Video repair tools
Fix corrupted MP4 and MOV videos in your browser: rebuilds the box structure and clamps truncated data. Free, no sign-up, videos never uploaded.
A video that “can’t be opened” usually still holds every frame — the index boxes that tell the player where things are got damaged instead. The MP4 repair tool walks the raw bytes, resynchronises at every box and rebuilds a self-consistent file, all inside your browser tab so the footage never leaves your device.
Every tool here is free and unlimited — Pro exists only for batch processing and oversized files.