MOV file format: what it is and how to use it

MOV is Apple's QuickTime container: the atom-based movie file that became the ancestor of MP4 and still anchors pro-video pipelines. Learn when to use it and what to choose instead.

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What is a MOV file?

A .mov file is a movie in Apple's QuickTime container, the atom/structure format from 1991 whose design MPEG-4 later adopted almost wholesale: time-based tracks for video, audio, text and timecode, plus the edit lists and references production tools rely on. It remains the house format of Final Cut Pro, iPhone recordings and ProRes.

When should you use MOV?

  • Apple production pipelines: Final Cut, iPhone capture, ProRes masters.
  • Editing intermediates: mezzanine codecs (ProRes, DNx) live here.
  • Professional delivery: post-production hand-offs that expect .mov.

When is another format a better fit?

For distribution and playback, MP4 is its own descendant: same structure, universal support. For multi-track archives MKV; for the open web WebM. MOV is a production format first, a delivery format second.

The short version: MOV is the professional's container: work in it, then ship an MP4.

How to open a MOV file

On Windows

Double-click the file, or open it with VLC.

On macOS

QuickTime Player opens MOV files on macOS.

In your browser

Open MOV files right in a browser tab or with the dexrr viewer. No install, no upload.

Also opens in

  • QuickTime Player
  • VLC
  • mpv
  • iTunes

View or convert MOV files

A quick preview or a new format. No install, no upload.

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MOV technical details

Full name
QuickTime movie
Extensions
.mov .qt
MIME type
video/quicktime
Magic bytes
… 66 74 79 70 71 74 20 20 (ftyp qt)
Compression
Lossless or lossy
Developer
Apple
Specification
developer.apple.com

MOV questions, answered

How do I open a .mov file?

QuickTime, VLC, iPhones and virtually every player opens it; ProRes variants may need a codec on Windows. dexrr plays and converts mov files directly in your browser.

Can I convert MOV files online?

Yes, dexrr converts mov locally in your browser: MOV to MP4 for universal playback or MOV to WEBM for the web.

Is MOV better than MP4?

For production, often, since ProRes and editing metadata live naturally there. For delivery, MP4 wins because everything plays it. Same bones, different jobs.

Why is my iPhone video a .mov?

iPhones record into QuickTime containers with H.264/HEVC inside, and converting to MP4 is usually just a container change, no quality lost.

Is the MOV format outdated?

The format is older than MP4 but fully alive. It is still the default of Apple's capture and pro-video ecosystem.