Seal Extractor

Detect the red seal area in an image, remove white background and noise, output a transparent PNG seal.

Extracts red stamps from scans and contract photos, outputting transparent PNGs. Images are never uploaded.
Red Sensitivity40
Increase=keeps only purer reds
Edge Strength1.4
Increase=stamp becomes more solid with fewer artifacts
Output Mode
Stamp Color

How to use

Seal Extractor is a free online tool in our image tools collection. Detect the red seal area in an image, remove white background and noise, output a transparent PNG seal. Just enter or upload your content above and the result updates instantly — copy or download it in one click. No signup, no installation, and everything runs locally in your browser: your files are never uploaded to any server.

Frequently Asked Questions

How do I use Seal Extractor?

Detect the red seal area in an image, remove white background and noise, output a transparent PNG seal.. Open the tool above, enter or upload your content, and the result appears instantly — then copy or download it. No signup required.

Is Seal Extractor free?

Yes. Seal Extractor is completely free with no signup, no login and no usage limit. You can use it as often as you like.

Do I need to upload my files? Is my data safe?

No upload needed. Every tool on Wevva Tools runs locally in your browser, so your files and text never leave your device — nothing is stored on our servers.

Support Us

If this tool helps you, feel free to scan the QR code to support our development.

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