Convert
iPhone videos that play everywhere
Convert MOV videos from iPhones and Macs into MP4 files that play on any device, locally in your browser.
For the best results: iPhone HEVC footage is re-encoded to H.264, which every device can play, though files may grow slightly because HEVC compresses more tightly.
Advanced settingsoptional, defaults work well
Converted entirely in your browser, your files are never uploaded. Very large files depend on your device's memory.
What is MOV to MP4?
MOV to MP4 is a free file converter that converts QuickTime MOV files from iPhones and Macs into MP4 files that Windows, Android and web players all accept, locally. The video is processed by an ffmpeg engine running inside your browser, so your footage is never uploaded anywhere. There is no queue and no watermark, and after the first load it keeps working without a connection.
- ✦Runs entirely in your browser. Nothing you enter is ever uploaded
- ✦No account, no sign-up, and no data leaves your device
- ✦Works offline once the page has loaded
See it in action
iPhone footage arrives as .mov and the editing suite wants plain MP4.
What you drop in
holiday.mov (H.264 video + AAC audio)
What you get
holiday.mp4 with both streams intact: in testing the audio track decoded perfectly after conversion, and dimensions and duration matched the source exactly.
Tip: Whether the MOV holds HEVC from a recent iPhone or plain H.264, the video is re-encoded to a clean H.264 MP4 at a quality most viewers cannot tell from the source. Unusual codecs from older cameras convert the same way instead of failing.
Use cases
What people use it for
Make an iPhone-filmed birthday video watchable for relatives whose Android phones reject the MOV file.
Convert Mac screen recordings into MP4s the office Windows machines open without extra codecs.
Prepare iPhone footage for a council grant application portal that only accepts MP4 uploads.
Who uses MOV to MP4?
iPhone owners
share filmed moments with Android-using friends and family without the dreaded unsupported format message
Mac-based freelancers
deliver screen recordings and drafts to clients on Windows in a format nobody has to troubleshoot
Grant applicants
convert phone-shot evidence videos into the MP4 files that government and funding portals demand
How it works
- 1Choose your files. They open in your browser, not on a server.
- 2Your device converts, compresses, or resizes them locally, with no upload.
- 3The converted files download straight back; nothing is kept anywhere.
Tips for the best results
- Convert on a computer rather than a phone when clips run long, since encoding is processor-hungry.
- If the finished MP4 also needs to meet an upload size limit, run it through the Video Compressor afterwards.
- Keep the HEVC original as your master copy and treat the MP4 as the sharing version.
- Switch the iPhone camera to its most compatible setting if recipients constantly struggle with your videos.
- Test one short clip end to end before converting a whole camera roll of footage.
FAQ
Frequently asked questions
Why does my iPhone record videos other devices cannot play?
Recent iPhones default to recording HEVC, also called H.265, inside Apple's QuickTime MOV container. HEVC squeezes the same quality into roughly half the space of H.264, which suits phone storage, but its patent licensing costs made many manufacturers and programs skip the decoder. The result is superb files that a frustrating number of devices refuse to open.
What exactly does the conversion change?
Two things at once. The container swaps from MOV to MP4, close cousins that descend from the same QuickTime design, and the video is re-encoded from HEVC to H.264, the codec with genuinely universal support. The output keeps the original resolution and plays on effectively anything made in the last fifteen years, from budget Androids to office projectors.
Will converting from HEVC to H.264 hurt the quality?
Marginally in theory, rarely in practice. Re-encoding is a lossy step, but at a sensible quality setting the difference sits below what viewers notice on a phone or TV. Expect the MP4 to come out larger than the MOV, since H.264 needs more data than HEVC to describe the same footage. That size increase is the price of compatibility.
Are my personal videos exposed during conversion?
They cannot be, because the work never leaves your device. The page runs ffmpeg as WebAssembly inside the browser, decoding the HEVC and encoding H.264 entirely in local memory before offering the MP4 as a download. Footage of your kids or your home has no copy on any server, since none was ever contacted.
Why does the conversion take a while for longer clips?
HEVC decoding plus H.264 encoding is heavy arithmetic, and the browser performs it single-threaded on your processor, which is honestly slower than a native desktop converter. A short clip finishes quickly; several minutes of 4K footage takes real time. Leave the tab open and visible, and let it grind through to the end.
Why will my iPhone video not play on Windows?
Older Windows versions lack a built-in HEVC decoder, historically offered as a paid add-on because of codec licensing, so iPhone MOV files open to a black screen or an error. Converting to H.264 in an MP4 solves it at the file level, meaning the recipient needs no new software at all.
Can I stop my iPhone recording in MOV format?
You can steer the codec: in the camera settings, choosing the most compatible option records H.264 instead of HEVC, at the cost of larger files on the phone. For footage already shot, conversion is the only path, and doing it here keeps everything on your own machine.
Does converting MOV to MP4 keep the original resolution?
Yes, the frame size passes through unchanged, so 4K stays 4K and 1080p stays 1080p. Only the compression method changes. Keep in mind that re-encoding high-resolution footage is the slowest job this engine does in a browser, so give long 4K clips time and a plugged-in laptop.
Are there any usage limits?
None. Everything is generated locally in your browser, so there is no server cost, no metering, and no daily cap, use it as many times as you like, completely free.
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