Convert MOV to MP4
Convert iPhone or Mac MOV files to universally compatible MP4 (H.264 + AAC), without uploading them to any server.
Your files never leave your device
How to convert MOV to MP4
- 1
Upload the MOV
iPhone videos, QuickTime, Mac screen captures…
- 2
Convert
Re-encoded to H.264 + AAC with faststart.
- 3
Download
Plays on Windows, Android, web and TVs.
Why use this tool
Universal compatibility
H.264 + AAC in MP4: the standard everything plays.
Web-ready
faststart: playback starts before the full download.
Private
The file never leaves your device: ffmpeg runs in your browser.
Real engine
ffmpeg, the industry standard, compiled to WebAssembly and self-hosted.
Frequently asked questions
Why is it slower than other conversions?
The video is re-encoded frame by frame with H.264 in your browser (single thread). A 1-minute clip can take several minutes depending on your hardware.
Do I lose quality?
CRF 23 re-encoding is visually very close to the original; it is not a bit-exact copy.
Does it handle iPhone HEVC videos?
Yes, ffmpeg decodes HEVC and re-encodes to compatible H.264.
Is there a size limit?
The site-wide limit is 250 MB per file, and above 100 MB we warn it may be slow: everything is processed in your browser memory.