WMV to MP4

Upload a WMV file and download it as MP4. Free to start.

Drop files here, or press Enter to choose them. Up to 50 MB per file.
Drop a WMV file hereFree · up to 50 MB · 10 operations in total without an account · or paste with Ctrl+V
  • Sent over HTTPS · link expires in 24 h

How it works

  1. Step 1:

    Drop the WMV file on the orange block above, or press “Choose WMV”.

  2. Step 2:

    Press “Convert to MP4”. The block shows the progress while the server converts the file.

  3. Step 3:

    Press “Download” to save the MP4 file. On Free the link works for 24 hours.

How WMV to MP4 conversion works

The Windows Media Video format stores video encoded with the proprietary VC-1 or WMV codec in a Microsoft ASF container, primarily a Windows ecosystem format. Converting to MP4 produces a video file that packages H.264 or H.265 video with AAC audio in a container format widely supported across every platform and device. This conversion changes the file's encoding, compression method, and supported feature set. When the source codecs already match the target container the streams are copied without re-encoding (zero quality loss); otherwise the video is re-encoded at a configurable quality. This makes MP4 the practical choice when the destination system requires it or when the target format offers better compatibility or compression. 1converter runs this conversion on the server: your file is uploaded encrypted over HTTPS, converted using trusted open-source libraries, and the output is held for 24 hours before automatic deletion.

Quality levels for WMV → MP4

LevelFile sizeSpeed
Low qualitySmallest file, basic qualityVery smallVery fast
Medium qualityRecommendedBalanced size and qualityMediumFast
High qualityLarger file, great qualityLargeModerate
Maximum qualityLargest file, best possible qualityVery largeSlow

Video Tip: Medium quality is ideal for web streaming. Use High or Maximum for videos you plan to edit further or archive.

When to convert

What the MP4 file is good for and why people convert to it.

  • Improves compatibility with phones, browsers, and most media players using MP4 containers
  • Enables easier sharing because MP4 is widely supported across platforms and apps
  • Convert recorded WMV training videos to MP4 for uploading to websites and LMS systems
  • Turn WMV camcorder captures into MP4 for editing in common NLEs and timeline tools

Where your file goes

  • It travels to our server over an encrypted HTTPS connection and is converted there.
  • The MP4 file comes back as a private link. It stops working after 24 hours on Free and 7 days on paid plans, and then the files are deleted.

Questions and answers

What people ask before converting WMV to MP4.

Ask supportAll questions
Will converting WMV to MP4 improve quality?
It may improve perceived quality if the MP4 uses efficient H.264 settings, but conversion is typically a re-encode, so extreme quality gains aren’t guaranteed. The result usually depends on the WMV’s original bitrate and your chosen MP4 quality.
Do WMV and MP4 use different compression methods?
Yes—WMV is usually encoded with Windows Media codecs, while MP4 commonly uses H.264 video and AAC audio. This difference is why MP4 often achieves better compression at similar visual quality.
Will my audio keep working after conversion?
Most WMV files contain audio that can be mapped into MP4, typically into AAC inside the MP4 container. If the WMV has unusual codecs, the converter may need to transcode audio to ensure compatibility.
Is MP4 more compatible than WMV?
MP4 is supported by far more devices and software for playback and editing, while WMV support is more limited. Converting to MP4 usually reduces playback issues caused by missing WMV codecs.

More about this pair

Many files at once? Starter converts 5 at a time, 100 a day.

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