01 / Drop
Choose your .mov
Drag a screen recording or any .mov, .mp4, .webm or .mkv file into the box, or click it to browse.
Free tool
Mac screen recordings are saved as .mov files. Drop one here and get an MP4 that plays almost anywhere. The file is converted in your browser, so it is never uploaded, and when the picture and sound can be copied as they are, there is no quality loss.
This runs in your browser. Your files are never uploaded.
How it works
01 / Drop
Drag a screen recording or any .mov, .mp4, .webm or .mkv file into the box, or click it to browse.
02 / Convert
The picture and sound are copied into an MP4 as they are when that is possible. If they cannot be copied, the tool re-encodes them.
03 / Save
Play the result in the page, then download it. The name stays the same with .mp4 at the end.
Questions
No. The conversion runs in this tab with your browser. The file never leaves your Mac, so it also works for private or client recordings.
Not when the picture and sound can be copied as they are, which is the usual case for Mac screen recordings. The result says which one happened. If the file has to be re-encoded, there is a small loss, as with any re-encode.
The Screenshot app and QuickTime Player save screen recordings as .mov files, as Apple's Support page says. MP4 is the same kind of container and is accepted by more websites and players.
The file is handled in your browser's memory, so very large files, over about 2 GB, can fail. Close other tabs and try again, or trim the video first with the video trimmer.
Most will. If the recording uses HEVC (H.265), which the Screenshot app can use when you choose HDR, the MP4 holds HEVC too, and a few older players cannot open it.
Copying works in current Chrome, Edge, Safari and Firefox. Re-encoding needs WebCodecs, which current Chrome, Edge and Safari have.