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Password Strength Checker

Rate password strength with entropy and specific weaknesses.

How to use

  1. Type or paste a password.
  2. Read the verdict and entropy estimate.
  3. Fix the specific issues listed.

Frequently asked questions

Is it safe to type a password here?

The check runs locally and nothing is transmitted - but the safest habit is testing similar passwords, not your real one.

What makes a password strong?

Length first (16+), then variety. Random beats clever - use our Password Generator.

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