Free repair in your browser.
No upload. No signup. No subscription.
Fix corrupted MP4 & MOV videos caused by recording crashes, camera power loss, or drone crashes — right on your device. Your files never leave your machine.
If a recording is cut off, the file usually loses its index (the part that tells a player how the video is laid out) while the footage itself is still there. FixFile rebuilds that index locally, then shows you a free preview before you decide whether to pay.
How it works
Three steps. No account. Nothing is sent to a server.
Drop your file
Add the corrupted video. Optionally add a healthy clip from the same camera as a reference.
Repair locally
We rebuild the video's index and container in your browser — nothing is sent anywhere. Fully offline.
Preview, then decide
See a free low-res preview. Only pay $4.99 to download the full HD file — if it actually works.
Built for the moments that matter
The files people can't re-record.
🎥 Action cams
GoPro / DJI footage cut off when the battery died or the record button jammed.
🚁 Drone crashes
"Flyaway" or crash mid-record leaves an unreadable MOV.
📹 OBS & streaming
A crash during a live recording produces a 0-byte or headless file. See OBS MP4 won't open.
🚗 Dashcams
Loop recording corruption; evidence you can't afford to lose.
💒 Weddings & events
Once-in-a-lifetime footage that must be recovered.
📱 Phone transfers
Clips that won't open after a failed copy or interrupted save.
moov atom) — the most common cause of "file won't open." It cannot reconstruct media that was never written to disk (for example, a file that is truly 0 bytes). See the guide for what works and what doesn't, or the "moov atom not found" explainer.
Troubleshooting guides
Specific errors, specific answers.
"moov atom not found"
What that error actually means, how to confirm it, and which files can realistically be rebuilt.
OBS MP4 won't open
Recover a recording killed by an OBS crash — plus the format setting that prevents it next time.
Preparing a reference clip
Exactly what has to match for a repair to succeed, and how to record one on any device.
Frequently asked
Do my videos get uploaded?
No. All processing happens in your browser. We never receive your files. See our Privacy Policy.
What if the repair doesn't work?
You only pay $4.99 after confirming the free preview shows your footage. No recovery, no charge.
Why do I need a "reference file"?
When a recording is interrupted, the index (moov atom) is never written. A healthy clip from the same camera tells us how to rebuild it. Without one, we try to recover what we can.
Does it work without internet?
Yes — once the page has loaded, repair runs fully offline. The only thing needing a connection is the optional payment step.
Ready to recover your footage?
Repair for free, preview the result, and pay only once — a one-time $4.99 for the HD download. No subscription.
Start free repair →