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MOV ASF
Free online converter

Convert MOV to ASF

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MOV to ASF converterFREE
Drop a .MOV file here
or pick one - we convert it to .ASF and give you the file to download

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Tested on macOS, Windows & Linux
Last verified Oct 2026

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How to convert MOV to ASF

  1. Add your .MOV file - drop it in the box above or click to browse.
  2. Convert it to .ASF in a few seconds.
  3. Download your new .ASF file.

What to expect

  • The streams are re-encoded into the ASF container (Windows Media codecs), which is lossy.
  • ASF is a Microsoft format best for Windows Media playback; MP4 is more universally supported.
  • QuickTime metadata and chapter markers may not carry into ASF.

Frequently asked questions

How does MOV to ASF affect quality?
The video and audio are re-encoded into Microsoft's ASF container, typically with Windows Media codecs, which is a lossy step. Quality depends on the target settings and will not exceed the source MOV.
Why convert a MOV to ASF?
ASF is Microsoft's container underlying Windows Media Video and Audio, so it suits older Windows-centric playback or workflows built around Windows Media. For broad modern compatibility, MP4 is usually the better target.
What opens an ASF file?
On Windows, Media Player handles ASF directly. On macOS, Linux, Android, or iOS, the free VLC media player plays it.
Is there anything ASF can carry that could block playback?
ASF/WMV files can carry DRM, but that protection is not added by converting a plain MOV - the output is unprotected media. QuickTime-specific metadata from the MOV may not map into ASF.
Learn about the formats: .MOV · .ASF
Programs that convert MOV: Adobe Premiere Pro · Aimersoft DRM Media Converter for Windows · AviDemux · Free Studio · MediaCoder · Movavi Video Converter Personal · SUPER · WinX Video Converter