP4 questions

Is the WMV to MP4 converter free?

Yes. Convert and preview the result for free, then create a free account to download it. There is no per-file charge and no watermark on the MP4 itself beyond the free-plan badge.

Do I need to install any software?

No. The conversion runs on our servers and you use it from a browser tab, so it works the same on Windows, macOS, Linux, iPhone and Android. Nothing to install at either end. Where WMV plays: Windows; almost nothing else. Where the MP4 you get back plays: Every phone, browser, TV and editor.

Does converting WMV to MP4 reduce the quality?

Converting re-encodes the video, so it is not bit-for-bit identical. We encode at a high quality target, which keeps the result visually indistinguishable from the WMV on normal viewing. What changes is the container and the codec. MP4 holds: H.264 video, AAC audio. Converting the same file back and forth repeatedly will eventually show, so keep your original.

How large a file can I convert?

Anything under 1GB per upload, which is more footage in some formats than others. WMV: Moderate, but dated compression. MP4 coming back: Small for the quality. For anything bigger, trim or compress it first, both are free tools here.

Is my file kept private?

Your upload is processed and then held only as long as your project needs it. Nothing is published, indexed or shared unless you create a share link yourself.

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