Convert MOV to MP4
Convert MOV videos from your iPhone, iPad, or Mac to MP4 format instantly in your browser. MP4 plays everywhere — no compatibility issues. No upload needed, 100% private.
Drag 'n' drop files here, or
click to select files
.mov
Drop your files and click Convert to get MP4
//when_to_use
When to Convert MOV to MP4
- Sharing iPhone or Mac videos on Android devices and Windows PCs without compatibility issues
- Uploading videos to social media platforms (Instagram, TikTok, LinkedIn) that prefer MP4
- Embedding videos in websites and email newsletters where MP4 is the standard format
- Sending video files to clients or colleagues who use non-Apple devices
- Preparing screen recordings from QuickTime Player for use in presentations or tutorials
//comparison
MOV vs MP4
| Property | MOV | MP4 |
|---|---|---|
| Container | QuickTime (.mov) | MPEG-4 (.mp4) |
| Video codec | H.264 or HEVC | H.264 (re-encoded) |
| Audio codec | AAC / PCM | AAC |
| Platform support | Apple-native, limited elsewhere | Universal |
| Web streaming | Limited | Optimized (faststart) |
| File size | Varies | Similar or smaller |
//how_it_works
How It Works
Drop your MOV video
Drag and drop or select a MOV file from your iPhone, iPad, or Mac. First use loads the FFmpeg engine (~30MB), then it stays cached.
FFmpeg analyzes the container
FFmpeg WASM reads the QuickTime container and identifies the video (H.264/HEVC) and audio (AAC/PCM) streams inside.
Re-encode to MP4 (H.264 + AAC)
Video is re-encoded using libx264, audio as AAC. The +faststart flag optimizes the file for web streaming by moving metadata to the front.
Download universal MP4
Your MP4 plays on every device — Android, Windows, browsers, social media. No more 'format not supported' errors.
// under the hood
MOV is Apple's QuickTime container, often using H.264 or HEVC video with AAC audio. Our converter uses FFmpeg WASM to re-mux or re-encode into an MP4 container with H.264 video (libx264) and AAC audio. The -movflags +faststart flag is applied to move the moov atom to the beginning of the file, enabling progressive playback on the web.
//faq
Frequently Asked Questions
- Why convert MOV to MP4?
- MOV is Apple's video format and can have compatibility issues on Windows, Android, and many websites. MP4 is the universal standard — it plays on virtually every device, browser, and platform without issues.
- Does converting MOV to MP4 lose quality?
- The conversion re-encodes using H.264 video and AAC audio — the most widely supported codecs. Quality is preserved at a high level. For most use cases, the difference from the original is imperceptible.
- How long does conversion take?
- Conversion time depends on the video length and your device's processing power. A 1-minute video typically converts in 10-30 seconds. Since everything runs in your browser via WebAssembly, faster devices will see faster results.
- What's the maximum file size?
- There's no hard limit, but since conversion happens in your browser, we recommend files under 500MB for the best experience. Very large files may cause slower performance or require more device memory.
- Is it safe to convert files here?
- Yes. Your video files are processed entirely on your device. Nothing is uploaded to any server. We use FFmpeg compiled to WebAssembly, which runs locally in your browser with zero network access to your files.