Repair a corrupted AAC file that won't open.
Upload an AAC file that won't open or play. AAC is accepted for analysis; if the current repair engine cannot rebuild it, we tell you before checkout and you pay nothing.
Upload your audio fileFree preview before you pay
Your files auto-delete within 48 hours
No person watches your video as part of repair
Failure-mode explanation
AAC is the audio codec behind most streamed and recorded sound — it shows up as raw `.aac` streams and inside `.m4a` containers. Most "corrupted AAC" problems are damage to the framing or container structure the decoder needs to line up the audio, not to the sound itself. That structure breaks after an interrupted transfer, a truncated download, or an app that stopped writing early.
FileFix accepts AAC files and analyzes what is recoverable, but the current repair engine does not yet rebuild every AAC failure mode. If it cannot produce a playable result, you see that before checkout and pay nothing.
It also cannot recover audio that was never recorded.
Can / can't honesty block
We can usually fix
- AAC files are accepted for analysis, with the result shown before checkout.
We can't fix
How it works
- Upload rebuild
- Free preview pay $8 and download.
About half of real-world corrupted files repair fully; you preview before you pay.
Upload your audio file
Free preview · pay only if it worked · files auto-delete within 48 hours
Related fixes
Questions
Is there a file-size limit?
Uploads use one automatic flow for supported audio up to 2 GB. If a file is too large, we tell you before repair starts.
Is it private?
Yes — encrypted upload, automatic processing, auto-deleted within 48 hours.
What if it doesn't work?
No preview, no charge.