Password Strength Analyzer - Check Password Security
Analyze your password strength, detect vulnerabilities, and get expert recommendations to improve security.
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About Password Strength Analyzer
This tool analyzes password strength using multiple security criteria including length, character diversity, common patterns, dictionary words, and known vulnerabilities. It provides real-time feedback and actionable suggestions to improve password security.
Frequently Asked Questions
The analyzer evaluates passwords based on length, character variety (uppercase,
lowercase, numbers, symbols), common patterns, dictionary words, and known weak
passwords. It calculates entropy (randomness) and checks against databases of
compromised passwords to provide a comprehensive security score.
Yes! All password analysis happens entirely in your browser using JavaScript. Your
password is never sent to our servers or stored anywhere. However, for maximum
security, we recommend testing similar passwords rather than your actual passwords,
or using this tool only for educational purposes.
A strong password has: (1) At least 12-16 characters, (2) Mix of uppercase,
lowercase, numbers, and symbols, (3) No dictionary words or personal information,
(4) No common patterns like "123" or "abc", (5) High entropy (randomness). Use a
password generator for best results.
Common vulnerabilities include: dictionary words (easily guessed), sequential
characters (123, abc), repeated characters (aaa, 111), keyboard patterns (qwerty),
personal information (names, dates), short length (under 8 chars), and passwords
found in breach databases. Our analyzer detects all these issues.
To improve password strength: (1) Increase length to 16+ characters, (2) Add special
characters and numbers, (3) Mix uppercase and lowercase, (4) Avoid dictionary words
- use random combinations, (5) Don't use personal information, (6) Use a password
manager to generate and store strong passwords, (7) Enable 2FA for additional
security.