How to convert MOV to MP4
Drop your MOV files into the box above, or click Choose files. You can add several at once.
Choose a quality. It only matters if the video has to be re-encoded; compatible videos are copied without any loss.
Click Convert to MP4. Files are processed on your device; a few minutes of media usually takes seconds.
Download the MP4 files one by one, or all at once as a ZIP.
Why convert MOV to MP4?
MOV is Apple's QuickTime format. It plays well on Apple devices, but some Windows apps, Android phones, smart TVs and upload forms don't accept it.
MP4 is the most widely supported video format there is. Converting lets you upload, share and edit your clips anywhere without compatibility surprises.
Converting in the browser means your personal videos never leave your device, and there's no waiting for a large upload before the conversion even begins.
MOV vs MP4
MOV and MP4 are closely related containers, and often hold exactly the same H.264 video and AAC audio. In that case the conversion simply rewraps the streams: it takes seconds and changes nothing about quality.
iPhones record in HEVC (H.265) by default. HEVC videos are re-encoded to H.264 so they play on every device, at the quality you choose.
| Property | MOV | MP4 |
|---|---|---|
| Typical video codec | H.264 or HEVC from iPhones; ProRes from cameras | H.264 (AVC), sometimes H.265 or AV1 |
| Typical audio codec | AAC or uncompressed PCM | AAC |
| File size | Often large, especially HEVC and ProRes | Efficient |
| Best for | Recording and editing on Apple devices | Sharing and uploading video anywhere |
| Support | Apple apps; patchy on Windows, Android and websites | Every phone, browser, TV and editing app |
Is it safe?
Yes. MOV to MP4 runs entirely in your browser. Your files are read and converted by your own device using built-in browser technology, so they are never uploaded to a server and nobody else can see them.
You can check this yourself: open your browser's developer tools, switch to the Network tab and convert a file. No upload requests are made.
Videos are processed by your browser's own media engine (WebCodecs), usually with hardware acceleration. Nothing is uploaded, which also makes the conversion start instantly, however big the file.
Files stay in this tab's memory only until you remove them or close the page.
Frequently Asked Questions
Will I lose quality converting MOV to MP4?
Not if the video is H.264: it's copied into the MP4 as-is. HEVC videos from iPhones are re-encoded to H.264 at high quality by default; the result says which of the two happened.
Why do iPhones record MOV files?
MOV is Apple's native container, and iPhones use it with the High Efficiency (HEVC) codec to save space. Choosing Settings → Camera → Formats → Most Compatible records H.264 instead, which converts instantly here.
Which browser works best?
Current Chrome, Edge and Safari support hardware video encoding and decoding. Firefox works for most files but can't decode HEVC. If a file can't be processed, you'll see a message saying why.
Is the audio kept?
Yes. AAC audio is copied unchanged; other audio formats are converted to AAC for compatibility.
Is there a size limit?
Each video can be up to 1 GB. Files are read from disk in pieces, so they don't need to fit in memory, but very long videos take longer on slower devices.