Convert MOV to MP4 online
Convert a video recorded on iPhone or QuickTime in MOV format to MP4, the most compatible format. If the MOV is already H.264, it's an instant remux; if it's HEVC/H.265 (the iPhone default), it gets re-encoded to H.264 for maximum compatibility. Nothing gets uploaded to any server.
Convert MOV to MP4
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Why use PullVid for MOV → MP4?
Conversion details
How do you convert a MOV to MP4?
Choose the MOV file you want to convert to MP4 (an iPhone-recorded video, for example).
Hit 'Convert'. If the video is already H.264, the remux is instant; if it's HEVC (the iPhone default), it gets re-encoded and takes a little longer.
Download the resulting MP4; it saves straight to your device.
If you have a video recorded with an iPhone camera or exported from QuickTime in MOV format and need to share it on an Android device, a website, or a program that doesn't handle it well, this converter turns it into MP4 right in your browser: if it's already H.264 it repackages it instantly, and if it's HEVC it re-encodes it to H.264 so it stays compatible.
What's converting a MOV to MP4 good for?
MOV is the native format of the iPhone camera and of QuickTime on Mac. It looks perfect within Apple's own ecosystem, but outside of it compatibility narrows: some Android apps, older video editors and certain websites work better — or only — with MP4 and H.264 video. Converting it widens where you can play and share it.
How it works: remux if it's H.264, re-encode if it's HEVC
We use ffmpeg compiled to WebAssembly. We first check the MOV's codec: if the video is already H.264 with AAC audio, we do a remux (direct stream copy, '-c copy'), repackaging the same data inside an MP4 without re-encoding anything — nearly instant, even in 4K. If the video is HEVC/H.265 (the 'High Efficiency' mode iPhones record in by default) or ProRes, we re-encode it to H.264 so it plays on any device: it takes longer and has a minimal quality loss, but it always works. Tip: to get your iPhone to record directly in H.264, go to Settings › Camera › Formats and switch to 'Most Compatible'.
Steps to convert your MOV to MP4
- Choose the MOV file from your device ('Choose file' button).
- Hit 'Convert'. The first time, your browser downloads the conversion engine (a few MB); after that, it's faster.
- Wait a few seconds for the remux to finish.
- Download the resulting MP4 with the 'Download result' button.
What happens with Cinematic mode or ProRes videos
Videos shot in normal mode (H.264) convert instantly with a remux. Those recorded in HEVC, in Cinematic mode, or exported as ProRes (on Pro models) use codecs that MP4 doesn't play well on every device, so we automatically re-encode them to H.264: they don't fail, they just take longer than a direct remux. Either way, the result is an MP4 that plays anywhere.
Honest limits worth knowing
Since the process runs in your browser, the real limit is your device's memory, not an artificial cap of ours. Very long 4K videos (several GB) can take longer to load, especially on phones with limited RAM. And if the MOV is HEVC/ProRes, it needs re-encoding, which on a single thread in the browser is noticeably slower than a remux — for a long 4K HEVC video, a computer handles it more comfortably. It never fails because of the codec: at worst, it just takes longer.
Other related conversions
If your video comes in another container, you can also convert a MKV to MP4 (same system: remux if it's H.264, re-encode otherwise) or a WebM to MP4 (this one always re-encodes). If all you want is the audio, try MP4 to MP3 once you have the file in MP4. If you don't have the video yet, use our YouTube video downloader.
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Frequently asked questions about MOV → MP4
Why convert an iPhone MOV to MP4 if it already plays on the phone?
MOV looks perfect on Apple devices, but many Android apps, some editing programs and certain websites only accept MP4. On top of that, iPhones record in HEVC/H.265 by default, a codec that often doesn't play outside the Apple ecosystem; converting to MP4 with H.264 widens compatibility to almost anywhere.
Do I lose quality converting the MOV to MP4?
It depends on the MOV's codec. If it's already H.264, it's a remux: we copy the video and audio without re-encoding, identical to the original. If it's HEVC/H.265 (the iPhone default), we re-encode the video to H.264 so it plays everywhere; that involves a genuine re-encode with a minimal, practically unnoticeable quality loss.
Does it work with videos shot in Cinematic mode or ProRes?
Yes. Videos shot in Cinematic mode or in ProRes (on Pro iPhones) use codecs that MP4 can't play as-is, so we automatically re-encode them to H.264: they don't fail, they just take longer than a direct remux. The result is an MP4 that plays on any device.
Are the video's orientation metadata preserved?
Yes — the orientation (portrait or landscape) stays exactly as it was in the original file, whether the track is copied as-is or re-encoded.
Is there a size limit for long MOV videos?
We don't set an artificial limit, but the process runs in your browser: very large files (several GB, typical of long 4K iPhone videos) can take longer to load, especially on phones with limited RAM. The remux itself stays fast.
I don't have the MOV file yet — can I download it here?
This converter works with a MOV file you already have saved, typically recorded with an iPhone camera. If instead you want to download a video from a social network, use our YouTube video downloader, which delivers directly in MP4.