How do I convert a MOV video to MP4?
To convert MOV to MP4, open FixDoks's MOV to MP4 tool, select the .mov file up to 200MB, then click Convert to MP4. If the video already uses H.264, the tool copies it into an MP4 box instantly with no quality loss; HEVC or ProRes video is re-encoded instead. Everything runs in your browser, so the file is never uploaded.
MOV to MP4 at a glance
| Input | MOV (H.264, HEVC or ProRes), up to 200 MB |
|---|---|
| Output | MP4 (H.264 + AAC) |
| Processing | In your browser; your files are not uploaded |
| Price | Free, no watermark |
| Download | Free Google sign-in |
| Works on | Chrome, Edge, Safari and Firefox on Windows, Mac, Android and iPhone |
How to use MOV to MP4
- Click Select video and choose a .mov file up to 200 MB.
- Leave quality on Balanced (it is only used if the video needs re-encoding).
- Click Convert to MP4 and download.
MOV and MP4: same family, different label
MOV is Apple's QuickTime container. MP4 is the international standard that grew out of it. Both are just boxes that hold video and audio streams. The stream inside is what really matters, and that is why converting MOV to MP4 is often instant.
Two cases, handled automatically
H.264 inside the MOV. Screen recordings from macOS, videos from older iPhones and many camera and editing app exports store H.264 video in a MOV box. FixDoks detects this and simply copies the video into an MP4 box without touching a single frame. It takes seconds, even for large files, and the quality is identical to the original. If the audio is AAC it is copied too; other audio formats are converted to AAC.
HEVC (H.265) or ProRes inside the MOV. Recent iPhones record in HEVC by default under the "High Efficiency" camera setting, and professional cameras may use ProRes. These play fine on Apple devices but often fail on Windows PCs, Android phones, smart TVs and upload forms. In this case the tool re-encodes the video to H.264 so it plays everywhere. That takes longer and uses the quality setting you pick.
Why convert at all?
- Windows and Android apps sometimes show a black screen or "unsupported format" for MOV files.
- Many websites, job portals and learning platforms accept only .mp4 uploads.
- Some editors and presentation tools import MP4 more reliably.
- Sharing an MP4 avoids "I can't open it" replies from friends on other platforms.
Tips for iPhone users
If you often need MP4, you can set your iPhone camera to Most Compatible (Settings, Camera, Formats). Videos are then recorded in H.264, and conversion here will always be the instant, lossless kind. Note that H.264 files are larger than HEVC for the same quality, so if storage is tight you may prefer to keep High Efficiency and convert only when you need to.
After converting, if the file is too big to send, use Compress Video to shrink it or Trim Video to keep only the part you need.
Your videos stay on your phone or computer
The conversion runs inside your browser. Nothing is uploaded, so personal and family videos never leave your device.
How to tell which kind of MOV you have
You do not need to check: the tool detects it. The status line after conversion tells you whether the video was copied (instant, identical quality) or re-encoded. As a rule of thumb, iPhone camera videos from the last several years are HEVC, while macOS screen recordings and QuickTime exports are usually H.264.