MOV to MP4 converter
iPhone and QuickTime recordings save as MOV — repackage them into an MP4 that plays everywhere, with the streams copied instead of re-encoded so it's instant and lossless. Everything runs in your browser; the file never leaves your device.
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MOV is Apple's QuickTime container format — the default for anything recorded on an iPhone, iPad, or Mac, including Photos videos, QuickTime screen recordings, and exports from iMovie or Final Cut. MP4 is the near-universal container that browsers, editors, social platforms, and Android phones all read without complaint. In most cases the two hold the exact same video and audio codecs inside (commonly H.264 or HEVC with AAC), so switching a file from .mov to .mp4 is a container swap, not a rebuild of the footage.
That distinction is why remuxing is the right approach: instead of decoding and re-encoding every frame, this tool copies the existing streams straight into a fresh MP4 wrapper. The result is near-instant even on long clips and completely lossless, unlike a typical "convert MOV to MP4" step that quietly re-compresses and softens the picture. Reach for it whenever a MOV won't upload, won't preview as a thumbnail, or gets rejected by an editor or web tool that only accepts MP4.
How it works
- 1
Drop the MOV file.
- 2
Click convert.
- 3
Download the MP4.
When to use it
- Drop an iPhone clip that saved as .mov and get an .mp4 that uploads cleanly to sites and forms that silently reject or mis-handle MOV files.
- Convert a macOS QuickTime screen recording — like a capture of your track playing back in Suno — into an MP4 before posting it to Discord or X, where MP4 gives more consistent inline playback and thumbnails.
- Turn a .mov exported from iMovie or DaVinci Resolve into a .mp4 so it imports into another editor or in-browser tool whose uploader only accepts MP4.
MOV (QuickTime) vs MP4
| MOV (QuickTime) | MP4 | |
|---|---|---|
| Lossless | No | No |
| Typical size | Efficient | Efficient (H.264/AAC) |
| Best for | Apple & editing workflows | YouTube & universal video |
| Compatibility | Apple, most editors | Practically everything |
FAQ
Is the video re-encoded?
No — the H.264/AAC streams are copied straight into an MP4 container, so it's near-instant with zero quality loss. It swaps the wrapper, not the picture.
Will every MOV convert?
Only when its streams are MP4-compatible. iPhone and most QuickTime MOVs hold H.264 or HEVC video, which remux cleanly; a MOV containing ProRes or another codec MP4 can't store would need re-encoding instead.
Does converting MOV to MP4 make the file smaller?
No. Remuxing copies the same video and audio streams into a new container, so the MP4 comes out roughly the same size as the MOV, give or take minor container overhead. If you actually need a smaller file, that requires re-encoding at a lower bitrate — the video compressor tool does that.
MOV vs MP4 — is one better quality than the other?
Neither is inherently higher quality; both are just containers wrapping the real video and audio codecs. An H.264 stream looks identical whether it sits inside a .mov or a .mp4, which is exactly why swapping the container here changes nothing about the image.
Can I convert MOV to MP4 on my iPhone without installing an app?
Yes. The converter runs entirely in your browser, so it works on iOS, Android, and desktop with nothing to install and no sign-up. Very large files are limited only by your device's available memory, since everything is processed locally rather than uploaded.
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Pull the audio track out of an MP4, MOV, or WebM as an MP3 — in your browser, nothing uploaded.