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.