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MOV to MP4

Turn a QuickTime .mov or .qt file into a universally playable MP4. When the video is already in an MP4-friendly codec, the file is simply repackaged — instantly and with zero quality loss. Otherwise it is re-encoded to H.264. Everything runs in your browser; your video is never uploaded.

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Frequently asked questions

No. The conversion runs entirely in your browser with FFmpeg compiled to WebAssembly. Your video never leaves your device — no upload, no account, no watermark.

Usually not. MOV and MP4 are both containers, so when the video and audio codecs already work in MP4 (typical for iPhone and screen recordings) the streams are copied as-is — the result is identical in quality and takes only seconds.

'Fast' repackages the existing streams without touching them: instant and lossless. 'Re-encode to H.264' rebuilds the video, which is slower but makes HEVC, ProRes or Apple Animation files play everywhere, including older Windows and Android players.

Choose 'Re-encode to H.264'. HEVC (H.265) MOV files from recent iPhones often refuse to play on Windows and Android; H.264 MP4 is the most widely supported combination.

QuickTime .mov and .qt files, plus other common video containers such as MKV, AVI, WebM and M4V. The output is always an MP4 with faststart enabled for smooth web playback.