🔒 Your password is checked entirely in your browser. It is never sent to any server.
Strength
— Enter a password
WeakFairGoodStrongVery Strong
—Score / 100
—Length
—Est. Crack Time
—Entropy (bits)
How to Use Password Strength Checker
1
Type your password into the box.
2
The strength meter and score update live.
3
Read the improvement tips below the meter.
Features
✓Live strength meter (Weak / Fair / Good / Strong / Very Strong)
✓Checks: length, uppercase, lowercase, numbers, symbols
✓Detects common patterns (123, abc, keyboard walks)
✓Shows estimated crack time
✓Improvement tips shown
✓Password is never sent to the server
Why Use This Tool
Know before you use whether a password is safe
Learn what makes passwords strong
Improve security habits
Client-side only — complete privacy
Frequently Asked Questions
Is my password sent to your server?
Absolutely not. All checking happens in your browser using JavaScript. Your password is never transmitted.
What makes a password strong?
A strong password has 12+ characters, uses uppercase, lowercase, numbers and symbols, and avoids dictionary words and patterns.