MOV to MP4 converter

Runs on your deviceFreeNo account

How to use MOV to MP4

Drop a .mov file and tap Convert to MP4. The first run downloads the FFmpeg engine (~31 MB, cached afterwards). Keep the tab open until it finishes, then download the MP4.

1

Add your file

Drag & drop, browse files, or press Ctrl+V to paste from the clipboard where supported.

2

Process in the browser

Work stays in this tab with WebAssembly, Canvas, or other on-device APIs — your file is not uploaded to Omnipus.

3

Download or share

Save the result to your device, or share it with the OS share sheet when available.

Direct share: Install Omnipus as an app on Android to share files and links into this tool from other apps.

About this tool

MOV is Apple’s QuickTime container; MP4 plays almost everywhere. If the MOV holds H.264 video, Omnipus copies it into an MP4 without re-encoding — fast and lossless. Many iPhones record HEVC (H.265) instead, which is re-encoded to H.264 on your device; that works but can take a while, especially on phones. Audio is copied when it is AAC and converted to AAC otherwise. Files up to about 100 MB, never uploaded.

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Frequently Asked Questions

Why is my iPhone video slow to convert?

Recent iPhones record HEVC by default. HEVC has to be re-encoded to H.264 for maximum compatibility, and WebAssembly encoding is slower than a native app.

Does converting MOV to MP4 lose quality?

Not when the video is H.264 — it is copied as-is. HEVC sources are re-encoded at good quality (CRF 23), which is lossy but usually hard to notice.

Is there a size limit?

About 100 MB per file, because the conversion runs in browser memory.

Is my video uploaded?

No. Conversion runs entirely in this tab.

Is MOV to MP4 completely free to use?

Yes. MOV to MP4 on Omnipus is free to use with no subscription paywall for the tool itself.

Are my files or data uploaded to any servers?

No. MOV to MP4 processes your input locally in this browser tab. Your files and text are not sent to Omnipus. Some tools download an engine or model file the first time you use them; that is a download, not an upload.

Does Omnipus add watermarks to exported files?

No. Omnipus does not stamp a site watermark onto files you export from MOV to MP4.

Can I use MOV to MP4 on my mobile phone?

Yes. Omnipus has touch-friendly controls and can be installed as an app. On Android you can also share files or links into tools from other apps.

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