Password Strength Checker
Check how strong your password is with detailed analysis and tips.
Requirements
Tips for a strong password
- Use at least 12 characters — longer is stronger
- Mix uppercase, lowercase, numbers, and symbols
- Avoid dictionary words, names, and personal info
- Use a passphrase: "Coffee$Runs#Every!Morning"
- Use a unique password for every account
How to Use Password Strength Checker
- 1
Type or paste your password.
- 2
Toggle the eye icon to show/hide characters.
- 3
View the strength bar and level (Very Weak to Very Strong).
- 4
Check which criteria are met in the requirements list.
- 5
Read the tips panel for advice on improving your password.
About Password Strength Checker
Analyze any password instantly with our free password strength checker. Get a color-coded strength rating, entropy score in bits, and a detailed security checklist — all without your password ever leaving your device.
Key Features
- 7-Criteria Analysis: Checks length, uppercase, lowercase, numbers, symbols, uniqueness, and common patterns.
- Strength Bar: Color-coded rating from Very Weak to Very Strong.
- Entropy Estimate: Shows password entropy in bits — aim for 60+ bits for good security.
- Common Password Warning: Flags if your password matches the 15 most commonly used passwords.
- Improvement Tips: Actionable advice on how to make your password stronger.
Who Is This For?
Anyone creating new account passwords, IT administrators setting password policies, security-conscious users auditing existing passwords, and developers building password validation features.
Privacy & Security
Runs 100% in your browser — your password is never sent to any server. No signup, no data stored.