Why MOV files cause trouble
MOV is the container created by Apple for QuickTime. An iPhone records MOV files, and since the High Efficiency setting is common, many of them use HEVC (H.265) video. Some Windows computers, older players and web editors cannot decode HEVC, so you get no picture or no sound.
MP4 with H.264 video is the safest choice for sharing. It opens on practically every phone, TV and website, and most uploads accept it without complaint.
How to convert MOV to MP4
- Drop your MOV file on the page, or pick it from your files.
- In the Convert tab, choose MP4.
- Press Start. A progress bar shows the work.
- Preview the result and download the MP4.
Prevent the problem on your iPhone
If you often send clips to Windows users, open Settings, then Camera, then Formats, and choose Most Compatible. The phone then records H.264 and the files travel more easily, at the price of larger files.
For clips you already have, convert them here. If the result is too heavy for email or a chat app, run it through the Compress tool, which lets you lower the resolution or aim for a target size in megabytes.
Questions
Why does my MOV have no picture on Windows?
It is most likely HEVC video, which some Windows setups cannot play. Converting to MP4 with H.264 video solves it.
Can I convert iPhone videos here?
Yes. iPhone clips are usually MOV files, and they open in this tool like any other video.
Is there a file size limit?
There is no limit set by this site, but very large files depend on your computer memory. Files above about 1.6 GB may be too much for the in-browser converter.