MP4 ↔ MOV converter
Your iPhone exports MOV but the other player only takes MP4, or your editor is picky about containers — yet often the video codec inside (H.264) is the same and only the wrapper (container) differs. ConvertMeow just swaps the wrapper: it stream-copies the video/audio streams into the other container without re-encoding, so it's near-instant with zero quality loss. The file is processed locally in your browser and never uploaded.
Your iPhone exports MOV but the other player only takes MP4, or your editor is picky about containers — yet often the video codec inside (H.
Target container
Container swap only, no re-encode — quality unchanged, near-instant.
How to use mp4 ↔ mov
- 1Drop in or select an MP4 or MOV file.
- 2Choose the target container (MP4 ↔ MOV).
- 3Click Convert. ConvertMeow uses -c copy stream copy to re-wrap without re-encoding.
- 4Download the result. Near-instant, quality unchanged.
Why use ConvertMeow's MP4 ↔ MOV?
- Re-wrap, not recompress: the video/audio streams are copied verbatim, so quality is bit-identical — there's no "loses a bit each time".
- Near-instant: skipping encoding means even a few-hundred-MB file finishes in seconds; it's a container change, not a transcode.
- Local: the file never goes to a server, so private videos stay private even when you change format.
Frequently asked questions
No. This is stream copy (-c copy) — the video and audio data are moved verbatim into the new container with no re-encode, so quality is identical. It changes the file's wrapper, not its content.
If the source MOV uses a codec the MP4 container doesn't support (like ProRes or certain Apple-only codecs), a plain re-wrap will fail to play — that case needs a real re-encode. If a result won't open, use the video compressor to re-encode it to standard H.264 MP4.
Updated · ConvertMeow team