MOV to MP4
Convert MOV videos to MP4 directly in your browser. Compatible files convert quickly, while other videos are re-encoded to H.264 and AAC.
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Conversion runs locally in your browser with FFmpeg.wasm. The first use may download about 30 MB of processing files. Compatible H.264/AAC MOV videos are remuxed for faster conversion.
Frequently Asked Questions
Are my videos uploaded to a server?
No. MOV to MP4 conversion runs locally in your browser, so your video files stay on your device and are not uploaded to a server.
What is the difference between remuxing and re-encoding?
Remuxing moves compatible video and audio streams into a new MP4 container without changing their quality, so it is usually faster. Re-encoding converts the video or audio codec when needed, which takes longer and may slightly affect quality.
What is the maximum MOV file size I can convert?
MOV files over 1 GB may display a warning, while files of 2 GB or larger are not accepted because browser memory may not handle very large files reliably.
Does converting MOV to MP4 reduce video quality?
Not always. If your MOV file already uses compatible H.264 video and AAC audio, it can be remuxed without quality loss. Files that require re-encoding may have a small reduction in quality depending on the conversion process.
What is the difference between MOV and MP4?
MOV and MP4 are both video container formats. MOV is commonly associated with Apple QuickTime, while MP4 is generally more widely supported across browsers, phones, TVs, media players, and online platforms.