MP4 to MOV
Convert MP4 to MOV in your browser. Nothing is uploaded.
Runs in this tab. The file stays here.
This runs in your browser. Nothing is uploaded. Longer clips take longer here than they would on a fast server — that is the trade-off for not sending the file.
Format hubs: MP4 · MOV · Convert
About MP4 to MOV
Converts MP4 to MOV in your browser. H.264 video in the container phones and sites expect. Output is MOV. Nothing is uploaded.
MP4 is h.264 video in the container phones and sites expect. MOV is quickTime container, often off a camera or an iPhone. This page is only that pair. It is not a generic dump box that guesses the destination after an upload. If you have a different container, use that format's hub instead of forcing the file through the wrong decoder.
The clip is read into memory and converted with FFmpeg compiled to WebAssembly, loaded from this origin once (~30 MB) and then cached. You can open the network tab first: you should see this origin load, and on the first video or audio visit a local ffmpeg-core.wasm, not a POST of the file. After the page (and encoder, if this is media) has loaded, wifi can go off. That is the whole product, not a badge.
MOV is a lossy target, and the source is already compressed once. Re-encoding throws away some detail. I will not call the result identical to the source. If you need a lossless container, this is the wrong pair — pick PNG or FLAC or WAV where those exist. Quality sliders on stills are honest: lower means more of the picture is discarded.
Related conversions sit on this same origin. MP4 to another destination, or another source into MOV, are separate pages so the titles stay specific. The MP4 hub and the MOV hub list every pair I actually ship. Missing pairs are missing because the encoder or decoder is not here — not because they are paid.
Start from the MP4 hub if you are leaving this format, or the MOV hub if you need to arrive in it. Those pages are indexes, not upload forms. A generic dropdown still exists under Video convert and Audio convert when you would rather pick the destination after you drop the file. Stills use jSquash or canvas; clips and recordings share the same FFmpeg core as the rest of the media tools. You can disconnect after that core has loaded.
How to use MP4 to MOV
- 1Drop a MP4 file. The in-browser encoder loads from this site the first time you open a video or audio tool.
- 2Click Convert. Encoding a long clip can take a while on a phone; that wait is local CPU, not an upload bar.
- 3Download the MOV result. It was never on my disk.
What it won't do
- Input is MP4 (video/mp4,.mp4,.m4v). A different container belongs on its own pair.
- The encoder is GPL FFmpeg in WebAssembly, single-thread, from this origin. Exotic codecs inside a familiar extension can still fail.
Common questions
Does converting MP4 to MOV upload the file?
No. This is a static page. The clip stays in the tab. The network panel should show this origin, not a POST of your MP4 file.
Will MP4 to MOV look or sound the same?
Close, if you keep quality high, not identical. MOV compresses. A second generation on top of MP4 is a real cost. If the result looks chewed, raise quality or pick a lossless pair.
Why is there a separate MP4 to MOV page instead of one converter?
Searchers type this pair. A generic convert tool with a dropdown is easy to build and easy to bury. Each pair is its own URL, its own title, and a file picker that expects MP4. The generic pickers still live at video convert and audio convert if you want a dropdown.
Can I convert MOV back to MP4 on this site?
Yes — that is /convert/mov-to-mp4. Going back and forth through a lossy codec twice is how you make mud. Do it once if you must.
Related tools
Why this one doesn't upload your file
There is no server to upload to. This page is a static file, and the work happens in your browser using the same graphics and WebAssembly code that renders every other site you visit. Your file is read from disk into memory, processed, and handed back as a download. Once the page has loaded you can disconnect from the network entirely and it keeps working. The longer explanation