What is image corruption?

Image corruption occurs when the data that makes up an image file becomes damaged, incomplete, or improperly formatted. This can happen due to incomplete downloads, file transfer errors, storage device failures, or malware. When an image is corrupted, it may not display correctly in standard viewers—some pixels might be missing, colors distorted, or the file may not load at all.

Tool description

The Corrupted Image Viewer helps you diagnose and repair damaged image files. Upload a corrupted image and the tool will detect its format (JPEG, PNG, GIF, WebP, BMP), parse the image metadata to determine dimensions, identify corruption issues, and apply repair techniques to recover as much of the original image as possible. It displays both the original (if loadable) and the repaired version side by side.

Features

  • Automatic format detection — Identifies image type even if the file header is damaged
  • Dimension parsing — Extracts width and height from image metadata
  • Repair and recovery — Applies multiple fix strategies including header repair, byte recovery, and partial pixel reconstruction

How it works

The tool analyzes the binary data of the uploaded image file, looking for format signatures and structural patterns. It attempts to repair common corruption issues by:

  1. Reconstructing missing or damaged file headers
  2. Recovering readable pixel data from the remainder of the file
  3. Filling in missing sections with best-guess interpolation

After repair, the tool displays what was fixed and shows you a preview of the recovered image, helping you understand whether the file can be salvaged.

Limitations

  • Heavily corrupted files with large missing sections may produce minimal or unusable results
  • Some image formats store data in ways that make recovery difficult if the core pixel data is destroyed
  • This tool attempts repair but cannot guarantee perfect restoration of the original