MP4 to MOV Converter

Convert MP4 to MOV with browser-local media codecs and no uploads.

How to use

1. Select a supported MP4 file. The converter analyzes its media tracks locally.
2. Press Convert, and download the output. If this browser cannot decode or encode the source codec, an explanatory error will appear.

About these formats

Media containers and codecs differ. Re-encoding can alter audio/video quality or file size, but conversion remains entirely on your device.

Browser limitations

Requires a supported media decoder and encoder in your browser. Maximum 120 MiB input and 400 MiB output. DRM, unsupported streams and uncommon profiles are not supported. Browser and device compatibility varies.

Frequently asked questions

Can I convert without uploading?

Yes. The WebCodecs and local WASM codecs process selected files entirely in browser memory.

Does this retain all metadata?

No. Media transcoding may omit subtitles, chapters, metadata or alternate tracks.

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