Password Strength Checker

- One minute read - 122 words

Type a password below to see how strong it is. This tool runs entirely in your browser. Your password is never sent anywhere.

How this works

This checker evaluates your password based on:

  • Length – longer passwords are exponentially harder to crack
  • Character variety – mixing letters, numbers, and symbols expands the search space
  • Known common passwords – checks against a list of the most frequently used passwords

For a more thorough check, see Have I Been Pwned which checks your password against billions of known breached credentials.

Privacy

This tool runs entirely in your browser using JavaScript. No data is sent to any server. You can verify this by viewing the page source or disconnecting from the internet before using it.