Convert WMV to M4V

Convert WMV files to M4V locally, completely free and with maximum privacy.

Drag and drop your files here

or click to browse local files (large files supported, limited only by browser RAM)

Upload Files

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How to convert WMV to M4V

  1. Drop your .wmv files above, or click Upload Files. You can add many files at once.
  2. M4V is already selected as the output. Open the settings (gear icon) to fine-tune the result.
  3. Click Convert All. FFmpeg runs inside your browser through WebAssembly; nothing is uploaded.
  4. Download your .m4v files as soon as each one finishes.

What to know about WMV to M4V conversion

  • The video is re-encoded to H.264 video and AAC audio so it plays wherever M4V is supported, and odd frame sizes are adjusted automatically.
  • You can change the resolution, frame rate, playback speed and quality (CRF) before converting.

WMV vs M4V

FeatureWMV (Windows Media Video)M4V (Apple MPEG-4 Video)
Codecs used by PureConverterWMV2 video and WMA audioH.264 video and AAC audio
Best forWindows Media Player and older Windows PCsiTunes and Apple TV libraries
Opens inWindows Media Player, VLC, mpv and most media playersApple TV app, iTunes and VLC, mpv and most media players

WMV (Windows Media Video): A video container and codec family developed by Microsoft for Windows Media Player.

M4V (Apple MPEG-4 Video): An MPEG-4 video container used by Apple for iTunes and iOS devices.

Conversion options

  • Resolution: original, 1080p, 720p, 480p or 360p
  • Frame rate and playback speed (0.5× to 2×)
  • Quality presets or a custom CRF value, and lossless mode
  • Audio bitrate, sample rate and channels

Frequently asked questions

Is it safe to convert WMV to M4V here?

Yes. Your files are processed entirely on your own device by WebAssembly code running in the browser. They are never uploaded, so nobody else can see them, and the converter keeps working even if your connection drops after the page loads.

Is there a file size limit?

There is no server-side limit. The only limit is the memory available to your browser, typically 1.5–4 GB on desktop computers.

Can I convert several WMV files at once?

Yes. Add as many files as you like; they are converted in parallel according to your device's CPU cores, and you can apply the same settings to all of them.

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