Vis Exo
CONVERT — MOV TO MP4
MOV to MP4 Converter, Free — Usually Lossless
MOV is the Apple container, and plenty of software treats it as a foreign object. The good news: most MOV files from an iPhone, a Mac screen recording or Final Cut already carry H.264 video and AAC audio — so converting is a repack rather than a re-encode.
Most MOV Files Only Need a New Wrapper
A container swap, not a re-encode
When the video inside is H.264 and the audio is AAC or MP3, the streams are copied into an MP4 container sample for sample. Nothing is decoded, nothing is re-compressed, and the result is identical in quality.
Near-instant for those files
With no encoding to do, the conversion is limited by disk speed rather than by your processor. A normal clip finishes in about a second.
The tool tells you which one you have
After you pick a file, the page reads its real codecs and says outright whether it will be re-wrapped or re-encoded. No guessing, and no surprise about how long it will take.
When it genuinely needs a re-encode
A MOV holding ProRes, DNxHD or HEVC cannot be copied into a widely playable MP4, so the video is re-encoded to H.264. That takes real time, and the page says so before you start rather than after.
Three Steps, In Your Browser
- 1
Choose the MOV
Drop it in, or pick it from the file browser. The codec read-out underneath is the line worth watching.
- 2
Check the plan line
If it says the file is already H.264 and will be re-wrapped rather than re-encoded, you are on the fast lossless path. Leave the target on MP4 and keep the original resolution.
- 3
Convert and save
The finished MP4 plays in the page straight away. Save it and it will open in Premiere, Resolve, QuickTime, Windows and any phone.
MOV to MP4 on iPhone, Mac, Windows and Android
The same page works everywhere, with nothing to install. What differs is where the file comes from and where it goes.
iPhone & iPad
Pick the MOV from Photos or Files in Safari. Most iPhone clips are H.264 or HEVC, so they are either re-wrapped instantly or converted to H.264.
Mac
QuickTime and screen recordings are MOV by default. Most re-wrap to MP4 in about a second, with no quality lost.
Windows
Windows often refuses iPhone MOV files. Converting in Chrome or Edge gives an MP4 that the Photos app and every editor opens.
Android
A MOV someone sent you from an iPhone converts in Chrome, then plays in Google Photos and any Android player.
Which Target for a MOV?
Three options, honestly compared — including when the right answer is to convert nothing at all.
| Target | Pick it when | Watch out for |
|---|---|---|
| MP4 — H.264 + AAC | The MOV already holds H.264 video and AAC or MP3 audio — an iPhone clip, a screen recording. | A pure re-wrap: no re-encode, no quality change, near-instant. |
| MP4 — re-encoded | The MOV holds ProRes, DNxHD or HEVC and the target does not play it. | This one decodes and re-compresses, so it is slower and slightly lossy. |
| WebM — VP9 + Opus | A web page that should stay royalty-free and small. | Not what QuickTime or Final Cut expect if the file is coming back. |
MOV to MP4 FAQ
Will converting MOV to MP4 lose quality?
Not if the file already contains H.264 and AAC — the media is copied into the new container untouched, so the output is the same quality. Only files with other codecs, such as ProRes or HEVC, are re-encoded.
Why convert at all when the MOV already plays on my Mac?
Windows, Android, most televisions, many web players and a good deal of editing software handle MP4 more reliably. MP4 also carries no Apple-specific assumptions, which is what matters once the file has to travel.
How long should it take?
A compatible file is a container swap and takes about a second. A file that must be re-encoded runs at whatever speed your device can encode H.264, which is faster than real time on a modern laptop.
Can it handle a MOV from an iPhone?
Yes. iPhone MOV files are normally H.264 or HEVC with AAC audio, so those are either re-wrapped or converted from HEVC into H.264.
Is this free, or is there a catch at the end?
It is free with no account, no watermark and no export limit. Because the work happens on your own device, there is nothing for a server-side service to meter or upsell.
Related Converters
HEVC to H.264
Modern phones record H.265 to save space, then half the world will not play it. This converts it to H.264, the codec everything decodes.
WebM to MP4
Screen recordings and browser captures arrive as WebM, which iPhones and QuickTime will not open. This turns them into H.264 MP4s.
MKV to MP4
Matroska is the archive container, and its contents are frequently H.264 and AAC already — so the conversion is usually a lossless re-wrap.
Compress a Video
Keep the format, drop the resolution and the bitrate — the same engine that converts also makes files smaller.
Convert it, then track something in it
Vis Exo adds blob tracking, pose skeletons, trails, LUT grades and captions to the finished MP4 — free, and entirely in your browser.