🍋 Privacy & Security
Password Strength Checker
Analyze password strength and vulnerability
chars
words
sentences
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Results
Result
About Password Strength Checker
Evaluate password strength with detailed scoring, pattern detection, and actionable improvement suggestions. Checks against common password lists.
How It Works
Analyzes your password locally (never sent to any server) using multiple criteria: length, character diversity, pattern detection (sequences, repeats, keyboard walks, dates), and common password database matching.
Step by Step
- 1 Enter or paste a password to analyze
- 2 View the strength score (0–100) and grade
- 3 Check detected patterns and weaknesses
- 4 Follow improvement suggestions
Tips
- Avoid dictionary words and personal information
- Keyboard patterns like 'qwerty' are easily guessed
- Longer passwords are exponentially harder to crack
- Substitutions like 'p@ssw0rd' are well-known to attackers
Frequently Asked Questions
Is my password sent anywhere?
No. All analysis happens entirely in your browser using JavaScript. Your password never leaves your device.
What makes a password strong?
Length is the most important factor, followed by character diversity and randomness. Avoid patterns, common words, and personal information.