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Check your password strength and get tips to make it stronger and more secure.
🔒 Nothing is stored or transmitted
Simply type your password in the field above. As you type, the tool instantly shows a strength score, animated segments, estimated crack time, and a checklist that turns green as each requirement is met. Use the eye icon to toggle visibility.
Never. The analysis runs entirely in your browser using JavaScript. Nothing is sent to any server, and nothing is stored.
Length (12+ characters), a mix of uppercase and lowercase letters, at least one number, and at least one special character. The longer the better — each extra character exponentially increases difficulty.
Common words and patterns like "P@ssw0rd" score low because they appear in attacker dictionaries even with substitutions. Truly random passwords with 16+ characters are far stronger.
It's calculated from the password's character space and length, assuming a modern offline brute-force attack at 100 billion guesses per second — a conservative real-world estimate.
Entropy measures unpredictability. Each bit doubles the cracking difficulty. 40 bits = weak, 60 bits = good, 80+ bits = very strong, 100+ bits = practically uncrackable.
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