Convert iPhone MOV Video to MP4, Free and Private

Convert MOV video from an iPhone or camera to universally-playable MP4, in your browser.

Universal File Converter: Private & Fast

Convert images, videos, audio, and documents directly in your browser. Your files never leave your device, ensuring 100% privacy and security.

Video & Audio Converter

Extract audio from video or convert audio files between popular formats.

Drop your file here, or browse

Maximum file size: 50 MB

Supported: MP4, MOV, AVI, WEBM, MKV, MP3, WAV, FLAC, M4A, OGG

Output format

Advanced Media Tools

Extract Audio Trim Video

100% In-Browser Processing

Your files are processed strictly in local device memory. Nothing is uploaded — see how, and check for yourself.

How It Works

How to convert files with DuckConvert

Select Your File

Choose the file you want to convert from your device or drag and drop it into the converter.

Choose Output Format

Select your desired output format and any specific settings for your conversion.

Convert & Download

Click "Start Conversion" and wait for the local process to finish, then download your new file.

Don't take our word for it

This conversion runs entirely in your browser — nothing is uploaded. See exactly how, and check for yourself using your browser's DevTools Network tab.

How It Works

Conversion Mechanics

MOV is Apple's native video container — the default when you record on an iPhone or export from Final Cut — but a lot of non-Apple software, older Android phones, and Windows tools either mishandle it or refuse to open it at all. Converting to MP4 fixes that near-universally, since virtually every platform, phone, and video site accepts MP4 uploads.

Why It's Private

Runs Entirely In Your Browser: Files are decoded and re-encoded strictly in local memory.
No Network Requests: The converter makes no calls to any server — check your browser's DevTools Network tab to confirm.
Nothing to Sign Up For: No account, no upload, and no server-side storage of your files.
Runs On Your Hardware: Processing uses your own device's CPU via Web Workers, not a remote server.

Step-by-Step MOV to MP4 Local Guide

Select File

Drop your .mov file into the box above.

Configure

Confirm MP4 is selected as the output format.

Convert

Click Convert — transcoding runs locally using an in-browser FFmpeg build.

Save Result

Download the resulting .mp4 file.

Frequently Asked Questions on Secure MOV to MP4 Conversion

iPhones record video in the MOV container by default, and some non-Apple software and older devices either can't open it or don't play its audio/video codecs correctly.

There's some re-encoding involved, but at reasonable settings the visual difference is generally not noticeable for typical viewing.

It can go either way depending on the original MOV's encoding settings — MP4 with modern codecs is often similar or smaller.