StampThat: Prevent Scammers from Stealing your Identity

by micaux.nicolas · Privacy & Security

Manifest V3 in_app

View in Chrome Web Store Data as of 15 Oct 2026

Protect yourself from Identity Theft by using Stamp That!

Users

+29 in 30 days

Rating

5.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#105K

#87K among extensions

Version

1.0.6

updated 10 Feb 2026

Users

monthly, 9 months

Latest, 15 Oct 2026: 54 usersMove the mouse over the chart for any month

Ratings count

monthly, 9 months

Latest, 15 Oct 2026: 2 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About StampThat: Prevent Scammers from Stealing your Identity

StampThat automatically watermarks your documents the moment you upload them—anywhere on the web: email, Google Drive, WhatsApp Web, administration portals, bank forms, and more. A watermarked ID or contract cannot be reused to take out loans or commit fraud. With StampThat, your documents stay usable for their purpose, but worthless to hackers. How it works - 📤 Detects document uploads automatically (drag & drop, paste, file inputs) - ✍️ Adds customizable watermark instantly - 🌐 Works on any website - ✅ Supports images, PDFs, and ZIP archives - 🔍 Format whitelists & blacklists for full control All processing happens locally in your browser. Your files never leave your computer. Built for people who share sensitive documents - Anyone looking for a rent, submitting documents to banks, landlords, or administrations - Freelancers sending IDs or contracts - Students applying to job offers Privacy by design - ✅ 100% local processing - 🚫 No data collection Stamp That is available in 18 languages. - 🆓 FREE weekly quota included - 💳 Buy credits for unlimited usage 👉 Install the Stamp That Chrome extension in one click and protect your personal data BEFORE sharing, NOT WHEN IT'S TOO LATE.