PwnSniff by BreachRadar

Check if your passwords have been compromised in data breaches using the Have I Been Pwned API. Fast, privacy-respecting, and easy to use.

Experimental

0 (0 reviews)

1 User

You'll need Firefox to use this extension

Download Firefox and get the extension

Download file

About this extension

PwnSniff uses the Have I Been Pwned API to scan your passwords and alert you if they've appeared in known breaches. It never sends your actual passwords—only partial hashes, keeping your data private. Works locally, fast, and efficiently.

You can add more markdown-supported details here if you want, such as:

markdown
Copy
Edit

Features

Uses k-Anonymity model (via HIBP)
No password data leaves your device
Quick breach checks from your browser
Lightweight & open-source

Rated 0 by 0 reviewers

Optional permissions: