Repair a corrupted PNG.
Recover the rows that survived.
Openable checks each PNG block and keeps the complete image rows.
Works with missing endings, failed file checks, interrupted image data, and supported size damage.Try the private recovery toolCheck files you care about, privately.
Chrome or Edge asks for read access before a folder scan. Openable does not upload the folder.
PNG stores its image in ordered blocks with built-in damage checks.
A PNG holds its image data, dimensions, and built-in damage checks in ordered blocks.
Openable checks each block and the decoded rows.
Rows that decode completely are kept in the recovery copy.
PNG damage Openable checks
Checksum and ending damage
Repair certain file errors and damaged file endings.
Incomplete image data
Keep every complete decoded row.
Verified PNG output
Open the recovery copy and report what was kept.
How to repair a corrupted PNG
- 01
Select the PNG
Choose the damaged image below. Its contents stay inside your browser.
- 02
Read the findings
See which blocks and rows survived the damage.
- 03
Download the checked copy
Save the recovered PNG with a clear result label.
Keep in mindMissing areas are marked in partial results. The damaged original is left unchanged.
File recovery FAQ
Can a corrupted PNG be repaired online?
Yes, for the damage Openable supports. The file itself never leaves your browser.
What is a PNG CRC error?
Each PNG block includes a built-in damage check. If it fails, that block's data changed.
Will transparent pixels be preserved?
Yes, when the original rows and color layout survive. Alpha transparency is kept.
What happens to the original PNG?
The original stays unchanged. You download a separate copy.