Step 1: Supply your MP4 files using the button above or by haul and lay.
Step 2: Click the 'Convert' button to start the conversion.
Step 3: Get your converted WMV files.
MP4 to WMV Conversion FAQ
What does the MP4 to WMV converter do?
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Converting modern MP4 into WMV is useful for older editing software or legacy playback hardware. The converter remuxes or re-encodes as needed; expect a larger file because legacy codecs compress less efficiently.
Will resolution and frame rate be preserved in the WMV?
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Yes. MP4 → WMV keeps resolution, frame rate, and aspect ratio unchanged by default. To change them, use the Resize or Speed tool on the result.
Is the MP4 to WMV conversion reversible?
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You can convert the WMV back to MP4 on this site. If either format involved is lossy, the round-trip is not bit-perfect even though it is visually or audibly close.
Will the converted WMV be a different size than the MP4?
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Modern codecs compress better, so WMV from a legacy MP4 is typically 30-60% smaller at equivalent quality. Conversions in the opposite direction can grow the file.
What happens to the subtitle tracks in my MP4 file?
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They cannot stay selectable, because WMV has no soft-subtitle stream to hold them. There are two ways out: burn them into the video during conversion, which makes them permanent and unstyleable, or export them as a separate .srt alongside the WMV for the player to load. The converter tells you which it did rather than dropping them silently. WMV is effectively a dead end: macOS, iOS, Android and every browser need third-party decoders, and some WMV files carry DRM that cannot be converted at all.
Can I still embed the file on a web page after converting MP4 to WMV?
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Not directly. MP4 plays inline in every browser; WMV does not, so a page embedding it falls back to a download link or an empty player frame. If the file is destined for a website, keep the MP4 for the web and treat the WMV as the archive or editing copy.
Will the WMV still play smoothly on a phone or a TV?
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It may not. MP4 is decoded by dedicated silicon on phones, tablets and TVs, which is why it plays without flattening the battery. WMV typically falls back to software decoding on the same hardware — higher CPU load, a warmer device, and dropped frames on 4K material. For a device target, MP4 is the safer container to stay in.
Why would I convert MP4 to an older format like WMV?
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Because a lot of hardware never learned anything newer and never will. DVD players, in-car head units, camcorder playback modes, industrial displays and plenty of broadcast ingest equipment accept WMV and nothing else. The conversion is a deliberate step down in efficiency, bought in exchange for working on a device that has no other option. WMV compresses well for its age and remains the format PowerPoint, older Windows screen recorders and corporate media libraries expect.
Is there a file-size limit when converting MP4 to WMV?
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Anonymous uploads are capped at a generous default; signed-in free accounts get a higher cap, and Pro accounts have no per-file limit. Browser memory is usually the practical constraint long before our server-side limits kick in.
Can I batch-convert several MP4 files to WMV at once?
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Yes. Drop or pick multiple MP4 files in one upload — the converter processes them in parallel and returns a ZIP of the WMV results. There is no need to repeat the upload step per file.
What happens to my MP4 files after the conversion?
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Uploaded files and WMV outputs are auto-deleted after a short retention window. We do not inspect, share, or train on user files. Direct download links are time-limited and tied to your session.
Will my WMV play on phones, tablets, and TVs?
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WMV plays in most desktop players but is sometimes unsupported on mobile and TV. For broadest reach, consider MP4 instead.
