MOV to MP4 in seconds — stream copy means no re-encoding, no quality loss.
Best experience on desktop Chrome or Edge. Some features may be limited on mobile browsers.
Drag & drop your MOV, AVI, MKV, WebM, or MP4 video file. Processing happens in your browser — nothing is uploaded.
Select output format (MP4 or WebM) and quality. The tool auto-detects your input format and suggests the best output.
Hit "Start Conversion" — stream copy finishes in seconds. Compare file sizes and download your converted video.
Stream copy changes only the container (file wrapper) without re-encoding video or audio data. Zero quality loss, conversion in seconds — like moving a DVD from one case to another.
The most common conversion — make iPhone videos playable on Windows/Android. Finishes in seconds with stream copy.
Make downloaded videos playable on Smart TVs/iPhones. WebM to MP4 is also useful for converting screen recorder output.
Some codecs (e.g., VP9) may require re-encoding instead of stream copy. The tool automatically switches to re-encode mode when needed.
MOV is developed by Apple and works best on Mac. MP4 is more widely compatible and plays on virtually all devices and platforms. MP4 is recommended for social media uploads.
With "High Quality" setting, quality loss is barely noticeable. "Balanced" maintains good quality while reducing file size. "Small File Size" has some quality reduction but is sufficient for social media.
We use stream copy whenever possible. Since only the container changes without re-encoding video data, even a 1GB file can be converted in seconds.
No. All processing happens entirely in your browser using WebAssembly technology. Your video data never leaves your device, ensuring complete privacy.
Yes, it's completely free. No account registration required, and there are no usage limits.