ASF to MOV Converter

Convert ASF to MOV Online

ASF is Microsoft's Advanced Systems Format — the container behind Windows Media video (.wmv) and audio (.wma), which Apple's QuickTime, Final Cut Pro, and iMovie don't read natively. Converting to MOV rewraps that footage into Apple's QuickTime container with an editor-friendly codec like H.264, so old Windows-Media clips drop straight into a Mac editing timeline. This step re-encodes the video, so set a high Quality Preset to keep the result as close to the source as possible — converting can't add detail the ASF file never had.

How to Convert ASF to MOV

1. Upload Your ASF File: Drag and drop your .asf (or .wmv) file onto the page, or click "+ Add Files" to browse. Files are uploaded over an encrypted connection.
2. Set the Quality Preset: Open Advanced Options and choose a Quality Preset — leave it on Very High (Recommended) for an editing master, since the conversion re-encodes and a higher preset preserves more of the original detail. To hit an upload cap instead, switch to Specific file size and enter a target.
3. Adjust Video Resolution (Optional): Keep Keep original to match the source, pick a Preset Resolution, or set a custom Width x Height. Use Trim with a Time Range to export only part of the clip.
4. Convert and Download: Click "Convert" and download your MOV. No sign-up, no watermark.

ASF vs MOV at a Glance

Frequently Asked Questions

Will converting ASF to MOV improve the video quality?

No. The conversion rewraps your footage into a QuickTime container and re-encodes it with a new codec, but it cannot recover detail the original ASF file never recorded. Because the source is decoded and re-compressed, a low Quality Preset can actually look slightly worse than the original. Keep the preset at Very High when the MOV is headed for editing, and treat the output as a format change, not an upscale.

Why won't my ASF or WMV file open in QuickTime or Final Cut Pro?

ASF, .wmv, and .wma are all the same Microsoft container, and Apple's QuickTime engine doesn't decode the Windows Media (VC-1/WMV) codecs inside them without extra components. Converting to MOV re-encodes the video to an Apple-friendly codec such as H.264, so QuickTime, iMovie, and Final Cut Pro can import and scrub it natively. If your file ends in .wmv, use WMV to MOV — it's the same ASF container with a different extension.

Which codec should I pick for editing in Final Cut Pro or iMovie?

H.264 in a MOV is the safest general-purpose choice: it imports cleanly into every modern version of Final Cut Pro and iMovie and keeps file sizes manageable. In our testing, exporting an ASF clip to MOV at the Very High preset produced an H.264 MOV that imported into iMovie without a transcode-on-import prompt, whereas the original ASF was rejected outright. If you need maximum edit performance and don't mind larger files, an intermediate codec is better suited to long timelines, but H.264 is the right default for most projects.

Should I convert ASF to MOV or to MP4 instead?

Choose MOV when the footage is going into an Apple editing app (Final Cut Pro, iMovie, QuickTime) — it's the format those tools expect. Choose MP4 for the widest playback compatibility across phones, browsers, smart TVs, and Windows. Both can carry H.264 video, so quality is comparable; the difference is the container and where it plays best. For the universal option, use ASF to MP4 instead.

Is anything kept on your servers after I convert?

Your file is uploaded over an encrypted connection, converted on our servers, and deleted automatically a few hours after the conversion finishes. There's no sign-up, no watermark, and files are never shared or made public. If the resulting MOV is larger than you'd like for sharing, run it through Compress MOV to bring the size down.