MP4 vs MOV

Nearly the same container; MP4 is the one to hand over.

Choose MP4 when

Sharing, uploading and playback anywhere. MP4 is the most widely accepted video container there is.

Choose MOV when

Editing inside the Apple ecosystem, where MOV carries the extras — ProRes, timecode, alpha — that a delivery format drops.

The thing that catches people out

Both are the same underlying container, so converting between them is often a rewrap rather than a re-encode: fast, and without a second generation of quality loss.

Side by side

MP4MOV
Full nameMPEG-4 VideoQuickTime Movie
Extension.mp4.mov, .qt
Media typevideo/mp4video/quicktime
CompressionLossy — file size is bought with qualityLossy — file size is bought with quality
This site can write itYesYes

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