Convert MOV to MP4 — straight from your iPhone, no upload

iPhone and Mac videos save as MOV, which Windows and Android often can't play. OpenConvertVideo converts it to MP4 right in your browser — often using your device's built-in encoder — with no account and no size limit.

Drop a file here, or click to choose

Converts right here — nothing uploads

Need trim, resize, or quality controls? Open the full converter →
  • No upload wait
  • Nothing leaves your device
  • Free, no account
  • No artificial size limits

Why convert MOV to MP4?

MOV is Apple's QuickTime container. It plays natively on Mac and iPhone but is not reliably supported on Windows, Android, or web browsers. Windows users without QuickTime installed often see a blank player or a codec error.

MP4 (H.264) is the universal standard. Converting once means the file plays anywhere — Windows, Android, smart TVs, and every web browser — without the recipient needing to install anything.

iPhone and iPad recordings

iPhones record in HEVC (H.265) inside a .mov container. The video looks great but Windows PCs often can't play it without installing the HEVC Video Extension from the Microsoft Store.

Converting to MP4 H.264 solves this instantly. At the Balanced preset, the output is typically a similar file size to the original and visually indistinguishable for most content.

iPhone Pro HDR footage

iPhone 12 Pro and later record in Dolby Vision HDR by default. These files look washed out on standard displays unless tone-mapped to standard dynamic range (SDR).

OpenConvertVideo automatically detects HDR colour information and applies tone mapping during conversion, so the output looks correct on any display — no manual colour settings needed.

Want smaller files? Try H.265 output.

If your recipient has a modern device (any Apple device, recent Android, or Windows with the HEVC extension), converting MOV to H.265 MP4 instead of H.264 gives the same visual quality at roughly half the file size. Useful for long recordings where storage matters.

Will I lose quality?

Any re-encoding involves some quality loss. Using the High preset keeps this imperceptible. For most sharing purposes — social media, messaging apps, email — Balanced is indistinguishable from the original.

How it works

There's no upload step — conversion starts the moment you choose your MOV file. Since iPhones record in H.264 or H.265, conversion can use your browser's built-in encoder, which is usually hardware-accelerated, so it's often fast. Everything happens locally on your own device — we only supply the ffmpeg code, not the processing power — so there's no file size limit and no privacy trade-off; you can confirm that yourself in your browser's Network tab. Your iPhone footage stays 100% private, as it should.

Frequently asked questions

Will the audio be preserved?
Yes. Audio is re-encoded to AAC automatically. Stereo and surround tracks are both supported — surround is downmixed to stereo in the MP4 output.
Does it handle MOV files shot in 4K?
Yes. There is no file size or resolution limit. Note that converting 4K footage is CPU-intensive — expect a few minutes per minute of footage on a typical laptop. Reducing to 1080p first dramatically speeds things up.
How long does the conversion take?
Often under a minute for a typical clip. iPhone video is H.264 or H.265, so conversion can use your browser's built-in encoder, which is usually hardware-accelerated. 4K footage takes longer — expect a couple of minutes per minute of video — and there's no upload wait added on top either way.
Can I resize the video while converting?
Yes. Choose from 1080p, 720p, or 480p presets, or enter a custom width. Aspect ratio is locked automatically.
My MOV file is from a professional camera, not an iPhone. Will it work?
Usually yes, as long as your browser can decode the video codec inside the MOV. ProRes (common in professional camera MOV files) is not browser-decodable and cannot be converted this way — you would need a desktop app for ProRes.

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