How Fast Can a Hacker Crack Your Password Pattern?
Don't enter your real password. Enter a fake one with the same length and style
(like Summer2025! or Password123) to see if your habits are safe.
Paranoid? Good. This runs 100% in your browser. Turn off your Wi-Fi and it still works.
How This Tool Protects Your Privacy
100% Client-Side Analysis
Pattern analysis happens entirely in your browser using zxcvbn, the same library used by Dropbox. Your test password never leaves your device.
k-Anonymity Breach Check
To check breach databases, we send only the first 5 characters of a one-way hash. This makes it mathematically impossible to determine your password from what we send. Learn more →
Works Offline
The ultimate proof: disconnect your internet and the strength analysis still works. Only the breach database check requires a connection.
View the Code
Don't trust us? Good. Inspect the source code yourself. Right-click → View Source to see exactly what this tool does.
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Your password is strong. But it might already be stolen.
Strength doesn't matter if hackers already have it from a data breach.
These tools monitor the dark web 24/7 and alert you when your credentials leak.
Free one-time check: Have I Been Pwned — For continuous monitoring:
You checked one password. What about the rest?
Most people have 100+ accounts with weak or reused passwords. Get your full security score in 2 minutes.
Check Your Overall Security Score →