Password Strength & Breach Checker — Instant Security Tool

Is your password strong enough? Has it already been stolen? Find out in seconds with this free browser-based tool — no account, no app, no installation required.

WHAT IT DOES:

→ Scores your password strength from 0–100 instantly

→ Checks 6 security criteria in real time as you type

→ Shows character length, complexity types, and entropy bits

→ Scans 10+ billion breached passwords via Have I Been Pwned

→ Gives personalized recommendations based on your results

HOW IT WORKS: Download the file, open it in any browser, and start checking passwords immediately. No API key needed — works right away. YOUR PRIVACY IS PROTECTED: Your password is never transmitted anywhere. Only a partial SHA-1 hash is sent using the k-anonymity model — the same privacy standard used by major security organizations worldwide.

PERFECT FOR:

→ Anyone who wants to know if their password is safe

→ Business owners securing their accounts

→ IT professionals educating their teams

→ Anyone setting up new accounts online

Built by PeregrinoTech Military Precision. Cyber Defense. Real-World AI.