AIOBook
Free SEO tool

Password Strength Checker

Check password strength locally using length, variety, and simple weakness patterns.

  • Score
  • Tips
  • Local
Password Strength Checker illustration

Password Strength Checker

Check password strength locally — length, variety, and simple weakness patterns.

Very Weak0/100
  • • Use at least 8 characters.
  • • Add lowercase letters.
  • • Add uppercase letters.
  • • Add numbers.
  • • Add symbols.

Advantages of Strength Checking

Strength feedback helps users create better passwords before accounts get compromised.

Actionable tips

Know what to improve.

Instant scoring

See strength as you type.

Local privacy

Password never leaves browser.

Policy coaching

Encourage longer mixed passwords.

Onboarding UX

Guide safer signups.

Risk reduction

Catch weak choices early.

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