About this tool
The Password Strength Checker analyzes a password against length, character variety and common weaknesses, then gives it a score with clear tips to make it stronger. Everything runs locally in your browser — your password is never sent anywhere. Use it to see whether a password is safe before you rely on it.
How to use
- 1Type a password to test.
- 2Read the strength score and checklist.
- 3Apply the suggestions to strengthen it.
Benefits
- Instant strength score.
- Actionable improvement checklist.
- 100% local — nothing is sent.
What the strength result means
Practical example
A long unique passphrase can score better than a short password packed with predictable symbols. Test a similar example rather than a real production password whenever possible.
Interpreting the result
The score estimates resistance from length and character variety. It is a local quality check, not a search of leaked-password databases and not proof that an account is protected.
Limits and common mistakes
No meter understands every predictable pattern or personal clue. Avoid names, dates, keyboard sequences and reused phrases even when the displayed score appears high.
Detailed guides for this tool
Learn the underlying concepts, worked examples and common mistakes before relying on the result.
Frequently asked questions
Is it safe to type my real password?+
Yes. The check runs only in your browser and your password is never transmitted or stored.
What makes a password strong?+
Length above all, plus a mix of uppercase, lowercase, numbers and symbols, and avoiding common words.