About Stamp Extractor

Stamp Extractor is a specialized online tool that isolates a stamp from an image and outputs it as a transparent PNG.

How it works

The tool uses a color-confidence algorithm (HSV/LAB color analysis) to keep the stamp ink and remove the paper background. You can process the full image or crop the stamp area first, then choose a red or blue preset, or sample any custom color directly from the image.

Not AI

Extraction is deterministic and rule-based — no AI recognition is involved, and your image is never used to train a model. This keeps results predictable and your data private.

Responsible use

This service is intended for images and stamps that you own or are authorized to reproduce. Please read our Terms of Service and Privacy Policy before uploading sensitive documents.