MOV is Apple’s QuickTime format — the default on iPhones and older Mac apps. The problem: MOV doesn’t play natively on Windows or Android, and many editors and platforms prefer MP4. Converting is simple, and at the right settings, it’s completely lossless.
Method 1: AllMediaTools Video Converter (Online, No Install)
- Open AllMediaTools Video Converter.
- Upload your MOV file.
- Select MP4 as output format.
- Choose quality (keep original for best results).
- Click Convert and download.
Method 2: FFmpeg (Lossless Remux — Zero Quality Loss)
# Remux without re-encoding (fastest, zero quality loss)
ffmpeg -i input.mov -c copy output.mp4
# With H.264 re-encoding (for maximum compatibility)
ffmpeg -i input.mov -c:v libx264 -c:a aac output.mp4
# Batch convert all MOV files in folder
for f in *.mov; do ffmpeg -i "$f" -c copy "${f%.mov}.mp4"; doneThe -c copy flag remuxes without re-encoding — the video data moves to a new container with zero quality loss.
Method 3: VLC Media Player (Free Desktop)
Open VLC → Media → Convert/Save → Add MOV → Convert/Save → Profile: Video – H.264 + MP3 (MP4) → set destination .mp4 → Start.
After Converting: Reduce File Size
iPhone 4K MOV files can be 1GB per minute. After converting to MP4, use AllMediaTools Video Compressor to reduce file size for sharing without visible quality loss.
Frequently Asked Questions
Does converting MOV to MP4 lose quality?
Using -c copy in FFmpeg: zero quality loss — it’s a container change, not a re-encode. With re-encoding tools at high quality settings, the loss is imperceptible.
Why do iPhones record in MOV?
For QuickTime compatibility. You can change this: Settings → Camera → Formats → Most Compatible records in H.264 MP4 instead.
My file is too large for the online converter — what do I do?
Use FFmpeg or VLC — both have no file size limits and are completely free.