Free Online Tool

MOV to MP4 Converter

Convert MOV videos to universally-playable MP4, right in your browser. Nothing is uploaded.

Drop your video here

or click to browse your files

Supports MP4, MOV, WebM, MKV — processed entirely on your device

MOV is the video format QuickTime and iPhones record in by default. It plays fine on Apple devices but often refuses to open, upload, or preview correctly on Windows PCs, Android phones, and many websites and apps that only expect MP4.

This tool re-encodes a MOV file into standard MP4 (H.264 video, AAC audio) — the most universally compatible video format, playable on virtually every device, browser, and platform. Conversion runs entirely in your browser via a WebAssembly build of FFmpeg; the file never leaves your device.

Because it's a full re-encode rather than a simple file rename, this also fixes MOV files that show up sideways or won't play at all in some non-Apple software — a common annoyance with iPhone video.

Step-by-step instructions

  1. 1

    Upload your MOV file

    Click the upload area or drag a .mov file (from an iPhone, iPad, or Mac) directly onto it.

  2. 2

    Wait for conversion

    The video is converted locally in your browser — a progress bar shows how far along it is.

  3. 3

    Preview and download

    Once finished, play the result inline to check it, then download it as an .mp4 file.

Common use cases

Sharing iPhone videos with Android/Windows users

MP4 opens reliably everywhere MOV sometimes doesn't.

Uploading to websites and apps

Many upload forms and video editors only accept MP4, not MOV.

Fixing playback issues

Some MOV files won't play at all in non-Apple media players — converting to MP4 usually resolves this.

Tips for best results

  • If the video also needs to be smaller in file size (not just a different format), run it through the Video Compressor afterward.
  • Very long or high-resolution MOV files take longer to convert since everything runs on your device's own processor.

Frequently asked questions

Does this tool upload my video anywhere?

No — conversion runs entirely in your browser using WebAssembly; the video file never leaves your device.

Will I lose quality?

The conversion uses a high-quality setting (CRF 20), so quality loss is minimal and not noticeable in normal viewing.

Does audio carry over?

Yes, audio is converted to AAC and included in the output MP4.

Is there a file size limit?

No hard limit, but very large files (250MB+) can be slow on mobile devices — a desktop browser handles large files more reliably.