MOV to MP4 Converter
Convert MOV video to MP4 without uploading it. In most cases the video is copied rather than re-encoded, so it takes seconds and the quality is untouched.
- 100% private
- No sign-up
- No watermark
- Unlimited files
On the default setting this usually finishes in seconds, because the picture and sound are copied across unchanged rather than re-encoded. Everything runs on your own device — the file is never uploaded.
Usually there is nothing to convert
This surprises people: a MOV and an MP4 very often contain exactly the same thing. Both are containers — wrappers holding a video stream and an audio stream — and an iPhone recording is typically H.264 or HEVC video with AAC audio either way. MOV is simply Apple’s wrapper, and MP4 was derived from it.
So when the contents are already MP4-compatible, the file does not need re-encoding. The streams are copied into a new container untouched, which takes seconds even for a large file and loses nothing at all. This tool tries that first and only re-encodes if the streams genuinely cannot go into an MP4 as they are.
Why bother converting at all
MOV plays perfectly on Apple devices and unevenly everywhere else. Windows Media Player, older Android phones, plenty of TVs, editing software on other platforms, and a great many upload forms want MP4 and will not take MOV.
MP4 is the closest thing video has to a universal format. Converting is less about quality than about the file being accepted by whatever you are sending it to.
When it takes longer
A few sources cannot be copied straight across. Screen recordings and professional cameras sometimes use ProRes or uncompressed audio, neither of which belongs in an MP4. In that case the tool re-encodes, which is minutes rather than seconds and does cost a little quality.
You will see which path was taken next to the finished file, so it is never a guess. If you would rather force a re-encode — to shrink the file, for instance — the quality dropdown does that.
Working on a phone
The copy path is light enough that phones handle it comfortably, even for long recordings, because almost no processing is involved. That is the main reason it is worth trying first.
A full re-encode is a different matter. Browsers cap how much memory a tab may use, and on a phone the limit is low enough that a long video can hit it — the tab reloads rather than showing an error. For anything over a few hundred megabytes that needs re-encoding, use a computer.
Frequently asked questions
Are my files uploaded to a server?
No. The conversion runs inside your browser using your device's own processor. Your files are never transmitted anywhere, which is why the tool works even if you disconnect from the internet after the page loads.
Why is it so much faster than other converters?
Because in most cases it does not re-encode anything. The two formats commonly hold identical video and audio, so the streams are copied into the new container as they are. Sites that upload your file re-encode everything by default, which is slower and loses quality.
Will the quality drop?
Not on the default setting, in the normal case — copying streams into a new container is lossless. Quality only changes if your file needs re-encoding, or if you choose one of the re-encode options yourself.
Is there a file size limit?
No fixed limit. Your device does the work, so the ceiling is its memory. Copying is very light on memory; re-encoding is not.
Does this work with iPhone HEVC video?
Yes. HEVC (also called H.265) is valid inside an MP4, so those files copy across without re-encoding just as H.264 does.
Is there a file limit or a paywall?
There is no account, no watermark, and no upload cap. Because your device does the work, the only practical limit is your available memory. The site is funded by ads, not subscriptions.
Further reading
- MP4 vs MOV vs MKV8 min read
- What audio bitrate should you use?7 min read
- Are online file converters safe?7 min read