Video Repair
Rebuild a video whose container was damaged by an interrupted recording.
Free video repair: fix an MP4, MOV or MKV that will not seek, shows the wrong length or stutters, by rebuilding its container. Nothing is uploaded.
What Video Repair is for
For a file that will not open because the recording stopped badly: a phone that ran out of battery, a screen capture that crashed, a transfer that was interrupted. The data is usually intact; the index describing it is not.
Worth knowing
An interrupted recording usually has good streams inside a broken box. Copying them into a fresh container rebuilds the index without re-encoding.
How to use it
- Add your files. Drop them on the page or choose them. They stay on your device.
- Set the output format and quality. The defaults suit most files.
- Press convert and save the results, individually or as one ZIP.
Questions
Why will my video not play?
Most often the container index is missing. It is written when a recording is closed properly, so an interrupted recording leaves the frames present but nothing describing where they are. Rebuilding that index fixes it.
Can any broken video be repaired?
No. If the frames themselves are missing or overwritten there is nothing to recover. This fixes damaged structure, not missing data, and it will say plainly when it cannot.
Will repairing lose quality?
The first attempt copies the streams untouched, so nothing is lost. Only if that fails does it re-encode, which costs a little but recovers files the copy could not.
My video plays but cannot be seeked. Is that the same problem?
Yes, a milder version. Browser screen recordings often have no duration in the header, so players show zero seconds and refuse to scrub. Rebuilding the container fixes the seeking.