MOV to MP4

Re-encode a QuickTime MOV file (typically straight from an iPhone or Mac) into a universally playable MP4 with H.264 video and AAC audio. MOV and MP4 are closely related, but plenty of editors, web players, and Android devices prefer MP4. The conversion runs locally via ffmpeg.wasm — your file never leaves your browser. Performance depends on your CPU: expect roughly real-time encoding for short clips (a 5-minute 720p video may take 1–2 minutes). Very large files or 4K sources may be slow or run out of memory — for best results keep inputs under about 500 MB.