AI edit forensics · Runs in your browser

You asked for one change. What else changed?

Generative editors can re-render the whole picture. Labels, logos, faces and colours can shift where you never asked. Drop the original and the edited image, mark the area you wanted changed, and Edit Creep maps colour and structural differences that meet its detection thresholds outside it.

1 Original image The picture before the AI touched it PNG, JPEG, WebP, AVIF — or drop it here 2 AI-edited image Same scene — scale and offset are estimated PNG, JPEG, WebP, AVIF — or drop it here

Nothing is uploaded. Images are decoded and compared inside this tab.

How it works

Align. A coarse-to-fine search estimates uniform scale and offset, including modest crops. Rotation, perspective changes and non-uniform stretching are not corrected.
Normalize. A global colour or brightness drift is measured, reported and set aside.
Compare. Colour difference (CIELAB ΔE) and structure (SSIM) are measured per pixel, tolerating one-pixel resampling shifts.
Mark your intent. Paint the area you asked to change, or mark a found region as intended.
Review. Detected differences are grouped into numbered regions with zoomed before/after crops. Fine details and changes below the thresholds can be missed.