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Password strength checker

Score a password from terrible to legendary based on what's in it.

Maker· ages 12–1425 minstring methodsany()conditionalslists

password.py

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First load pulls ~10 MB of Python. Only happens once — the browser caches it after.

What should the output look like?

You should see the password broken down by feature, then a score with a label.

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How this works

Scores a password out of 6 based on length and character types. any() returns True if at least one character matches. The label uses a list — the higher the score, the fancier the label.

Your turn — try these

1Add a check for repeated characters (like 'aaaa') that penalises the score.
2Warn if the password matches a top-10 common list ("password", "qwerty", etc.).
3Award bonus points for length above 16 characters.