Pwned Notifier

by ktoanphan · Workflow & Planning

Manifest V3 Free

View in Chrome Web Store Data as of 17 Oct 2026

Check if the website being visited had a data breach with a single click!

Users

−4 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#188K

#157K among extensions

Version

1.1

updated 4 Nov 2021

Users

monthly, 3 years

Latest, 17 Oct 2026: 11 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years

Latest, 17 Oct 2026: 0 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 Pwned Notifier

This is a simple, open-source Chrome extension that lets users check if the website in the current tab was found in the data breach database. The database used in this project can be found at https://haveibeenpwned.com/PwnedWebsites. The GitHub repo for this project can be found at https://github.com/ktoanphan/pwned-notifier. Feel free to contact the developer if you have any questions/suggestions. Thanks!